Consumer Electronics

4G Cellular Amplifier 800 GSM 900 DCS 1800 WCDMA UMTS 2100 LTE 2600mhz 2G 3G 4G Repeater Mobile Phone Signal Booster#Lintratek

Item Code: 1005003249495101
Price: $ 352.88 $ 605.23
["2021 Newest Five Band Amplifier 800 900 1800 2100 2600mhz<\/strong>","800+900+1800+2100+2600mhz <\/strong>","\uff1a","Suitable for European countries and most Asia countries","such as :","Russia, Spain, Portugal, France, Germany, Italy, Poland, Ukraine, Czech Republic, Estonia, Netherlands",", etc. . .","700+900+1800+2100+2600mhz : <\/strong>","Suitable for some European, American and Asian countries \uff1a","such as :","Brazil,France,Germany,Philippines",",etc...","700+850+1700+1900+2600mhz : <\/strong>","Suitable for American countries :","Colombia, Mexico, Chile, Peru, Argentina<\/strong>",",","etc.","The first step : Determine your cell phone frequency","The signal booster needs to match the frequency of your mobile phone to work.","If you don't know your frequency ,you could please test it in these ways:","IPhone :"," call  ","*3001#12345#*","and then send the screenshot us.","Android phone :","please install the app","<Network cell info>","or","<cell mapper>",", then show the screenshot to us.","\u30105band Booster\u3011","1 booster include 5bands !!    ","Low price, high cost performance","----- Enhance 2G 3G 4G at the same time<\/strong>","2G 3G : 900mhz , 2100mhz","4G : 800mhz , 1800mhz , 2600mhz","-----Selling point<\/strong>","Gain : 70db       Power : 20dbm","Suitable for all operators on Europe\uff0cno need to worry about choosing wrong frequencies","        With quality assurance, one-year free warranty,","free return<\/strong>","within 15 days after confirmation of receipt, with CE\/ROHs\/ISO certificate","        The booster could improve all GSM, 2G, 3G and 4G LTE. Both voice signal and data for all operators would be enhanced at the same time.","        Easy installation , low radiation\uff0chas ALC AGC function , can effectively avoid signal interference","        Scenes to be used \uff1aSuitable for country houses, basements, apartments, offices, farms, etc....","        Cover area : can cover about 100~300sqm without any barrier \uff0cif the area you need to cover has a wall blocking the signal, you can install 2~4 antennas to increase the coverage","-----Working principle:","The 3 necessary conditions for the amplifier to work normally:"," ","matched frequency, correct installation, and good outdoor signal","------<\/strong>","match frequency :","Please make sure your phone frequency is match with the booster. If you don't know your frequency , please test your frequency and send us the result.","------","correct installation :"," ","The indoor antenna and the outdoor antenna must be separated by"," ","more than 10m<\/strong>",", otherwise the amplifier will have self-interference, and the amplifier will not be able to enhance the signal. If this happens, please contact the seller and we will try our best to help you solve the problem!","------<\/strong>","good outdoor antenna :"," our product is signal booster ,not signal generator\uff0cso please make sure you could receive more than ","3bars"," signal on the place where you are planing to install the outdoor antenna , If cell phone catches less than 3 siganl bars outdoor : ","please purchase after consideration .","Packaging introduction :<\/strong>","From now on, all orders shipped from the China warehouse are upgraded to the new packaging.","\u2460 Luxury packaged : Box update , Lintratek brand logo , Beautiful design.","\u2461 Firmly packaged :  Stronger box that protects the product from arriving safely in transit.","\u2462 Gift for friends and family : A great gift for friends and family to strengthen your bond.","Option 1 :","800+900+1800+2100+2600mhz Booster *1  ","3dbi celling indoor antenna *1","Omni-directional gain outdoor antenna *1","13m","cable *1","Option 2 :","800+900+1800+2100+2600mhz Booster *1  ","9dbi panel indoor antenna *1","Omni-directional gain outdoor antenna *1","13m","cable *1","(* If ship from Spain or Russian warehouse , the cable is","15m<\/strong>",")","Option 3 :","800+900+1800+2100+2600mhz Booster *1  ","9dbi panel indoor antenna *1","Directional gain outdoor antenna *1","15m","cable *1","(* If ship from Spain warehouse , the cable is","10m<\/strong>",")","Option 4 :","700(B28)+900+1800+2100+2600mhz Booster *1  ","9dbi panel indoor antenna *1","Directional gain outdoor antenna *1","15m","cable *1","Option 5 :","700(B28)+850+1700+1900+2600mhz Booster *1  ","9dbi panel indoor antenna *1","Directional gain outdoor antenna *1","15m","cable *1","Option 6 :","800+900+1800+2100+2600mhz Booster *1  ","    (only booster ,no antennas and cable)<\/i>","Shipping Terms :","Service:","Buyer Duty:","1.Provide us your correct contact information.","2.Custom clearance and pay for tax.","3.Please know that the import  policy about signal booster in your country before buy.","Feedback:"]
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GEKT88 (KT88-98) Shuguang tube precision matching genuine free shipping

Item Code: 1005002713339750
Price: $ 369.2 $ 390
["Thank you for visiting our shop.\n<\/strong>","I wish you a happy life.\n<\/strong>","\n<\/strong>","GEKT88 on behalf of KT88-98 factory direct sales warranty for one year, free matching\n<\/strong>","\n<\/strong>","The KT88 series includes KT88, GEKT88, KT88-98, KT100, CV5220, 6550A-98, which are indirectly heated cathode beam tetrodes. It is mainly used for models with higher audio power for push-to-replace output. This series of tube-in-tube boards use KT88 and GEKT88 for 40W, and KT88-98, KT100, CV5220, and 6550A-98 boards can consume up to 45W, which is very It is suitable for ultra-linear connection tube amplifier circuit, with good pressure resistance, strong power, strong sense of bursting, and wide sound range. It adopts the design and technology of noise suppression and vibration resistance. It is one of the main products of Shuguang Electronic Tube Factory. The annual sales volume of the products is between 80,000 and 100,000, which is deeply supported and favored by customers, and has the reputation of \"Prince Charming\". The anode limit dissipation power of the beam power tetrode KT88 is 42W. In the audio amplifier, the power of 100W can be obtained when the two tubes are used as AB1 push-pull output, and the KT88 can also be used in the electronic voltage regulator circuit. The KT88 series is similar to CV5220 and 6550, and can be used interchangeably. The KT88 graphic is the same as the KT88-98 tube graphic below.\n<\/strong>","\n<\/strong>","The anode limit dissipation power of the beam power tetrode KT88 is 42W. In the audio amplifier, the power of 100W can be obtained when the two tubes are used as AB1 push-pull output, and the KT88 can also be used in the electronic voltage regulator circuit. KT88 is similar to CV5220 and 6550 and can be used interchangeably\n<\/strong>","\n<\/strong>","Regarding matching:\n<\/strong>","all our tubes are matched in the factory production workshop. The match is accurate (not all tubes are matched). We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters of the two tubes are the same)\n<\/strong>","\n<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.\n<\/strong>","\n<\/strong>","Note: (After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","<\/strong>","<\/strong>","<\/strong>","<\/strong>","<\/strong>"]
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Vacuum Tube Mullard 12AU7 ECC82 12AX7 ECC83 Factory Test And Match

Item Code: 1005003088813913
Price: $ 370 $ 430
["Thank you for visiting our shop.<\/strong>","I wish you a happy life.<\/strong>","Original Russian Mullard 12AU7 ECC82 tube<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: Ship after inspection(After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","Regarding matching:<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>","Introduction:<\/strong>","In a series of re-engraving of the famous management plan of the US NEW SENSOR Group, of course, it also locked this coveted Mullard name management. After obtaining the same manufacturing process and design as the trademark and the original production line, he moved to St. Petersburg, Russia, and used local high-quality engineering manpower and old OTK technical support to successfully reproduce Mullard EL34, 12AX7, 12AU7, EL84, KT88 and other series of classic tubes .<\/strong>","All new re-engraved versions adhere to the original requirements to show the characteristics of the old tube. The vacuum treatment and internal metal materials, as well as the material and thickness of the glass bottle body, and even the pin solder ratio, are implemented in accordance with the original tube's technical manual. The new century factory management and more stringent testing also make the re-enacted version more reliable and complete. Even the packaging is completely executed in accordance with the existing printing, and the texture is very good.<\/strong>","Sound quality is the most concerned topic for enthusiasts. After the original factory has verified the electrical characteristics and durability, compared with the old tube, the original strength and sound thickness are not bad at all, and the new tube is even more extended than the old tube. High frequency, full of air.<\/strong>"]
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XH-M542 TPA3116 Dual-channel Stereo High Power Digital Audio Power Amplifier Board TPA3116D2 Amplifiers 1*100W Amplificador DIY

Item Code: 1005004085255738
Price: $ 31.85
["Patch aluminum electrolytic capacitor Features: large capacity, chip capacitors and floor with soldering.","There is no solder joint on the back of the circuit board, so there is no possibility of causing a short circuit.","Chip capacitors selected components and production process costs are higher than the plug capacitor.","TPA3116D2 efficient Class D operation, both greater than 90% power efficiency and low idle loss characteristics, advanced modulation system configuration, multiple switching frequency, AM interference block.","TPA3116D2 for short circuit, overvoltage, overheating, undervoltage, DC and other failures to provide a comprehensive protection.","In the event of an overload, the device warns the processor of the fault condition, thereby preventing itself from being damaged","Chip Type: TPA3116D2","Supply voltage: dc12-26v","Output Power: 100W","SNR: 100db","Channels: Mono","size: 79 * 54 * 16MM"]

Vacuum Tube EH EL84/ 6P14/ 6BQ5 Factory Test and match Genuine

Item Code: 1005003042427406
Price: $ 224 $ 280
["Thank you for visiting our shop.<\/strong>","I wish you a happy life.<\/strong>","Russia Vacuum Tube EH EL84\/ 6P14\/ 6BQ5 Factory Test and match Genuine<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: (After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","Regarding matching:<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>"," Electro-Harmonix is the largest brand under the US NEWSENSOR Group. It has a wealth of history and experience in tube manufacturing. It uses good materials and the most demanding manufacturing process to provide audio enthusiasts and instrument players with the highest quality and most musical tube .. EH provides electronic tubes for dozens of first-line audio manufacturers, and is more popular among audio enthusiasts. Maybe you are using EH tubes. I believe you will be able to appreciate the perfect sound and reliable quality of EH tubes.<\/strong>","Electro-Harmonix is an electronics company with operations mainly in the United States. The company not only operates electronic tubes but also various electronic instruments. Its Electro-Harmonix brand electron tubes are produced by SOVTEK, the largest and oldest electron tube factory in Russia. However, compared with SOVTEK, Electro-Harmonix tubes use many new technologies and draw on the design of many classic famous tubes. The sound and sound of the tubes are The quality has reached a new level.<\/strong>","The Electro-Harmonix product line is very complete, including voltage amplifier tubes, forced discharge tubes, and rectifier tubes. The tube filament adopts a spiral winding method to eliminate the buzzing noise caused by the filament and the cathode when the voltage is amplified. The strong discharge tube also strengthens the design of the column and the spacing of the mica sheets, the mechanical performance is very reliable, and the power output is more stable and lasting. All the tubes have used the new glass synthesis technology to improve the vacuum degree of the tubes, so that the balance is better and the service life is longer. Its stable quality, neutral sound, and affordable price make it the most popular electronic tube brand.<\/strong>"]
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Vacuum Tube EH 12BH7 12BH7A Golden Foot Factory Test and match Genuine

