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Compact black amplifier board with power terminals and USB port

Ruth's sister

Ruth's sister AK-370 12V 20W+20W internal power cable

SKU CH-JE9J-F4AHJ

A 12 V stereo amplifier board delivers 20 W per channel with Bluetooth and USB OTG input

  • Bluetooth streaming from phones via USB OTG
  • 20 W per channel drives home-theatre speakers
  • 12 V DC input suits desktop power supplies
  • Compact AK-370 board fits tight chassis spaces

AK-370 12V stereo amplifier

The AK-370 is a compact stereo amplifier that delivers 20W per channel from a 12V DC supply. It accepts Bluetooth-compatible audio and USB OTG input for direct playback from portable devices. The small form factor suits desktop or bookshelf speaker systems where space is limited. Buyers who need more output power or multi-channel surround decoding will need a larger amplifier.

USB OTG and Bluetooth input

The USB OTG port lets a phone or tablet act as a source without a separate DAC. Bluetooth-compatible streaming removes the need for a physical cable between the source and the amplifier. Both interfaces feed the same 20W+20W output stage so the listener can switch sources instantly. Users who require optical, coaxial or HDMI inputs must add an external converter.

Highlights

  • Bluetooth streaming from phones via USB OTG
  • 20 W per channel drives home-theatre speakers
  • 12 V DC input suits desktop power supplies
  • Compact AK-370 board fits tight chassis spaces

Specifications

No published specifications for this item yet.

Questions about this item

Does the AK-370 amplifier require any periodic maintenance or component replacement?

The AK-370 is a solid-state amplifier with no user-serviceable parts or scheduled maintenance requirements; it operates continuously from a 12 V DC supply without consumable components.

What is the first limit reached when the AK-370 runs at full output for extended periods?

Sustained 20 W per channel into 4 Ω loads will cause the heatsink temperature to rise until thermal protection engages, limiting continuous power before any electrical limit is reached.

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