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Amplifier Board - AIYIMA B2D1307

Audio Amplifiers
$39.99 $29.99

This product is a preamplifier without amplifier function. It can't be connected directly to speakers and passive speakers. It can't be connected to headphones and can't be connected to the car. AC12-15V power supply, be careful not to use DC power supply, can not connect to the phono amplifier.

Power supply: AC12V-15V, above 1A, the power supply does not exceed AC15V. (AC12V 1A power supply is recommended)
Tube: 6J3 tube
PCB board: board thickness 1.6MM (glass fiber FR4)
Size: 75*68MM
Product support tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc.
Power socket: DC3.5/5.5*2.1
The tube buffer is enlarged by about 2 times. Connected between the source and the front or rear pole.
1. This product can't drive speaker headphones.
2. The tube should be inserted in the end. When the switch is turned on, the tube light is bright, the tube is not plugged in, the backlight is on, and the product will not work.
3. It is best to use shielded wires for the connecting wires. Common wires may cause leakage or noise.
Package Include:
1Pcs tube preamp

All items in store may take 2 to 5 business days to process.  Please add processing time to your shipping estimate below.

Here is an estimate of the shipping times.  Due to factors that often affect international shipments, such as holidays, customs, and weather delays, we can only offer an estimate of shipping times. 


Estimated Shipping Time

United States

10-30 business days

Canada, Europe

15-40 business days

Australia, New Zealand

15-45 business days

Mexico, Central America, South America

20-60 business days 

Middle East (UAE, Saudi Arabia)

20-40 business days


IMPORTANT: We are not responsible if a package is undeliverable because of missing, incomplete, or incorrect destination information. Please enter the correct shipping details when checking out. If you realize you have made an error, simply e-mail us at as soon as possible. However there is a 72-hour wait list for email, therefore, if your order has left our warehouse within 72 hours, it is out of our control.
Aiyima is not responsible for destination country tax and/or any duty charge that may incur. Customers will be held accountable for any restrictions, duties, taxes, and any other fees collected from the destination country.
Aiyima will not be responsible for any Duties, Taxes, or Customs fees under any circumstances.
If the order arrives in your country and...
• The customer refuses to accept the package
• The number of attempts is made in the country of destination to deliver the package.
Aiyima reserves the right to abandon the package(s) and will not be responsible for any refund.

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Amplifier Board - AIYIMA B2D1307
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