Item Code: 1005003042399358
Price: $ 354 $ 410
["Thank you for visiting our shop.<\/strong>","I wish you a happy life.<\/strong>","Russia Vacuum Tube EH 12BH7 12BH7A Golden Foot Factory Test and match Genuine<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: (After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","Regarding matching:<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>"," Electro-Harmonix is the largest brand under the US NEWSENSOR Group. It has a wealth of history and experience in tube manufacturing. It uses good materials and the most demanding manufacturing process to provide audio enthusiasts and instrument players with the highest quality and most musical tube .. EH provides electronic tubes for dozens of first-line audio manufacturers, and is more popular among audio enthusiasts. Maybe you are using EH tubes. I believe you will be able to appreciate the perfect sound and reliable quality of EH tubes.<\/strong>","Electro-Harmonix is an electronics company with operations mainly in the United States. The company not only operates electronic tubes but also various electronic instruments. Its Electro-Harmonix brand electron tubes are produced by SOVTEK, the largest and oldest electron tube factory in Russia. However, compared with SOVTEK, Electro-Harmonix tubes use many new technologies and draw on the design of many classic famous tubes. The sound and sound of the tubes are The quality has reached a new level.<\/strong>","The Electro-Harmonix product line is very complete, including voltage amplifier tubes, forced discharge tubes, and rectifier tubes. The tube filament adopts a spiral winding method to eliminate the buzzing noise caused by the filament and the cathode when the voltage is amplified. The strong discharge tube also strengthens the design of the column and the spacing of the mica sheets, the mechanical performance is very reliable, and the power output is more stable and lasting. All the tubes have used the new glass synthesis technology to improve the vacuum degree of the tubes, so that the balance is better and the service life is longer. Its stable quality, neutral sound, and affordable price make it the most popular electronic tube brand.<\/strong>"]
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JJ 5U4GB Slovakia Vacuum Tube JJ 5U4GB Replace 5U4G GZ34 5Z3P 5R4G 274B 5AR4 5U4 Rectifier Tube Factory Test And Match

Item Code: 1005003237043572
Price: $ 354 $ 410
["Thank you for visiting our shop.<\/strong>"," JJ 5U4GB Slovakia Vacuum TubeReplace 5U4G GZ34 5Z3P 5R4G 274B 5AR4 5U4 Rectifier Tube Factory Test And Match<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: Ship after inspection(After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","Regarding matching:<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>"]
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AIYIMA 25A EMI Power Filter Board Anti-interference AC Power Filter Power Supply For Speaker Amplifier DIY

Item Code: 4000895158911
Price: $ 35.54 $ 39.25
["AIYIMA TPA3116 Subwoofer Amplifier Board TPA3116D2 Audio Amplifiers 100W Bass Output DC12-24V<\/a>","USD 14.34<\/em>\/piece","AIYIMA A8 MA12070 Power Amplifier Stereo Audio Amplifier Sound Amplificador 80Wx2 T8 6N3 Tube Preamp Bluetooth 5.0 Preamplifier<\/a>","USD 63.88-165.28<\/em>\/piece","AIYIMA Upgraded 6K4 Tube Preamplifier Amplifiers HiFi Tube Preamp Bile Buffer Auido Amp Speaker Sound Amplifier Home Theater DIY<\/a>","USD 14.69<\/em>\/piece","AIYIMA 2Pcs 2 Inch Full Range Speaker 4 Ohm 10W Bluetooth Speaker 53MM Bass Speaker For Charge 3 Repair Multimedia Home Audio<\/a>","USD 13.85<\/em>\/lot","AIYIMA TPA3116 Subwoofer Amplifier Board 2.1 Channel High Power Bluetooth 5.0 Audio Amplifiers DC12V-24V 2*50W+100W Amplificador<\/a>","USD 23.32<\/em>\/piece","AIYIMA 2Pcs 52MM Audio Portable Speakers 6 Ohm 30W Dome Silk Film Tweeter ABS Treble Speaker Loudspeaker With Aluminum Radiator<\/a>","USD 13.50<\/em>\/lot","AIYIMA 12V BT MP3 Decoder Audio Module Spectrum Display Lossless APE Decoding Support APP EQ FM AUX Car Accessories<\/a>","USD 10.20<\/em>\/piece","AIYIMA Pre-amplifier Tone Board UPC4570C OP AMP Stereo Preamplifier Volume Tone Control Super OPA2604 AD827JN With LM317+LM337<\/a>","USD 31.54<\/em>\/piece","\"Item-Description\"","Product description:","Introduction of EMI power filter circuit:","  The circuit is composed of three parts, the first part is the differential mode filter part, the second part is the common mode filter circuit, and the third part is fuse, equipped with a fuse holder. Replaceable fuses of different specifications.","  The internal circuit of the two-stage composite EMI filter, because of the two-stage (also known as two-section) filtering, so the effect of filtering noise is better. For some users, the problem of fast transient group pulse interference with a repetition frequency of several kilohertz can be suppressed."," The PCB specification is FR4 83X42X1.6MM, the shortest design of the high-current circuit, the path is short, it can withstand more current and less interference to the outside world.","There are four specifications of common mode inductance: 2A, 4A, 15A and 25A.","2A common mode inductor filter.","4A common mode inductor filter","15A flat copper tape common mode inductor","25A flat copper tape common mode inductor and iron silicon aluminum differential mode inductor","Note: 2A and 4A filters are equipped with 5A fuses as standard, 15A and 25A filters are equipped with 20A fuses as standard.","  This product is used in conjunction with the decoder or power amplifier to filter high-frequency noise from the power supply, eliminate mains interference, and purify the power supply. It can significantly improve the sound quality of the power amplifier, increase the resolution, and make the background quiet.","The input GND needs to be connected to the ground wire of the power","The following is some common knowledge of high frequency electromagnetic interference EMI filter.","   For high-frequency electromagnetic interference (EMI), generally three techniques can be used for power supply filtering, which can suppress interference noise. In actual use, two or more of these techniques are often mixed. They are:","   1. Add a capacitor between the live and neutral lines of the power supply, that is, the X capacitor. Choose X2 type, the main function is to eliminate common mode interference, the capacity range is 0.01UF --- 0.47UF.","   2. Add a capacitor between the power line and the ground line, that is, Y capacitor. The Y2 type is selected to eliminate crosstalk interference, and the capacity range is 2200pF \uff5e 0.1\u03bcF. In order to reduce the leakage current, the electric capacity should not exceed 0.1\u03bcF, this circuit board uses 3300PF.","   3. Common mode suppression, common mode inductance (suppression coils on the two power lines), when the rated current is large, the wire diameter of the common mode choke should also be increased accordingly, so as to be able to withstand larger currents. In addition, appropriate increase in inductance can improve low-frequency attenuation characteristics, this line uses 10MH.","4. Poor touch suppression, poor touch inductance, and suppression of series mode interference between power lines.","Package included:","1Pcs","\"Item-Picture\"","\"1\"\"2\"\"3\"\"4\"\"5\"\"6\"\"7\"","\"\u91d1+\u51ac-\u552e\u540e\""]
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AIYIMA 2Pcs 6n1n-EB Amplifier Tube Electronic Vacuum Tube Valve Upgrade 6n1n 6P1 For Sound Amplifier Audio

Item Code: 1005002564462268
Price: $ 38.71 $ 42.14
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AIYIMA 2Pcs 25W Hood 1969 Amplifier Audio Board 2SC5200 HD1969 Class A Power Amplifiers AMP With 1083 Voltage Regulator

Item Code: 1005002875163741
Price: $ 71.18 $ 81.02
["AIYIMA TPA3116 Subwoofer Amplifier Board TPA3116D2 Audio Amplifiers 100W Bass Output DC12-24V<\/a>","USD 14.34<\/em>\/piece","AIYIMA A8 MA12070 Power Amplifier Stereo Audio Amplifier Sound Amplificador 80Wx2 T8 6N3 Tube Preamp Bluetooth 5.0 Preamplifier<\/a>","USD 63.88-165.28<\/em>\/piece","AIYIMA Upgraded 6K4 Tube Preamplifier Amplifiers HiFi Tube Preamp Bile Buffer Auido Amp Speaker Sound Amplifier Home Theater DIY<\/a>","USD 14.69<\/em>\/piece","AIYIMA 2Pcs 2 Inch Full Range Speaker 4 Ohm 10W Bluetooth Speaker 53MM Bass Speaker For Charge 3 Repair Multimedia Home Audio<\/a>","USD 13.85<\/em>\/lot","AIYIMA TPA3116 Subwoofer Amplifier Board 2.1 Channel High Power Bluetooth 5.0 Audio Amplifiers DC12V-24V 2*50W+100W Amplificador<\/a>","USD 23.32<\/em>\/piece","AIYIMA 2Pcs 52MM Audio Portable Speakers 6 Ohm 30W Dome Silk Film Tweeter ABS Treble Speaker Loudspeaker With Aluminum Radiator<\/a>","USD 13.50<\/em>\/lot","AIYIMA 12V BT MP3 Decoder Audio Module Spectrum Display Lossless APE Decoding Support APP EQ FM AUX Car Accessories<\/a>","USD 10.20<\/em>\/piece","AIYIMA Pre-amplifier Tone Board UPC4570C OP AMP Stereo Preamplifier Volume Tone Control Super OPA2604 AD827JN With LM317+LM337<\/a>","USD 31.54<\/em>\/piece","\"Item-Description\"","Product description:","Voltage range: AC12V-AC28V (2-wire), 50W or more (AC18V 120W transformer is recommended)","One channel is up to 25W, one board and one channel.","PCB size: 62mm \u00d7 129mm","Features:","1: Using 5200 high-precision high-current voltage regulator output, the output voltage is more stable! Beyond the LM317! Noise is even more inaudible","2: Input using a thin film audio capacitor, the sound is better!","3: T-oshiba big tube 2SC5200 output! This tube has a maximum power of up to 150W, which allows the 1969 to output a maximum of 25W Class A! More than 2N3055! !","Debugging method:","The 1969 commissioning is divided into static current testing and neutral voltage testing.","1: quiescent current has been adjusted to the home, the default 1.2A, you can change the quiescent current by adjusting the 202 adjustable resistance on the board, recommended 1-2A! In addition, the quiescent current needs to be tested in series with the current input port.","2: Midpoint voltage test, the midpoint voltage needs to be one-half of the power supply voltage, that is, the power supply is 18V, then the midpoint voltage should be 9V, the test uses the DC voltage file, the red test pen is connected to the output capacitor positive pole, and the black test lead is grounded. Line test can be! Adjust the 204 resistor so that the voltage is equal to half of the supply voltage","Note: The capacitor is a disassembled product, and the test works well.","Package included:","2PCS Amplifier","\"Item-Picture\"","\"+-\""]
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Nobsound HiFi Dual ES9038Q2M USB DAC Coaxial / Optical Digital to Analog Converter D/A Audio Adapter Headphone Amplifier

