2 x 50W + 100W 2.1 Channels Bluetooth+DSP Amplifier Board – TSA7800B(Apt-X)

$74.50

Any DC12V-24V power supply can power this board. It can be used to drive any 4Ω or 8Ω passive speakers(a Subwoofer channel can drive a 2Ω speaker).

2 x 50W + 100W 2.1 Channels Bluetooth+DSP Amplifier Board – TSA7800B(Apt-X)

TSA7800B 2x50W + 100W 2.1 channels Bluetooth+DSP amplifier board with an AudioB I2S Bluetooth module that supports Apt-X. TSA7800B is a very flexible DSP/DAC/Amplifier combination board. It has perfect class-D architecture(Based on TPA3116D2); two channels have a 50W power output, and another one has a 100W power output. All the channels are capable of outputting nominal Power simultaneously and continuously.

It’s a 2.1 channels amplifier board. That channel for the subwoofer is 100W mono output (The user can change the DSP program to let it becomes a right or left channel). You can pair it with a mobile phone or a computer etc.. Power the amplifier board. Then, use your phone or PC to search for a new Bluetooth device. The module will appear as “TSA7800B”. You don’t need a PIN, pair it, and then you can play music.

The highlight point is the ADAU1701 DSP chip on board. Users can set each channel’s audio tone separately. Apt-X and TWS supported. Therefore, Users can stream audio to 2 paired amplifier boards simultaneously wirelessly.

External Buttons port: Three buttons on the board can control the audio volume, play/pause, etc… You can connect external buttons easily by using this button’s control port.

Pins define:(Check the board backside silkscreen):

  • P/P: Play the pause button
  • VOL+: volume increase and forward button
  • VOL-: volume decrease and rewind button
  • 1.8V

Aux in enabling port: The default DSP program mixes the RCA/Bluetooth audio and output to the amplifier chips. If you want, select the RCA/Bluetooth manually by a switch. In addition, you can connect an external switch to this port and load a different DSP program.

POT port: The user can connect an external 10K potentiometer to control the audio volume.

DSP programming port: Users can load a new DSP program by using the USB JTAG Sigma DSP programmer

The onboard default DSP program will mix the RCA&Bluetooth audio and output to the speakers. However, users can also change the DSP program to make the audio source selectable by an external switch.

TWS settings:

  • S1 – Long press 3s into pairing mode. Long press 6s to clear the pairing info.
  • S1+S2 – Long press 1s into TWS slave mode.
  • S1+S3 – Long press 1s into TWS master mode.
  • S2+S3 – Long press 1s disconnect TWS connection.

Features:

  • Size: 13.5cm x 9.2cm x 3.4cm
  • aptX, aptX Low Latency, SBC, and AAC
  • Bluetooth 5.0
  • I2S Sampling Rate: 48KHz
  • 2.1 channels
  • Working voltage: DC12V-24V
  • Over/under voltage protection
  • Over current protection
  • Over temperature protection

Applications:

  • Personal computer
  • Background music system
  • Musical instrument amplifiers
  • Home DIY
  • Car Audio

Product Datasheet and Manual

If applicable, the Product Documentation such as Datasheet, Brochure, Reference Materials, CAD Design, STP Files, Manuals, and Tutorials will be available for download upon purchase from the My Account as needed. On the checkout page, please create an account to download product-related files upon purchase. You won’t be able to download otherwise.


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Founded in 2009, TinySine Electronics is a smart home and open source hardware provider, catering to hardware engineers, DIY enthusiasts and interactive designers. Our ever-growing product catalog includes over 700 components and widgets from sensors, robotic platforms, communication modules to smart home relay boards.

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