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Brand Name: | Aiyima |
---|---|
Maximum Power Per Channel: | 25W |
Model Number: | Hood 1969 |
Package: | Yes |
Channels: | 2 (2.0) |
Type: | Home Amplifier |
Feature 1: | Class A AMplifier |
Feature 2: | Sound Amplifier |
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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.
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
DELIVERY ESTIMATE
We processes orders between Monday and Friday. Orders will be processed within 5 business days of ordering and shipped the next day after the processing day. Please note that we don't ship on weekends.
We deliver your orders in 15-20 working days (free shipping), International orders delivery is subjected to the policy of third party courier service, and differs from country to country basis.
Due to the Covid-19 pandemic, you may experience delivery delays but we are committed to getting your order to you as soon as possible.
Note: Please ensure all delivery information is correct. If there is incorrect and/or missing information, we may be required to contact you to update the delivery information, which may cause delays in delivering your order. Delays may also occur as a result of customs clearance.
RETURN POLICY
At MMO-Dropship we strive to make our customers 100% satisfied with the product they’ve purchased from us. If you are experiencing any shipping or products issues, and you’re feeling frustrated, then please send us an email and our team will assist you right away.
We have a 7-day return policy, which means you have 7 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at [email protected]. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at [email protected].
DAMAGED ITEM AND LOW QUALITY
For the fastest resolution, please include a photograph demonstrating the poor quality or the damaged area of the item. The most optimal pictures are on a flat surface, with the tag and error clearly displayed.
We will use this information to help you with your order, and eliminate errors in future.
REFUND POLICY
If you feel the product that you’ve purchased does not show the requirements that you initially had in mind, then you do have the option to request a refund.
Here are the circumstances in which refunds will be granted:
You can get a refund if:
Please note that refunds can take 3-5 business days to return in your account.
You can always contact us for any return question at [email protected].