Item Code: 1005002730236292
Price: $ 137.99 $ 199.99
["Nobsound Latest Mini 100W Subwoofer \/ Full Frequency Power Amplifier Mono Channel Audio TPA3116D2 Amp<\/a>","USD 25.99-34.44<\/em>\/piece","Nobsound T3 Plus Mini Vacuum Tube Preamp MM \/ MC Phono Stage for Turntables Pre-Amplifier Desktop Headphone Amp<\/a>","USD 58.49<\/em>\/piece","2021 Nobsound Mini TPA3116 Bluetooth 5.0 HiFi Power Amplifiers Stereo Home Audio Digital Sound Amplifier With Treble Bass<\/a>","USD 37.04-48.09<\/em>\/piece","Nobsound Bluetooth 5.0 Power Amplifier 320W Stereo 2.0 Channel Subwoofer Amp Treble Bass Adjust USB Lossless Music Player<\/a>","USD 66.94<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Audio Amplifier HiFi Class D Stereo Power Amp 100W*2 for Home Speakers<\/a>","USD 47.44-58.49<\/em>\/piece","Nobsound Hi-Fi G2 \/G2 pro Subwoofer \/ Full-Frequency Mono Channel Digital Power Amplifier 100W or 300W<\/a>","USD 45.49-66.94<\/em>\/piece","Nobsound HiFi Bluetooth 5.0 JAN 5654 Valve Tube Preamp Bass Preamplifier Stereo Audio Headphone Amplifier USB DAC APTX<\/a>","USD 90.99<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Amplifier Hifi Stereo Audio Receiver Power Amp 50W+50W Car Sound Amplifiers<\/a>","USD 19.49-29.89<\/em>\/piece","Features","D6 is a multi-function DAC & headphone amp, with PC-USB \/ optical \/ coaxial inputs, compatible with many audio device such as phone, computer, TV, CD player, TV setbox and so on; and with stereo L\/R RCA \/ 3.5mm headphone jack outputs, can enjoy HiFi music in different ways.","Reasonable circuit layout and concise wiring, the sound is clear and natural, and adopting high-quality chip architecture to achieve much better sound quality:","Adopting dual ES9038Q2M decoding chip, each one responsible for one channel, the dynamic and the separation degree are much better, and higher resolution to reproduce real live music."," ","High-quality USB chip to get higher decoding ability, supporting 24Bit \/ 44.1-96KHz transmission. AK4113 receiving chip, coaxial and optical inputs support 16\/24Bit 44.1\/48\/88.2\/96\/176.4\/192KHz."," ","TPA6120A2 headphone amp chip and with gain adjustment, can match better with headphones with different sensitivity, also with low distortion and strong drive power enough to drive 16-600 ohm headphones."," ","TL072x2+LM4562+NE5532 op amp, with low distortion, low noise, high precision and large dynamic range, and pluggable op amp socket design, convenient to upgrade other op amps of different sound styles."," ","Over ten groups of voltage regulator circuit, each of them are powered separately, without any interference and the sound detail is much richer.","USB input, compatible with windows XP \/ VISTA \/ 7 \/ 8 \/ 10 \/ MAC OS system, and also supports OTG function that can be used with mobile phones, plug and play, no special software is needed, very easy to use. With input and output selection button, easily to choose the channel you want without plugging in and out the cables repeatedly.","Proper size with exquisite appearance, each kind of inputs and outputs is designed with its own indicator to show working status very clearly. Aluminum case looks cool and fashionable, very suitable for home\/office desktop audio system use.","Warm tips:","1. PC-USB input supports OTG function but Android system needs OTG cable and IOS system needs large current camera kit, please prepare by yourself.","2. The volume control knob only can adjust the output volume of headphone jack, not valid in RCA output.","3. Without preamp function, and the line output ( stereo L\/R RCA) cannot connect passive speakers directly, needs to work with amplifiers or active speakers.","Parameters","Chipset: ES9038Q2MX2+AK4113VF+TPA6120A2+TL072x2+VT1728A+LM4562+NE5532+C1237+MCU","Audio input: USB \/ Optical \/ Coaxial","Audio output: Stereo RCA \/ 3.5mm headphone jack","PC-USB System supported: XP\/W7\/W8\/W10\/MAC OS\/Phone OTG etc.","Supported highest sampling rate:","24bit \/ 96KHz (USB)","24bit \/ 192KHz (Coaxial\/optical)","Headphone impedance: 16\u03a9-600\u03a9","\u03a9","Frequency response: 20Hz-20KHz (\u00b10.2db)","S\/N ratio: 107dB","0.001%","Working voltage: DC 12V","Dimensions(W*D*H): 95*124*30mm \/ 3.74*4.88*1.18in","Net weight: 290g \/ 0.63lb","Package weight: 700g \/ 1.54lb","Packing List","1*D6 USB DAC","1*DC 12V Power Adapter","1*USB Cable","1*6.35mm to 3.5mm Headphone Adapter"]
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Nobsound Mini Bluetooth 5.0 Digital Integrated Amplifier MM Phono Turntable Amplifier Home Stereo Amp Headphone Amp 105W+105W

Item Code: 1005003783968737
Price: $ 136.99 $ 189.99
["Nobsound Latest Mini 100W Subwoofer \/ Full Frequency Power Amplifier Mono Channel Audio TPA3116D2 Amp<\/a>","USD 25.99-34.44<\/em>\/piece","Nobsound T3 Plus Mini Vacuum Tube Preamp MM \/ MC Phono Stage for Turntables Pre-Amplifier Desktop Headphone Amp<\/a>","USD 58.49<\/em>\/piece","2021 Nobsound Mini TPA3116 Bluetooth 5.0 HiFi Power Amplifiers Stereo Home Audio Digital Sound Amplifier With Treble Bass<\/a>","USD 37.04-48.09<\/em>\/piece","Nobsound Bluetooth 5.0 Power Amplifier 320W Stereo 2.0 Channel Subwoofer Amp Treble Bass Adjust USB Lossless Music Player<\/a>","USD 66.94<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Audio Amplifier HiFi Class D Stereo Power Amp 100W*2 for Home Speakers<\/a>","USD 47.44-58.49<\/em>\/piece","Nobsound Hi-Fi G2 \/G2 pro Subwoofer \/ Full-Frequency Mono Channel Digital Power Amplifier 100W or 300W<\/a>","USD 45.49-66.94<\/em>\/piece","Nobsound HiFi Bluetooth 5.0 JAN 5654 Valve Tube Preamp Bass Preamplifier Stereo Audio Headphone Amplifier USB DAC APTX<\/a>","USD 90.99<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Amplifier Hifi Stereo Audio Receiver Power Amp 50W+50W Car Sound Amplifiers<\/a>","USD 19.49-29.89<\/em>\/piece","Features","Support Bluetooth\/3.5mm AUX\/MM phono inputs:","MM phono input, converts phono signal to line level signal and amplify it, with low-noise integrated circuits and high-quality components to ensure clear and clean sound.","Bluetooth and 3.5mm AUX inputs, amplify the low level audio signal and provide enough output power for passive speaker, greatly improve the sound quality.","Strong output power and special AUX output: use TI's amp IC TPA3221, each channel can output 100W(4\u03a9) and easily to drive all 3-8\u03a9 passive speakers, adds 3.5mm AUX output easy to connect another amplifier or active speaker \/ subwoofer to build multiple channel system and enjoy wonderful home theater experience.","With tone control to get more delicate sound: treble and bass knobs ( \u00b110dB ) are designed to adjust one's own preferable sound styles, presents music with rousing highs and deep lows, also convenient to adjust to match well with different types of music, provide wonderful listening experience.","Mini size but powerful and practical: compact design, provides HiFi sound for audiophiles even in smaller space at home or office, work perfectly with most home audio sources such as MM turnables, phone, TV, tablet, phone, projector, computer etc., very suitable for home or desktop audio system use.","Input priority: Bluetooth > 3.5mm AUX > MM phono input.","Default MM phono input, auto turn to AUX input when connect AUX cable, auto turn to Bluetooth input when Bluetooth is connected.","Parameters","Audio input: MM Phono\/Turntable \/ 3.5mm AUX \/ Bluetooth","Audio output: banana speaker jacks \/ 3.5mm AUX","Bluetooth version: 5.0","Max output power: 105W+105W (4\u03a9)","Matched speaker impedance: 2-8\u03a9","Frequency response: 20Hz-20KHz (\u00b13dB)","Input sensitivity: 0.775V    ","S\/N ratio: \u226595dB","THD: \u22640.05%(1KHZ 1W)","Treble \/ Bass range: \u00b110dB","Working voltage: DC 12-30V","Dimensions(W*D*H): 99*127*30mm \/ 3.90*5.00*1.18in","Net weight: 355g \/ 0.28lb","Package weight: 1.0kg \/ 2.20lb","Packing List","1*A-10L Amplifier","1*DC 24V Power Adapter","1*Bluetooth Antenna"]
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Nobsound 3-IN-3-OUT XLR Balanced / RCA Stereo Converter Audio Selector Box Passive Preamp For Home Amplifier

Item Code: 32884763063
Price: $ 93.99 $ 131.99
["Nobsound Latest Mini 100W Subwoofer \/ Full Frequency Power Amplifier Mono Channel Audio TPA3116D2 Amp<\/a>","USD 25.99-34.44<\/em>\/piece","Nobsound T3 Plus Mini Vacuum Tube Preamp MM \/ MC Phono Stage for Turntables Pre-Amplifier Desktop Headphone Amp<\/a>","USD 58.49<\/em>\/piece","2021 Nobsound Mini TPA3116 Bluetooth 5.0 HiFi Power Amplifiers Stereo Home Audio Digital Sound Amplifier With Treble Bass<\/a>","USD 37.04-48.09<\/em>\/piece","Nobsound Bluetooth 5.0 Power Amplifier 320W Stereo 2.0 Channel Subwoofer Amp Treble Bass Adjust USB Lossless Music Player<\/a>","USD 66.94<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Audio Amplifier HiFi Class D Stereo Power Amp 100W*2 for Home Speakers<\/a>","USD 47.44-58.49<\/em>\/piece","Nobsound Hi-Fi G2 \/G2 pro Subwoofer \/ Full-Frequency Mono Channel Digital Power Amplifier 100W or 300W<\/a>","USD 45.49-66.94<\/em>\/piece","Nobsound HiFi Bluetooth 5.0 JAN 5654 Valve Tube Preamp Bass Preamplifier Stereo Audio Headphone Amplifier USB DAC APTX<\/a>","USD 90.99<\/em>\/piece","Nobsound Mini Bluetooth 5.0 TPA3116 Digital Amplifier Hifi Stereo Audio Receiver Power Amp 50W+50W Car Sound Amplifiers<\/a>","USD 19.49-29.89<\/em>\/piece","ONE Little Bear"," (Model:MC3)","3 Ways XLR\/RCA input\/output switcher","Parameters:","\u00b7 MC3 is a 3-IN-3-OUT (XLR*2 RCA*1) passive stereo audio splitter andconverter, support convert XLR to RCA or RCA to XLR.","\u00b7 MC103 is designed for customers have several music equipment with XLR balanced output.and several power amplifier with XLR balanced or RCA input,It supports 2 stereo XLR + 1 stereo RCA inputs and 2 stereo XLR + 1 stereo RCA outputs. You can connect those equipment to MC3 and then to your amplifier.","\u00b7 With this device, you can conveniently switch among different sound sources or power amplifier and compare their sound performance ,or convert the signal to balanced or unbalanced. Then connect to most universal power amplifier which is just with Balanced or unbalanced input only.","\u00b7 Metal shell to effectively avoid external noise and guarantee high-quality signal transmission; NEUTRIK gold-plated XLR ports to ensure high reliability electric connection and minimize signal attenuation during its transmission","\u00b7 Passive audio splitter; There will be no impact on the sound quality; Switcher with silver-plated contacts to ensure its smoothness; HOT \/ COLD simultaneous switching mode; GND common terminal; Mini size; Can be easily placed","How to use?","1, Wire your player to the balanced(XLR) or unbalanced(RCA) INPUT interface, and the output interface wire to your power amplifiers","2,  Rotating the INPUT\/OUTPUT switch to select which player or power amplifier you need to use. Then you can compare the devices sound.","Features","High quality rotary switch","Easy to use and install","Hot-swappable (no need to reboot computer)","Ideal for small office or home audio system","1 * RCA input, 1 * RCA output, 2*XLR input,2* XLR output","Mini size: W150*D105*H68 mm, easy to install on your desk","Weight: 485g (0.6Kg with package)","Package Includes","1\u00d7 Audio Selector","1\u00d7 Manual","\"s-l1600\"s-l1600\"s-l1600\"s-l1600\"s-l1600"]
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AIYIMA TPA3116 Subwoofer Amplifier Board 2.1 HIfi High Power Stereo Amp DC12V-24V 2*50W+100W Bass Amplificador for Speaker DIY

Item Code: 32816531467
Price: $ 46.76
["Related Productions:<\/strong>","Description:<\/strong>","

1.This is a DC-powered","12-24V","power supply, using TI's","TPA3116D2<\/strong>","high-performance digital power amplifier chip as the core, one to do parallel bridged bass channel power amplification output, one to do left and right channel power amplification output.support","100W (bass channel) + 50W (left channel) + 50W (right channel) three-channel output.","2.Support external audio input interface, with preamplifier, bass crossover processing;","bass volume, bass frequency, left and right channel volume, treble, function control switch \/ total volume, 5 adjustment potentiometers.<\/strong>","

3.Wide working voltage, energy-saving design, efficiency up to 90%. You can use a good performance switching power supply, laptop switching power supply, you can also use a charging bottle, or car power supply, etc...

4.The board is a finished board that has been soldered and tested. Connect the speaker box according to the picture, connect the appropriate power supply, connect to the audio device to play, or connect the sound source input correctly.

The main Parameters:

","Size (L * W * H): 100 x 100 x 24mm,","excluding potentiometer and socket projection

","Operating voltage range: DC 12-24V","(current 3-4A, or 19-24V \/ 4-5A, such as high power requirements 20-24V \/ 8-9A above)

","Note that the DC no-load voltage should not be greater than 25.5V.<\/strong>","

Audio input sensitivity: 600-800mV

","Frequency response range: 20Hz-20KHz<\/strong>","

Speaker impedance:left and right channel speakers: 4-8 ohm,bass speaker impedance: 2-8 ohm

The output power is related to the supply voltage\/current, the speaker impedance, and the size of the audio input. When the power supply voltage\/current is sufficient, usually the power supply voltage is higher and the relative output power can be made larger. Speakers with different impedances have different output powers. Usually, the speaker impedance is smaller and the power is easier to achieve.

","Package included:<\/strong>","

1*amplifier board(power adapter is not included)","Product Questions<\/strong>","

","1. Amplifier board has current sound and noise during use<\/strong>","

Most of our amplifier board use DC power supply. The board itself does not produce current sound and noise.
The main causes of current acoustic noise are:
A, The power supply filter used is not good; the current sound is caused by wrong input by the power or audio input.
B, The input signal quality is poor; the output of the device connected to the input is improper, and the noise is caused by the abnormal input of the audio source.
C, The input cable is of poor quality; the line is in poor connect; the wiring is damaged; the wiring is suspended
D, The input connection has other playback devices, and some devices share the power supply to cause noise.

","2. No sound output, no sound in 1 channel?<\/strong>","

A, The speaker is broken, or the speaker cable is not connect well.
B, The input cable is not in good connect; the wiring is damaged; the output of the device connected to the input is improper.


","3. Volume broken and breaking sound when turn loud?<\/strong>","

A, The power input is insufficient, confirm the wiring is correct first, and the supply current is sufficient,
B, The speaker itself has poor performance or damage, and the speaker power is too small or too large.
C, left and right channel speakers (+) (-) output are independent, can not be connected to each other

","4. Speaker broken sound when subwoofer amplifier volume turn loud ?<\/strong>","

A, The power input is insufficient, first confirm the wiring is correct, the supply current is enough
B, Whether the power of the speaker itself is too large or too small, or the bass performance of the speaker itself is poor; the structure of the speaker box; these abnormalities will cause breaks.


","5.The volume power is not enough?<\/strong>","

Power and power supply voltage, the amplitude of the sound source signal, the size of the speaker impedance are all related, any kind of deficiency will affect the power

","6. Will the amplifier be burnt?<\/strong>","

A, The positive and negative poles of the power supply are connected reversely; the power supply voltage is too high, exceeding the limit operating voltage of the board
B. If the board requires a DC power supply, it is not allowed to connect directly the AC transformer power supply (this can be rectified and converted to DC power before it can be used)
C. To confirm that the wiring is correct, then connect with the power supply. The wrong line connected or the short circuit both will cause damage to key parts."]

FET MOSFET Triode HDAM Double OP AMP For HiEND Audio Amplifier preamplifier speaker system Replace NE5532 LME49720 MUS02 OPA2604

Item Code: 32750741739
Price: $ 45.17 $ 47.86
["Single op amp link :","Op amp characteristics:
1 by comparing the open-loop gain, and therefore do not need to do a deep negative feedback amplifier, sound more natural and delicate
2 amp power can be higher, can work at the maximum + - 28V, more dynamic (+ - 5V can work well)
3 greater output current, general amplifier output current of about 40MA, the maximum output current of 100MA operational amplifier
Operational height is 30MM
Voltage range: + - 5V to + - 22V
Quiescent current: approximately 30MA
Frequency response: 0-100KHZ"]
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2021 Lastest Nobsound TPA3116 Bluetooth 5.0 Mini Digital Amplifier Stereo HiFi Home Audio Power Amp Audio Receiver USB DAC 50W×2

Item Code: 32827060784
Price: $ 72.49 $ 89.99
["Nobsound NS-10G Bluetooth 5.0 Power Amplifier 50W+50W \/ USB Sound Card<\/strong>","Hi-Fi SoundPowerful 50W+50WSuper Bass<\/strong>","MiniBluetooth 5.0+EDR5 Colors<\/strong>","AUX INUSB Sound CardTPA3116 \u00d72<\/strong>","Fashion CuteFast ShippingHighly Cost-effective","Features:<\/strong>","With AUX \/ USB \/ Bluetooth audio input, Bluetooth 5.0 input achieves much faster and more stable transmission, USB input has no need for driver, plug-and-play; compatible with most home audio devices such as ipod, phone, tablet, computer, CD player and so on.","Max output power can reach 100W (50W * 2) with the upgraded chip TPA3116, HiFi clear sound, no audible noise even at high power output.","Bass button is specially designed to amplify bass effects, providing shocking listening experience just like in the cinema.","Mini size with exquisite appearance, aluminum case looks attractive and durable, very suitable for home and desktop audio system use.","Parameters:<\/strong>","Bluetooth standard protocol: Bluetooth 5.0 + EDR","Rated power: 50W \u00d7 2","Input Interface: Bluetooth, USB, AUX","Operating mode:button","Amplifier chip: American TI Texas Instruments TPA3116","Power input: DC9V-24V \/ 3A or above","Dimensions(W*D*H) (Excluding protrusions): 80*53*22mm (3.15*2.09*0.87 in)","Net Weight: 105 grams\/ 0.23lb","Package Weight: 300g \/ 0.66lb","Packing List:<\/strong>","1\u00d7 NS-10G Amplifier","1\u00d7 3.5mm Audio Cable","1\u00d7 RCA cable","1\u00d7 USB Cable","1\u00d7Manual","1\u00d7Power adapter  (","Optional purchase)<\/strong>"]
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100% Original JRC muses01 muses 01operational amplifier of Japan double op amp IC chip

Item Code: 32640839720
Price: $ 54.11 $ 73.86
["Manufacturer: NJR
RoHS: meets RoHS details
Gain bandwidth generation: 3.3 MHz
Number of channels: 2 Channel
Common mode rejection ratio - Minimum: 60 dB
Input voltage: 0.8 mV
Input bias current - Max: 800 pA
Operating supply voltage: 16 V
Installation style: Through Hole
Package \/ Case: DIP-8
Conversion speed: 12 V\/us
Maximum operating temperature: + 85 C
Package: Tube
Amplifier type: Dual Operational Amplifier
Input type: JFET
Minimum operating temperature: - 40 C
Series: MUSES 01
Factory packing: 10
Supply current: 8.5 mA
Technology: JFET"]
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3000W 15A Audio Noise AC Power Filter Amplifier TV CD EU UK US AU Standard power Socket Outlets AC 110V-250V

Item Code: 1005003444348221
Price: $ 96.12 $ 121.9
["3000W 15A Audio Noise AC Power Filter Amplifier DAC TV CD Conditioner Power Purifier Surge Protection EU Outlets Aluminum case","Note",": It can work :AC 100V-250V .The power cable have EU AU US British Standard.","If you want buy HIFI power cable. You can click on the picture to enter the purchase link","Parameters:<\/strong>","1.  Rated voltage: AC100-250V\/60-50HZ
2.  Maximum load power: 3000W
3.  Maximum current: 15A
","Packing list:","Packing list:","power filter * 1pc","Power cable * 1pc","The 2-level EMI filter circuit design can not only effectively eliminate and reduce the interference and noise in the power grid, but also make the music signal transmission of HI FI and AV sound system faster and the low-frequency transient response of music better. In AV and hi fi music, it has the characteristics of wide listening frequency response, good sound field level, rich detail performance and low sound pollution; In the viewing and listening system, you can enhance the ability of disc reading and analysis, make the three-dimensional sense of hierarchy in the image better, reduce color staining (improve color purity) and remove background noise spots (improve clarity), so that you can get good audio-visual effects!","3000W strong load power, coupled with its dual inductor high current filtering, can easily drive all kinds of hifi, AV equipment, 27 to 50 inch large color TV, three gun projection, LCD rear projection, high-power power amplifier and various cinema equipment.","The common mode and differential mode AC power filter made of imported high-quality components has the functions of surge absorption, current overload automatic breaking protection and so on.","The internal material of the filter is exquisite: it is connected with high-quality copper wire, and the fever grade anti-interference capacitor, fever magnetic ring and other fever components shielded in the metal cover","15A overload automatic short circuit protector.","4-digit high-grade gold-plated socket (product plug), 2-digit high-quality imported American standard double spring socket.","The filter is equipped with 6 output sockets, each socket has filtering and anti-interference function, and is controlled by double on-off switch."]
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USB IIS Digital Interface DAC Decoder Board Support DSD512 32bit 384K I2S DSD Output audio amplifier Decoder

Item Code: 32874113831
Price: $ 46.04 $ 49.64
["data:http:\/\/amanero.com

Driver:http:\/\/amanero.com\/drivers.htm","Now the Chip is","ATSAM3U1C","

Design features: Double thick gold plating coating! Better stability! Italy with the program regulator IC design, Korea's chip capacitors!

About the design:
Use the original original design to ensure the integrity and reliability of the signal, authorization procedures, and military A-level PCB production, double-sided gold sinking process! Professional program programmer, each board listens for 1 hour before shipping to ensure stable and reliable board compatibility.

About the driver:

Amanero adopts ARM+CPLD architecture USB-2.0 high-speed transmission 480Mb\/S, asynchronous USB to IIS PCM supports 44.1KHz\/48KHz\/88.2KHz\/96KHz\/176.2KHz\/192KHz\/352.4KHz\/384KHz, DSD supports DSD64\/DSD128\/DSD256\/DSD512 .","Professional audio architecture, ARM V7M responsible for the coordination of USB data processing, CPLD alone to complete the clock processing and sample reconstruction and IIS data processing. Has a more reasonable and efficient audio quality.","The music architecture and processing methods give you surprises when listening to music using the USB interface. Supports Apple MAC, linux, Raspberry Pi, and OTG-enabled Android 4.4 and above systems are all free drivers","High speed transmission 480Mb\/S,","asynchronous USB to IIS","PCM support 44.1KHz\/48KHz\/88.2KHz\/96KHz\/176.2KHz\/192KHz\/352.4KHz\/384KHz,","DSD supports DSD64\/DSD128\/DSD256\/DSD512","What is a digital interface?

The digital interface is the digital audio interface. The input is generally connected to a computer, and the audio data is transmitted via USB2.0. This is several levels higher than the computer's own sound card. It is usually used for professional audio digital processing technology. Output I2S signal can easily dock various DACs for easy use"]
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ZK-1002T/1602T TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 2*100W 2.0 Channel High Power Audio Stereo Amplifier Board AMP

Item Code: 4001030255374
Price: $ 70.09 $ 75.17
["Question and answer:
\n
\n1. How to choose a power supply?
\n
\nThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.
\n
\nIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality.
\n
\n
\n2. How to choose a speaker?
\n
\nCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.
\n
\nIf you are a 50W-100w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.The speaker power is not recommended to exceed 100W, otherwise the sound quality will be affected.
\n
\n
\n3. Introduction of audio input mode
\n
\nThis audio amplifier module has two audio input modes: one is bluetooth input and the other is AUX input. Bluetooth mode is preferred.Bluetooth can be connected in either mode.As long as the bluetooth connection is successful is bluetooth mode, and bluetooth mode support automatic connection.AUX insertion is AUX mode when bluetooth is connectionless.It is important to make sure that the bluetooth connection of this module has been disconnected when using AUX mode.
\n
\n4. How to adjust the bass and high pitch?
\n
\nThe BASS potentiometer in the middle is to control the BASS, the right BASS is enhanced, the left BASS is attenuated.When the potentiometer is in the middle position, the bass is neither enhanced nor attenuated.
\n
\nThe TREBLE potentiometer on the left controls the TREBLE. the right TREBLE enhanced and the left TREBLE attenuated.When the potentiometer is in the middle position, it does not increase or decrease the treble.
\n
\nNote when adjusting treble and bass: when the treble or bass right rotation is adjusted to the maximum, if the sound is distorted, it means that the treble or bass  gain is too large. It is necessary to turn the treble or bass potentiometer to the left to reduce the gain or turn the VOLUME potentiometer to the left to reduce the total volume.
\n
\n5. When the sound becomes louder, the phenomenon of turbid sound appears.
\n
\nThe sound is distorted. Please change the adapter power supply with a higher voltage rating.
\n
\n6. After the sound becomes louder, the sound is stuck.
\n
\nThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.
\n
\nOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation.
\n
\n7. What are the factors related to the sound quality?
\n
\nSound quality is not only related to the amplifier module, but also to the sound source and the entire sound system.Basically every link of the sound system will affect the sound quality, among which the main link is the audio transmission line, audio power supply, tone circuit, amplifier circuit, speaker and the surrounding environment.Sound quality is best only when the sound source, amplifier module and speaker are matched."]
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diy kits 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer

Item Code: 32781771088
Price: $ 39.55 $ 41.89
["Descriptions:
\n\t\t100%Brand New and High Quality
\n\t\tNote: This is Diy Kits.you need do it yourself.
\n\t\tFeature:
\n\t\t1.SIZE: 77MM * 75MM * 57MM
\n\t\t2.Power input: AC 12V 0.8A 5.5*2.5 plug
\n\t\t3.Channle:2.0 stereo
\n\t\t4.Potentiometer Role: Volume adjustment + Power Switch
\n\t\t 
\n\t\tSpecification:
\n\t\tFE-6J1-2 fever tube pre-amp board is the circuit schematic design imitation crew Music fax X-10D,to be rational optimization,more stable performance than the original machine,tube play 10% increase. This board uses a single 12V AC input,the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage.
\n\t\t 
\n\t\tPower works: an open power tube filament heating is started,when the boost from the zero-voltage start boosting hot filament tube,etc.,also happens to boost boosting finish,so this is the same with the guts rectification,8*470UF the capacitor filter very clean,good power supply system will not have a hum,the filament is 12V DC power supply,need two filament tube is connected in series with a DC filament also in order to reduce the noise.
\n\t\t
\n\t\t
\n\t\tpackage include:
\n\t\t
\n\t\t1pc 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer
\n\t\tdiy kits<\/strong>","About Payment","1.- Please make sure your payment account is available before you bid the item.<\/strong>","2.- All payments should be cleared within 7days after you receive the item. If you really have difficulty in paying the item, please contact us firstly, we will help to solve it.<\/strong>","3.- If you have any special request about the details of item, please leave a note in your order.<\/strong>","A large number of purchasing pls contact us ,will give you a best price"," <\/strong>","About Warranty","About Shipment"," ","About Feedback"," ","1.- your feedback is very important to our development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. Thanks a lot for your time.<\/strong>","2.- Our program will leave back the same feedback to you after your positive feedback.<\/strong>","3.- Please contact us before you leave a neutral or negative feedback, we will try our best to solve the problems.<\/strong>"]
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BRZHIFI HiFi TPA3255 Audiophile Bluetooth 5.0 Digital Power Amplifier 300W+300W LDAC Stereo Audio Desktop Home Amplifier

Item Code: 1005003182588442
Price: $ 126.9 $ 189.67
["The Bluetooth pin code is: 0123 or 0000","Features:<\/strong>","This product is designed for the most discerning and feverish musicians. It integrates the current very low distortion TPA3255 power module and the Bluetooth decoding module QCC5125 that supports LDAC and APTX, and integrates the PCM5102A high-end decoding chip. So the sound feature is: the low frequency is rich, the vocals are warm, and the high frequency penetration is very good. And with 2 high and low bass adjustment, it is very convenient to use.","Technical Specifications:<\/strong>","Impedance: 4-8R
PCB Size: 150*95MM","Product Size: 113*190*37MM
Channels: 2
Output power: 300W+300W
Net weight: 0.5KG
Amplifier type: HIFI amplifier
Rated voltage: 19-40V","Inputs: Bluetooth and 3.5 mm cable","Package Included:<\/strong>","1 \u00d7 Digital Amplifier"," ","(No power cord and other signal cables)"]
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BRZHIFI HIFI Full Balanced Remote Control Stereo Power Amplifier APTX-HD Upgraded Home Class AB Bluetooth-compatible Amp CSR8675

Item Code: 1005002959398206
Price: $ 474.2 $ 483.45
["Fully balanced structure design, greatly reduces the distortion caused by signal transmission.","Support aptx-HD high-definition decoding technology, restore CD-level high-fidelity stereo sound quality.","CSR8675 Bluetooth, really lossless experience.","Support wireless remote control and realize lazy mode","    Description    <\/strong>","

Equipped with CSR8675 Bluetooth chip: adopts American 5.0 Bluetooth chip, supports SBC, AAC, APTX, APTX-HD protocol format, and APTX-HD is up to 24bit\/48khz

JRC-NJW1194 Front level volume control, high and low tone adjustment

Professional custom non-breakpoint iron core + Japan imported oxygen-free copper wire winding

Power amplifier IC: Sanken SK18752*4 balanced working voltage 54V

Bluetooth IC: CSR8675 supports AAC\/SBC\/APTX\/APTX-HD

Operational amplifier IC: 5532*5 5534*2

Power cow: 150W customized ring cow<\/strong>","If Bluetooth requires a password, the password is 0123","  Parameter  <\/strong>","Volume IC: JRC-NJW1194 high and low pitch \u00b110dB
Frequency response range: 18~20kHz
Input interface: XLR, RCA, BT
THD+N: 0.001%
Signal to noise ratio: 102dB
Channel separation: 112dB
Output power: 70Wx2(4\u03a9)\/45Wx2(8\u03a9)
Standby power:<3W
Product size: 273x70x232mm (WxHxD)","Packing list"]
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BRZHIFI Audio Clone Quad 405 Classic Power Amplifier Assembled and Tested Board For Audiophile DIY Amp

Item Code: 1005003380277019
Price: $ 85.99 $ 135.4
["This is a assembled and tested board, 99% base on Quad 405 circuit, metal transistor is MJ15024G, Very suitable for DIY users, Save your time and reduce your DIY risks.","Working voltage range: DC30V-50V.","Maximum output power: 100W (8ohm DC50V). The recommended voltage is DC36V.","Net weight: 0.4kg (1pair).","Weight after packing: 0.7kg (1pair).","Users who need the finished machine can click the following picture."]
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AIYIMA 2.1 Digital Subwoofer SMD Integrated Amplifier Audio Board Independent 2.0 Channel Output Home Sound Speaker Amplifier

Item Code: 32719362945
Price: $ 53.55 $ 76.6
["2.1 Digital Subwoofer SMD Integrated amplifier Board Independent 2.0 Channel Output Regionalization Functional Amplifier Board ","This item supports ","AliExpress Standard Shipping"," and ","AliExpress Premium Shipping",".","official logistics service","AliExpress platform","Advanced SMD production process,","Regional and functional design.","With a heat sink,","With independent 2.0 channel output.","Easily achieve 2.1-fidelity speakers.","Power: 60W + 30W * 2","Input voltage: DC 15-22V","Packing List :<\/strong>","1pcs","Note: this is 2.1 Amplifier board for two full range tweeters and one bass"]
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Mono or Full Frequency HIFI TPA3255 600W Digital Power Audio Amplifier Board Heavy Bass Subwoofer Amplifier

Item Code: 1005001596305459
Price: $ 77.8 $ 84.24
["TPA3255 is a high-performance class D power amplifier, it has class D efficiency and can bring true high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (UHD). This technology allows the device to maintain ultra-low distortion throughout the audio frequency band while exhibiting wonderful sound quality.
\n
\nn Use original TPA3255 chip
\n
\nn The main filter electrolytic capacitor uses Panasonic gold letter 1200UF\/50V to ensure strong and continuous power support.
\n
\nn Use professional high-current inductors to ensure clean and powerful sound.
\n
\nn Onboard subwoofer\/full frequency switch, easy to use
\n
\n 
\nThe main parameters:
\n
\nWorking method: Class D
\n
\n Working voltage: DC30V-48V
\n
\n Size: 150*75*35mm
\n
\nNet weight: 0.2KG
\n
\nBass cutoff frequency 95HZ
\n
\nTotal output power when the total harmonic distortion + noise (THD+N) is 1% 600W\/2\u03a9"]
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800W EU BT-309A Audio Amplifier Amplificador Bluetooth-Compatible HIFI Stereo AMP USB SD FM Car Home Power With Remote Control

Item Code: 1005003016176965
Price: $ 82.51 $ 127.64
["Description:
","-Mini HIFI digital bluetooth audio power amplifier.","-SD Card, U disk, MP3 format play, support bluetooth wireless connection.","-Two microphone input slot, karaoke system in your home or in car.","-Low distortion supplies a clearer, stronger and more powerful sound.","-With Remote control function.","Specifications:
","Specifications:","Color: Black","Model: BT-309A","Input voltage: AC 220V\/ DC12V(in car)","Plug: EU plug","bluetooth: Support","Output power: 100W 100W","Peak power:400W 400W","Channel: 2 CH","Load impedance: 4-16\u03a9","SNR: >88 db","FM frequency: 87.5-108MHz","Distoration rate: 0.05%","Frequency: 10Hz-20KHz","Sensitivity: 0.25mV-220mV","RC power supply: CR2052 battery(built-in)","Size: Approx. 20x20.5x5.5cm\/ 7.87x8.07x2.17''","Package Included:
","1 x Audio Amplifier","1 x Remote Control","1 x Manual","Notes:
","Note:Before Your Order,pls check your voltage !!!","It's suit for AC220V \/ DC12V(in Car or Moto)"]
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Wireless Bluetooth compatibility MINI Amplifier 2CH HIFI Audio HIFI Stereo Power AMP USB FM Radio Car Home with Remote Control

Item Code: 1005003787970639
Price: $ 77.44
["Wireless Bluetooth compatibility MINI Amplifier 2CH HIFI Audio HIFI Stereo Power AMP USB FM Radio Car Home with Remote Control<\/strong>","
\n
\n
\n
\nFeatures:
\n1.The main volume, the high tone adjustment and the bass adjustment are all adjusted by the analog components to upgrade the mini mixer, allowing you to play the music world and give you the real HIFI sound effect.
\n2.This machine has a USB interface, and a built-in MP3 pointer is used to download the music you like to the disk and insert it into the machine, and instantly plug and play without waiting.
\n3.Full function infrared control, convenient man-machine dialogue, make its function operation simple and easy to understand, let you do whatever you want.
\n4.It can support many people to sing at the same time. Let you and your friends enjoy the fun of singing.
\n5.Wireless bluetooth, easy to connect smart phones, tablet computers and other bluetooth devices, USB interface, that is, broadcast and use, and enjoy high quality music.
\n
\nSpecification:
\nRated Power: 80W + 80W
\npeak Power: 300W + 300W
\nStandard Impedance: 4 - 16 ohms
\nFrequency Response: 20KH - 20KHZ(\u00b13DB)
\nSignal-to-noise Ratio: \u2265 90DB (A power)
\nTotal Harmonic Distortion: \u2264 0.5% (normal working conditions)
\nSignal Input Sensitivity: 200MV(\u00b130MV)
\nMIC Input Sensitivity: 9MV(\u00b12MV)
\nRecording Level Output: \u22481V
\nAuxiliary Level Output: \u22481V
\nVoltage: 12V 110V\/12V 220V(Optional)
\n
\nPackage Included:
\n1 X Home\/Car Amplifier
\n1 X Remote Control(Not Included Battery)
\n1 X User's Manual"]

2*100W Bluetooth 5.0 Digital Power Amplifier Board AUX Speaker 2.0 CH Stereo Home Music Wireless Module Audio AMP

Item Code: 1005003240554833
Price: $ 37.07 $ 39.72
["USB File Supported FAT32 , 32G MAX <\/strong>"]
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AK35 380 800W Home Digital Amplifiers Audio 110-240V Bass Audio Power bluetooth Amplifier Hifi FM Auto Music Subwoofer Speakers

Item Code: 1005002589560502
Price: $ 79.9 $ 97
["{infomodule}","Note :<\/strong>","1.Please carefully browse the ","functions ","of ","different products"," on the picture before buying . Thanks !!!","2.The product needs to","purchase","a","12V 2A adapter<\/strong>","to work .","AK35 <\/strong>","(With bluetooth \/ Remote control\/ FM\/","Power cable",")","Features:<\/strong>","-Mini HIFI digital bluetooth audio power amplifier.
-TF Card, AUX, U disk, MP3 format play, support bluetooth wireless connection.
-Supports FM stereo radio.
-With treble, bass, and volume control, very easy to use.
-Low distortion supplies a clearer, stronger and more powerful sound.
-Two main channel output.
-With Remote control function.
-DC\/ AC power in, Suitable foe home or your car.
-Upgraded high power 90W + 90W
-It can switch voltage automatically
-Small heat, light weight","Specifications:<\/strong>","1.Colo: Black
2.Model:AK35
3.Voltage: 110V-220V
4.Impedance: 4-16 \u03a9
5.Plug:","EU plug\/US plug<\/strong>","\uff08Note: We will provide adapters according to the country!!\uff09<\/strong>","6.bluetooth: Support
7.RMS power: 30Wx2
8.Peak power: 90W x2
9.Load impedance: 4-16\u03a9
10.Channel: 2.0
11.SNR: 85 db
12.FM Frequency: 87.5-108MHz
13.Distoration rate: 0.05%
14.Frequency: 10Hz-20KHz
15.Size: Approx. 19x12.5x4.5cm\/ 7.48x4.92x1.77''","Package Included:<\/strong>","1 x Audio Stereo Amplifier
1 x Remote Control","AK170:(No bluetooth \/ No Function button \/ No Remote control\/No","Power cable",")","Features:<\/strong>","- Mini HIFI audio power amplifier.
- Aluminum Alloy Body, thick, feel is also very good.
- Large knobs are designed with blue LED lights to make the products more beautiful.
- Low distortion supplies a clearer, stronger and more powerful sound.
- Two main channel output, Left and right channel outputs are interfaces for speakers.","Specifications:<\/strong>","Model: AK170
Color: Balck
Material: Aluminum Alloy
Input voltage: DC 12V
RMS power: 20W+20W
Max power: 200W+200W
Channel: 2CH
Load impedance: 4-16\u03a9
SNR: >90 db
Frequency: 20Hz-20KHz
Distortion rate: 0.01%
Size: 12.5*7.5*4cm \/ 7.1x5.4x2.2in (L*W*H)","Package Included:<\/strong>","1 x Power Amplifier","(Not included power cable)","1 x User Manual","AK380:","(","Support bluetooth \/Remote control FM\/SD Card\/ No P","ower adapter",")","Features:<\/strong>","-Mini HIFI digital bluetooth audio power amplifier.
- Aluminum alloy body, durable, the body is made of aluminum alloy once, the anode surface treatment, the overall atmospheres, thick, feel is also very good.
-for SD Card, U disk, AUX input, MP3 format play, support bluetooth wireless connection.
-Supports FM stereo radio.
-Low distortion supplies a clearer, stronger and more powerful sound.
-With Remote control function.","Specifications\uff1a<\/strong>","--Amplifier type: hifi power amplifier
--Color: Black
--Size: 155x85x45mm\/6.1inx3.3inx1.7in
--Rated voltage: 12V
--","RMS power<\/strong>",": 40W+40W
--","Max power<\/strong>",": 400W+400W
--Rated frequency: 20-20KHz
--Resolution: 47K
--Distortion rate: 0.1
--SNR: 90dB
--Impedance: 4-16 \u03a9
--Power amplifier type: hifi amplifier
--Material: aluminum alloy
--Interface type: clip
--Receiving mode; audio input
--Weight: 0.35 (kg)","Package Included:<\/strong>","1 x Power Amplifier
1 x Remote Control","(Notice:this price dont include power supply)","S-299 1600W 4.1 Channel <\/strong>","(","Support bluetooth \/","Remote control\/","SD Card\/With P","ower supply",")","Features:<\/strong>","- Mini HIFI digital bluetooth audio power amplifier.
- Built-in LCD display, with backlight function.
- SD Card, U disk, AUX, MP3 format play, support bluetooth wireless connection.
- 4.1 channel output, can connect 2 pairs of speakers below 8 inches and 1 subwoofer.
- With treble, bass, and volume control, very easy to use.
- Low distortion supplies a clearer, stronger and more powerful sound.
- Two main channel output.
- With Remote control function.
- AC\/DC power in, Suitable for your home and car.","Specifications:<\/strong>","Channel: 4.1CH
Rated Power: 40Wx4
Max Power: 400Wx4
Voltage: DC12V 3-5A \/ AC 110-240V","\uff08Note: We will provide adapters according to the country!!\uff09<\/strong>","SNR: \u2265 80dB
Impedance: 4-8\u03a9
Distortion rate: 0.4%
Frequency Range: 20-20KHz
Size: 17.6*14.7*4.3cm\/6.7x5.8x1.7in","Package Includeds:<\/strong>","1 x Power Amplifier
1 x Power Adapter (EU Plug)
1 x Remote Control
1 x User Manual","Notes:<\/strong>","- Please allow 1-3cm difference due to manual measurement.
- Due to light and screen difference, the item's color may be slightly different from the pictures."]
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TJ Fullmusic Vacuum Tube For 12AX7 ECC83 HIFI Audio HiFi Tube Replacement Preamplifier Amplifier

Item Code: 688125382
Price: $ 129.5
["BRAND NEW VACUUM TUBE AUDIO TUBE REPLACEMENT  PREAMPLIFIER","
","Description:<\/strong>","Model Number: 12AX7, replace ECC83","Gold Plated Pins with Original Blue Paper Box","Heater Voltage: 12.6V","Heater Current: 0.15A","Plate Voltage: 250V","Grid Voltage: -2V","Plate Resistance: 62.50 Kohm","Plate Current: 1.2mA","Amplification Factor: 100","
"]

Aluminum Chassis DIY HiFi Audio Amplifier Housing Preamp Case Width 430 Height 90 Depth 300 4309

Item Code: 1005001543245063
Price: $ 255.91 $ 260.36
["Product Details:","External dimensions: width 430MM * depth 308MM * height 92MM

Internal dimensions: width 400MM * depth 294MM * height 84MM","Front panel thickness: 8mm","Rear panel thickness: 3mm","Upper and lower cover thickness: 3mm","Package Included:","1 \u00d7 Chassis","Power outlet","4 \u00d7 Rubber feet","\"4309-1\"\"4309-2\""]
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6800W 4 Channel Car Amplifiers Subwoofer Speaker Audio Amplifier Vehicle Subwoofer Bass Amplifier Enclosure Auto Sound Car Audio

Item Code: 1005002658636373
Price:
["Features:<\/strong>","- 6800w powerful power, giving you a wonderful in-car entertainment.
- Can connect to 4 speakers, meets the need of most users.
- Slim design, simple and generous, in line with modern aesthetics, and easy to install.
- Using high-quality electronic components, good stability, support high temperature working.
- It adopts aluminum alloy heat dissipation hole design, which has wider contact with air and faster heat dissipation.
- Multiple circuit protection such as short circuit, overheating, overvoltage, undervoltage, DC output, etc.
- Strong S wide working voltage (DC 10V~16V), wider applicability, suitable for your car.","Specifications:<\/strong>","Product Name: Car Amplifier
Type: Class A\/B
Material: Aluminium Alloy
Color: Black
Channel: 4
Voltage: DC 12V
SNR: 200mV-8V
Sensitivity: >90dB
Peak Power Output: 6800W
Signal-to-Noise Ratio(SNR): >90dB
Total Harmonic Distortion: \uff1c0.15%
Frequency Response: 10Hz-30KHz
Size: 34*21*4.5cm \/ 13.4x8.3x1.8in","Package Included:<\/strong>","1 x 6800W 4 Channel Car Amplifier
4 x Screw Accessory
1 x Fuse
1 x Instruction","Note:<\/strong>","- Please allow 0.5-1 inch difference due to manual measurement. 1inch=2.54cm)","\/ About service \/","On- Time Delivery","Longer Protection","Returns Extra","Guaranteed Quality","If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problem and provide you with the best customer services."]

Lyele Audio ECC82 Vacuum Tube Preamp Hifi Sound Preamplifier NE5532 Treble Midrange Bass Adjustment High End Sound Amplifier

Item Code: 1005002303679285
Price: $ 490 $ 501.83
["Lyele Audio PASS 1.7 Sound Preamplifier FET Hifi Class A Perth Preamp Balanced\/unbalanced Input and Output High End Audio Amp<\/a>","USD 518.30<\/em>\/piece","Lyele Audio MB6010 Balanced Pre-amp Hifi Audio Amplifier High Power 60W*2 7 Times Amplification Preamplifier with Remote Control<\/a>","USD 564.60<\/em>\/piece","Lyele Audio ECC82 Vacuum Tube Preamp Hifi Sound Preamplifier NE5532 Treble Midrange Bass Adjustment High End Sound Amplifier<\/a>","USD 224.74<\/em>\/piece","Goldmund G27+ Circuit Sound Preamplifier Hifi Class A Amplifier 8 Times Magnification Audio Preamplifier Bluetooth 5.0 2 (2.0)<\/a>","USD 757.80<\/em>\/piece","Accuphase C200 Sound Preamplifier Hifi Amplifier 8 Times Magnification Audio Preamplifier Class A Double Transformer AC 110V\/220<\/a>","USD 701.00<\/em>\/piece","Lyele Audio Hifi Tube Preamplifier Fully Balanced Remote Control Preamp High End Audio Amp 4 Input and Output<\/a>","USD 1242.60<\/em>\/piece","Lyele Audio Preamp Hifi Balanced Preamp Sound Field Width! High Resolution! Amplifier Audio Preamplifier 115v 230v<\/a>","USD 282.00<\/em>\/piece","Lyele Audio Mark Levinson Jc2 Sound Preamplifier Classic FET Audiophile Preamp Balanced Input Selectable High End Audio Home Amp<\/a>","USD 259.80-355.09<\/em>\/piece","Lyele Audio ECC82 Vacuum Tube Preamp Hifi Sound Preamplifier NE5532 Treble Midrange Bass Adjustment High End Sound Amplifier","Product description:<\/strong>","This product adopts the technology-leading \"absolute linear audio amplification\" circuit, uses nonlinear components to amplify, and then distorts the distorted signal again. Excellent, emotionally charged music","Reasonable power supply design, the power supply part is installed in an independent section, using a ring pure copper power transformer to reduce electromagnetic interference and extremely low noise","ECC83 and ECC82 are used for amplification, 6Z4 is used for rectification, and the tone part uses the classic dual op-amp NE5532","Using German ERO fever-grade capacitors as coupling capacitors, using Philips Japan ELAN electrolysis as filtering, good extension at both ends, excellent high and low frequency performance, deeper low frequency dive, flexible, thick and stable intermediate frequency, and slender and elegant high frequency","Parameter:<\/strong>","Tubes: ECC83*1 ECC82*1 6Z4*1","Gain: \u226518db","Input impedance: \u226539K\u03a9","Output impedance: \u2264100\u03a9","Distortion: \u22640.05% (0.5V input)","Frequency corresponding: 5Hz-50kHz(-db)","SNR:\u226595dB","Size:430*270*70mm"]
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Fosi Audio T10 Stereo Sound Amp 100W Audio Wifi Bluetooth Power Amplifier With Wi-Fi 2.4G U-disk APP Remote Control

Item Code: 1005003228842053
Price: $ 186.53 $ 252.19
["Fosi Audio T10 Stereo Sound Amp 100W Audio Wifi Bluetooth Power Amplifier With Wi-Fi 2.4G U-disk APP Remote Control","Features:","The T10 amplifier is a versatile audio amplifier with integrated Wi-Fi 2.4G, Bluetooth 5.0, AUX IN, USB stick playback and more. You can easily install and create a smart audio system with the T10 amplifier, supporting AirPlay, DLNA, Tuneln, iHeartRadio, Deezer, HIMALAYA, Spotify, Tidal, Napster, Qobuz and local playback. Add the T10 amplifier to your current home stereo system and Wi-Fi network, then stream your favourite audio via Wi-Fi and Airplay for easy Wi-Fi multi-room control!","Highlight:","Model: T10","THD: \u2264 0.01%","SNR: \u2265 115dB","Bluetooth: 5.0","Bluetooth Name: \"Fosi Audio T10\"","Wi-Fi Name: start with \"Fosi Audio T10\"","Power Supply: 24V 4.5A","Output: 100W + 100W @3\u03a9","Terminating Impedance: 2\u03a9 - 8\u03a9","Frequency Range: 20Hz - 20kHz (\u00b11 dB)","Bluetooth Transmission Distance: 10M","Input Mode: Wi-Fi + Bluetooth + U-Disk + AUX + LAN IN","Output Mode: Passive Speakers + PRE-OUT","Package Include:","*Fosi Audio T10 *1","*Remote Control *1","*Antenna *2","*DC 24V Power Supply *1","*User Manual *1","1. About Payment","We accept payment via Alipay, Paypal. All major credit cards are accepted through secure payment processor ESCROW.","2. About Shipment","Worldwide shipping (Except some countries and APO\/FPO);","The following regions cannot deliver:","Spain: postcodes starting with 51, 52, 35, 38 or 07.","If the consignee address is belong to the above areas, please do not place order, the parcel cannot be delivered. thank you.","If you have not received your shipment within 30-60 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!","3. About Return & Refund","If you are not satisfied with the product you received, please contact us first before open a dispute. We will respond and help to solve the problem once we receive your message.","4. About feedback","Our success depends on your satisfaction, so your feedback is very important to us. If you are satisfied with our products and services, please leave us positive feedback. please contact us before leaving any negative or neutral feedback, we will work with you to solver any problems.","5. Our Service","Warranty: We cover 18 Month warranty for all our products since shipment day. (excluding items damaged and\/or misused after receipt). WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.","For all your inquiries about our products, we will reply you in detail within 24 hours.","We have well-trained and professional sales & after-sale services persons who can speak English fluently.","We offer dropshipping. please contact us if you are interested in dropshipping."]
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Douk Audio HiFi Bluetooth 5.0 Digital Power Amplifier Bass Audio Amp w/Dual Antenna Long Range 130W+130W APTX-HD

Item Code: 1005002609921904
Price: $ 157.49 $ 229.99
["Douk Audio U2 Mini XMOS XU208 USB to Coaxial \/Optical \/12S Converter Digital Interface DSD256 PCM384K<\/a>","USD 51.99<\/em>\/piece","Douk Audio M1 PRO HiFi Bluetooth 5.0 Stereo TDA7498E Power Amplifier Wireless Receiver USB Player Subwoofer Amp 160W*2<\/a>","USD 66.94<\/em>\/piece","Douk Audio Q3 HiFi USB DAC Mini Digital to Analog Converter Coax\/Opt Headphone Amp Treble Bass<\/a>","USD 33.79<\/em>\/piece","Douk Audio X1 HiFi GE5654 Vacuum Tube Amplifier Bluetooth 5.0 Receiver MM Phono Amp for Home Turntables Power Amp APTX-HD 160W*2<\/a>","USD 123.49<\/em>\/piece","Douk Audio NS15G Mini Bluetooth 5.0 TPA3116 Digital Power Amplifier HiFi Stereo Audio Sound Class D Amp Bass Treble For Speaker<\/a>","USD 47.44-58.49<\/em>\/piece","Douk Audio T3 Plus Mini Vacuum Tube MM \/ MC Phono Preamp for Turntables Stereo Pre-Amplifier Headphone Amp<\/a>","USD 58.49<\/em>\/piece","Douk Audio P2 HiFi Vacuum Tube Preamp Bluetooth 5.0 Receiver Stereo Headphone Amplifier USB Music Player<\/a>","USD 55.89<\/em>\/piece","Douk Audio P1 HiFi JAN 5654 Vacuum Tube Preamp Bluetooth 5.0 Audio Receiver USB DAC Headphone Amp APTX<\/a>","USD 90.99<\/em>\/piece","Warm tips:"," ","switched ","2. A2 PRO with low frequency output that only can connect active subwoofer but not passive subwoofer.","Features","\u3010Dual Antennas & Extended Long Range\u3011: adopting QCC3031 Bluetooth chip (support APTX-HD), with dual antennas and advanced Bluetooth technology to ensure high resolution audio and stable connection, can achieve a range of up to 131ft (40m) in open air and 50-70ft (20-30m) indoors without obstacles.","\u3010Strong Output & Entirely New Function\u3011: adopting TDA7498E chip whose max output power can up to 130W+130W, and add a low frequency output can connect active speakers to build 2.1 channel system, the bass effects is greatly enhanced and the shocking auditory just feel like in the cinema.","\u3010Advanced Circuit & Unrivalled Sound\u3011: advanced architecture with high-quality components such as ESS9012K2M independent decoding chip and TI's NE5532 op amps etc., channel balance is improved, distortion is greatly reduced and dynamic range is increased to achieve a new summit in sound quality.","\u3010Strong Compatibility & Easy Use\u3011: standard stereo RCA\/3.5mm AUX\/Bluetooth input, fits HiFi audio system well to get truly faithful reproduction of music, with treble and bass knobs to make sound more delicate and smooth, exclusively designed for the audiophiles who pursue HiFi sound.","\u3010Compact Size & Perfect Details\u3011: made of unique metal-brushed and strong aluminum alloy, solid and durable, unique power and input indicators design can intriguingly shows the current working status, comes with 32V\/5A power supply, very easily to drive most home speakers and match well.","Paramters","(US\/EU\/UK\/AU plug)","1*User Manual"]
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DC5-12V Two Channels Four Channels Input One Channel Stereo Output Audio Signal Mixing Board AU-401 DIY Headphones Amplifier

Item Code: 1005003141891442
Price: $ 39.62
["Product introduction:","
Stereo two-way\/four-way audio input is mixed into one stereo output, which can directly drive headphones or connect to a power amplifier, 3.5mm headphone jack, and potentiometers to individually control the volume of each channel without affecting each other. The maximum power supply is 12V, and the magnification is about 2 times. The quiescent current is about 15ma, and the maximum driving current is 70ma, which can easily drive various earphones and external power amplifiers.
Please use low-ripple power supply. For audio cables, please use shielded cables. The power interface is an ordinary 5.5*2.1mm DC interface.","Note:","The color of the bottom plate is black\/red\/green\/blue and shipped randomly","Package Included:<\/strong>","
Mixing board X1"]

Wholesale 100% Original Brand Lepy Lp-838 2.1 3 Channel Stereo Mini Computer Car Amplifier 3.5mm Headphone out Subwoofer Out

Item Code: 32573608725
Price: $ 45.04
["Note:LP 838BT built-in bluetooth 5.0 function,but LP-838 not has bluetooth function","Features:","1",".Rated power: 15Wx2+20Wx1","2.Low distortion","3.Great for use on your vehicle or your home","4.Smart, lightweight aluminium casing","5.lightweight, has a matt silver casing and allows for full control of your volume, treble and bass output. It also has a jack for plugging your MP3, MP4,for iPod or CD player ","Specifications:","1.DC In put: 12V 3A","2.Jack input: 1\/8\" (standard stereo jack)","3.Voltage: 12V","4.Material: lightweight aluminum","5.Dimensions: 14 x 10.5 x 4cm (5.5 x 4 x 1.5\")","6.Input impedance: 47K","7.Speaker Impedance: 2-8\u03a9","8.Total harmonic distortion: <0.4%","9.SNR: > 80dB","10.Frequency response: 20Hz-20KHz","11.Color:Black, Silver","Package included:","

\t1 ","x","Hi-Fi Stereo Amplifier","Power adapter not include,please click here if you need the power adapter:","https:\/\/www.aliexpress.com\/store\/product\/2-1-channels-amplifier-2x20w-stereo-sound-40w-super-bass-output-HI-FI-CD-MP3-MP4\/1473441_32508886504.html?spm=2114.12010612.8148356.1.45eb122e8EGDBb","Produt details:"]

1600W 4.1 Channel bluetooth Stereo Hifi Car Home Theater Amplifiers Sound Audio Amplifier Car Sound Speaker Digital Amplifiers

Item Code: 1005002921850106
Price: $ 88.96 $ 98.79
["Features:<\/strong>","
- Mini HIFI digital bluetooth audio power amplifier.
- Built-in LCD display, with backlight function.
- SD Card, U disk, AUX, MP3 format play, support bluetooth wireless connection.
- 4.1 channel output, can connect 2 pairs of speakers below 8 inches and 1 subwoofer.
- With treble, bass, and volume control, very easy to use.
- Low distortion supplies a clearer, stronger and more powerful sound.
- Two main channel output.
- With Remote control function.
- AC\/DC power in, Suitable for your home and car.","Specifications:<\/strong>","
Channel: 4.1CH
Rated Power: 40Wx4
Max Power: 400Wx4
Voltage: DC12V 3-5A \/ AC 110-240V
SNR: \u2265 80dB
Impedance: 4-8\u03a9
Distortion rate: 0.4%
Frequency Range: 20-20KHz
Size: 17.6*14.7*4.3cm\/6.7x5.8x1.7in","Package Includeds:<\/strong>","
1 x Power Amplifier
1 x Power Adapter (EU Plug)
1 x Remote Control
1 x User Manual","Notes:<\/strong>","
- Please allow 1-3cm difference due to manual measurement.
- Due to light and screen difference, the item's color may be slightly different from the pictures."]
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LM3886 Mono Amplifier Board 68W 4 Ohms Amplifier Board DC Dual 20-28V TF HIFI Fever Class Home Audio Amplifier Board 62*38MM

Item Code: 1005003076807447
Price: $ 39.62 $ 45.88
["100W*2 Amplifier Board HIFI High Power C5200 A1943DIY Amplifier Board Fever Full Symmetry of The Tube Parts Over LM3886 TDA7293<\/a>","USD 27.22<\/em>\/piece","200W Mono Amplifier Board Fever C5200 A1943 Home Audio Double Parallel High Power Discrete Component Power Amplifier Board<\/a>","USD 25.82<\/em>\/piece","Power Amplifier Board Chassis Signal Selection Switch Board Case DIY Audio Source Signal Switch with RCA Kit Finished Product<\/a>","USD 25.82-28.62<\/em>\/piece","200W+100W*2 Power Amplifier Board DC24-32V TDA7498 2.1 Class D Digital Power Amplifier Board Super TPA3116 Original TL072<\/a>","USD 37.72<\/em>\/piece","120W*2 Amplifier Board High Power A3 Fully Symmetrical Dual Differential Field Effect Tube IRFP240 IRFP9240 Amplifier Board<\/a>","USD 35.62-44.72<\/em>\/piece","DC12-25V PT2399+NE5532 Microphone Amplifier Board Digital Karaoke Reverb Board Digital Echo Board Finished Board<\/a>","USD 13.92-14.62<\/em>\/piece","4*50W+100W TPA3116 4.2 Bluetooth Power Amplifier Board DC18-24V Class D Power Amplifier Board 20Hz To 20KHz<\/a>","USD 45.42<\/em>\/piece","220w 4ohm Mono Split Amplifier Board AC Double18~36V A7 UPC1342V Amplifier Board 2SC5200 2SA1943 Super LM3886 Amplifier Board<\/a>","USD 23.02-28.62<\/em>\/piece","product description:<\/strong><\/em><\/u>","LM3886 TF Amplifier Board HIFI Hi-Fi Fever Class<\/strong><\/em><\/u>","Mono Audio Amplifier Finished Board<\/strong><\/em><\/u>","The PCB board with double-sided tin, the new Italian <\/strong><\/em><\/u>","AV Promise MKT Na Na and other capacitors (50V pressure)<\/strong><\/em><\/u>","resistance with 1 \/ 2W US imports VISHAY and DALE resistance<\/strong><\/em><\/u>","Note: This board needs to be equipped with rectifier filter power","board, the power board needs to communicate 22V to 28V power","supply. A board is a channel !  !  !","LM3886 is the United States National Semiconductor (NS) produced <\/strong><\/em><\/u>","a mono, high-performance audio amplifier IC, the maximum continuous <\/strong><\/em><\/u>","output power of up to 60W, from the launch to the present, has been loved<\/strong><\/em><\/u>","by the majority of audio enthusiasts.<\/strong><\/em><\/u>","The amplifier uses a mono design, amplifier part of each channel a<\/strong><\/em><\/u>","board, power amplifier board can be used in parallel. Resistance <\/strong><\/em><\/u>","on the board resistance<\/strong><\/em><\/u>"," Other capacitors use WIMA, Philips, Nissan, NC and other well-known <\/strong><\/em><\/u>","brands, LM3886TF is the original half of the original authentic. Circuit <\/strong><\/em><\/u>","board with double-sided blue board, wiring reasonable, beautiful and generous.<\/strong><\/em><\/u>","Operating voltage: DC positive and negative pairs 20-28V<\/strong><\/em><\/u>","Output power: up to 68W<\/strong><\/em><\/u>","Amplifier board Dimensions: Length 62mm \/ width 38mm<\/strong><\/em><\/u>","Power supply voltage: DC DC dual 24V-42V, recommended dual <\/strong><\/em><\/u>","30V DC (+\/- 30V DC), (recommended double 26V \/ 100W toroidal <\/strong><\/em><\/u>","transformer, rectifier filter after the DC voltage is about DC double 30V ~ 35V)<\/strong><\/em><\/u>","Reminder: LM3886 in high voltage when the sound quality is much<\/strong><\/em><\/u>","better than the low voltage, but the voltage is too high will bring easy <\/strong><\/em><\/u>","to damage the risk of the amplifier)<\/strong><\/em><\/u>","Output load and power: 4\u03a9-8\u03a9, about 68W (+\/- 30V) at 4\u03a9, 38W (+\/- 30V) at 8\u03a9,<\/strong><\/em><\/u>","50W (+\/- 35V) at 8\u03a9,<\/strong>
\n
\nProduct list: one piece ( <\/strong>Without LM3886 chip <\/strong>)<\/strong><\/strong><\/em><\/u>"]
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2020 FX-Audio D802CPRO Full Digital Audio Amplifier QCC3034 [email protected] APTX 24Bit/192KHz Power 80W*2 DC32V/5A Adapter(Option)

Item Code: 32839552523
Price: $ 205.61 $ 213.62
["2020 FX-Audio D802CPRO Full Digital Audio Amplifier QCC3034 [email protected] APTX 24Bit\/192KHz Power 80W*2 DC32V\/5A Adapter(Optional)<\/strong>","Product specification:<\/strong>","Bluetooth 5.0 APTX full digital audio power amplifier.","Chipset: STA326 + S & PDIF AK4113 + Audio Controller \/ CM6642+ QCC3034 Bluetooth 5.0 + NFC","  +  ADC Wolfson WM8782S","Power Output :  80W+ 80W @ 4\u03a9   ","                               50W+ 50W @ 8\u03a9","Sample Rate: USB - 24bit\/192kHZ","Interface Input : Bluetooth5.0, AUX, Optical, Coaxial, PC-USB","Interface Output: Speaker (R \/ L )                                                                            ","Impedance: 4-8\u03a9","THD : 0.2%","SNR :92dB","Operated:  Remote Control and  Front Panel Volume Control  ","Power supply DC : 32V 5A Power adapter(Optional)","Color : Black\/Silver","Unit weight : 1.5kg with packing","Unit Size: 17.8X11.6X3.5cm","Using high quality Chip Including Amp chip STA326, decoding chip AK4113, USB chip CM6642 (supports 24Bit \/192kHz sampling rates, driver-free), MCU music control chip STM8, Bluetooth 4.2 chip CSR64215, AUX chip WM8782S","It has 6 input ways, including Bluetooth with NFC.  Using QCC3034 BT module support APTX, USB, optical, coaxial, AUX","It Has 0.96Inch OLED display and IR remote control function,Using CM6642 which can support 24Bit\/192kHz"]
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Douk audio 6P1 Vacuum Tube Power Amplifier Hi-Fi Stereo Single-Ended Class A Integrated Headphone Amp

Item Code: 32835198365
Price: $ 617.05 $ 687.05
["This is the latest version, Add a headphone output and have 4\u03a9\/8\u03a9 speaker terminal, pure vacuum tube class A singled-ended amplifier with \"point to point\" wiring.","Features:","This Class A single-ended vacuum tube amplifier adopts hand welding to ensure the true reality of the sound quality.","With headphone output, suit 32\u03a9-600\u03a9  impedance all kinds of headphones","This amplifier adopts transformer parallel output to reduce its internal resistance by half and achieve doubled improvement on its power.","Using antimagnetic transformer covers to shield current interference and achieve much lower static noise.","Its sound output is full of analog style. The bass part is deep and powerful and the vocal part is sweet and intoxicating.","It has a classic and graceful appearance. The VU meters and vacuum tubes make it more elegant and attractive.","Specifications:","Output power: 6.8W * 2","Frequency response: 20Hz-20KHz","Suit headphone impedance: 32\u03a9-600\u03a9","Input impedance: 100 ohms","Output impedance: 8\u03a9,4\u03a9","SNR: 90db","Input Sensitivity: 500mv-2000mv","Harmonic distortion: 1% (1KHz)","Tube: 5z4p * 1 6H8C * 2 6p1 * 4","Operating voltage: 110V or 220V","Weight: about 7 kg","Size: 260mm * 215mm(including terminals and knobs 260mm) * 150mm (W*D*H)","Package includes:","Finished tube amplifier \u00d71","Power cable \u00d71","Without headphone version (Standard Version)","With headphone version (","Updated version",")"]
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Bluetooth 5.0 TPA3116D2 Digital 2.1 Audio Amplifier Board 50Wx2+100W 12-24V

Item Code: 1005002347356407
Price: $ 48.82
["\"Bluetooth","\"Bluetooth","\"Bluetooth","\"Bluetooth","\"Bluetooth","\"Bluetooth"]
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JJ ECC82 Vacuum Tube Replace 12AU7 6211 ECC802S Factory Test And Match signal tube

Item Code: 1005003177634580
Price: $ 213 $ 275
["Thank you for visiting our shop.<\/strong>","I wish you a happy life.<\/strong>","JJ ECC82 Vacuum Tube Replace 12AU7 6211 ECC802S Factory Test And Match signal tube<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: Ship after inspection(After receiving the tube, please do not think it is a fake or shoddy product).<\/strong>","Regarding matching:<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>"]
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XH-M802 Amplifier Board High and Low Voltage Mixer Tone Board Volume Control Subwoofer PCB Adjustment Amplificador

Item Code: 1005003020487607
Price: $ 28.44 $ 28.83
["This tuning version of passive tuning board, the main function of the input audio signal for high and low frequency adjustment, and then sent to the amplifier board to enlarge.","The principle of the product is that the audio signal is directly filtered through the RC filter to get the desired high and low sound through the RC capacitor. The tone board does not need power supply, but the volume after processing will be much smaller.","Parameters<\/strong>","Product Name: Passive tone board","Adjustable items: total volume treble bass","Number of channels: 2-channel","Knob spacing: 22.5mm","Socket type: XH2.54 - 3P","Appearance size: 56*28mm","Weight\uff1a24.5g","

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Douk Audio U2 Mini USB to SPDIF Audio Converter XMOS XU208 Digital Interface COAX/OPT DSD DOP 192KHz

Item Code: 1005001803707662
Price: $ 83.99 $ 127.68
["U2 is a USB to Toslink optical and coaxial converter, suitable for PC computer, notebook, android phone(OTG), set-top box, rock 64, raspberry pi and so on, it can bring better listening experience than PC own sound card.","Features:","Adopting the digital interface of XMOS XU208 chip solution, with 1000MIPS random access memory much higher than U8 (500MIPS). More stable than Italian Amanero solution and supporting coaxial DSD DOP output.","With micro USB input and TOSLINK optical \/ coaxial output(can output at the same time), supporting 44.1K-192KHz\/16-24 Bit sampling rate and DSD64(DOP), better signal process brings higher sound quality and HiFi listening experience.","Using gold-plated coaxial interface, the contact internal resistance is smaller and the data transmission is more reliable. U2 is powered by USB, very convenient to carry and use any time and any where.","Mini size with exquisite design, black and red aluminum cases look more cute and fashionable, very suitable for desktop digital players use.","Parameters","Audio input: micro USB","Audio Output: Toslink Optical \/ Coaxial","USB Chip: XMOS XU208","Supported Sampling Rate:","PCM: 44.1KHz,48KHz,88.2KHz,96KHz,176.4KHz,192KHz,16-24bit","DSD: 2.8MHz(DSD64)-DOP","Working Current: 130mA","Dimensions: (L*W*H) 52*45*20 mm \/2.05*1.77*1.38 in","Net Weight: 50 g \/ 0.11 lb","System compatibility:","1. 32\/64 bit Win 7, Win 8 and Win 10 systems need to install driver, you can download it from the CD driver or by scanning the QR code in the manual.","2. Mac OS 10.6 and above, no need for driver.","3. Linux with UAC2 compliant kernel uses the system's own driver.(Has tested on Ubuntu and Daphile systems, based on INTEL X86)","4. In general, default supporting Android 5.0. And Android(4.2 and above) need OTG function. Recommend operation system below 5.0 to work with dedicated players such as Hiby players.","Packing List","1*U2 USB Converter","1*USB Cable","1*CD Driver","1*Manual"]
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Douk Audio T3 HiFi MM Phono Stage Preamp RIAA Record Player Preamplifier Turntable Amplifier

Item Code: 1005001793585432
Price: $ 73.79 $ 91.99
["<\/strong>","<\/strong>","Features<\/strong>","T3 phono preamp is designed for home MM(moving magnet) turntable record players to convert phono signals to line level signals. It is only a preamp, which needs to be used with amplifiers or active speakers.","With volume control, higher amplification times can make best use of your record player performance.","Adopting pure copper GND and gold-plated RCA terminals, low-noise integrated circuits and high quality components to remove low frequency noise and ensure clear sound quality, bringing HiFi listening experience.","Mini size with attractive appearance, power switch with red indicator makes it fashionable, metal aluminum case can prevent vibrations and electromagnetic interference, very suitable for home and desktop audio system use.","Parameters<\/strong>","Audio input: phono(MM)","Audio output: RCA","Electrical level output: [email protected] 1kHz","Working voltage: DC12V","SNR: \u226598dB","THD: 0.1%","Frequency Response: meet standard RIAA","Product Weight: 290 g \/ 0.64 lb","Dimensions: (L*W*H)118*99*33 mm \/ 4.65*3.9*1.3 in","Packing List<\/strong>","1*T3 MM Phono Preamp","1*DC 12V Power Adapter"]
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274B-T LINLAI Vacuum Tube Replace 274B/5U4G 5AR4 5Z3P GZ34 Factory Test and Match

Item Code: 1005002971075893
Price: $ 271.53 $ 351.45
["Thank you for visiting our shop.<\/strong>","I wish you a happy life.<\/strong>","274B-T LINLAI Vacuum Tube Replace 274B\/5U4G 5AR4 5Z3P GZ34<\/strong>","Regarding matching:<\/strong>","all our tubes are matched in the factory production workshop. The match is accurate (not all tubes are matched).<\/strong>","We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters are the same)<\/strong>","Buy 2 pieces, 4 pieces, 8 pieces = exact matching (matching group). No parameter drift.<\/strong>","Note: <\/strong>","(After receiving the tube, please do not think it is a fake or shoddy product). Official super long warranty (15 months).<\/strong>"]
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Douk Audio Q3 HiFi USB DAC Mini Digital to Analog Converter Coax/Opt Headphone Amp Treble Bass

Item Code: 1005001793424666
Price: $ 73.79 $ 91.99
["Features","Q3 is a digital to analog converter with PC-USB\/Optical\/Coaxial input and RCA\/6.35mm headphone output, which can used with laptop, desktop computer, mobile phone(with OTG function), TV, Apple TV, DVD\/Blu-Ray player or CD player and so on, meeting different requirements of home stereo audio system.","PC-USB is plug-and-play, no need for any driver, it can process digital audio at any bit depth up to 24 bits and any sample rate to 96 KHz with high signal-to-noise ratio and low distortion. High-performance headphone output is designed for a wide range of headphones.","Not only with volume control knob that can adjust both the headphones and RCA output, but with treble and bass control which is specially designed for audiophile to enjoy much delicate and smooth HiFi sound.","Adopting high-end chip combination SA9023 USB chip+CS8412 DAC chip+97220 headphone amp chip to achieve better sound quality, and NE5532 op amp which uses analog circuit design to greatly improve treble and bass sound effects.","Mini size with exquisite appearance, black aluminum case looks more popular and attractive, very suitable for home and desktop audio system use.","Parameters","PC-USB input sampling frequency: 96K\/24Bit","Optical\/Coaxial input sampling frequency: 192K\/24Bit","Frequency range: 20Hz-20KHz(\u00b13dB)","PC-USB system supported: XP\/W7\/W8\/W10\/MAC\/Linux","Bass & Treble range: \u00b16dB","SNR:  \u2265105dB","THD: 0.01%","RCA output level: 2.3V","Headphone matching impedance: 16-200\u03a9","Headphone max power output: 100mw (32\u03a9 load)","Working voltage: DC 5V","Dimensions: (L*W*H)73*98*33 mm \/ 2.87*3.86*1.3 in","Net weight: 200 g \/ 0.44 lb","Packing List","1* Q3 DAC","1* USB Cable","1* USB Data Cable","1* Optical Cable"]
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