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This kit is designed for professionals and DIY enthusiasts alike. It includes a volume knob, a moisture-resistant LED, a 2.4GHz antenna and a TSA2210U amplifier board and Bluetooth receiver. Users can adjust the volume of the Bluetooth audio either via their smartphone, or using the supplied knob. The kit can be powered by a 12VDC power supply or a 12V battery. The LED can indicate ON/OFF status and battery voltage. The kit can be installed in a box to easily create your own audio amplifier.
The TSA2210U Class D amplifier board is based on a TPA3110D2 amplifier chip to develop 2x8W power at 8Ω. It can be powered by any DC 8-16V supply and will be able to drive any 4Ω or 8Ω passive loudspeaker. The volume control circuit is also integrated on this board. The Bluetooth 4.0 receiver uses a CSR8635 chip.

Technical characteristics
| Specifications | |
|---|---|
| Product type | Amplifier board Bluetooth receiver |
| Amplification chip | Qualcomm TPA3110D2 |
| Bluetooth chip | CSR8635 |
| Input | Bluetooth 4.0 |
| Output | Screw terminals |
| Quiescent current | 20mA @ Vcc=12V |
| Input sensitivity | 0.283V @ gain=26dB |
| Input impedance | 30kΩ |
| Gain | 26dB |
| Output power | 8WRMS @ Vcc=12V, THD+N=10% |
| Efficiency | 86% |
| Frequency response | 20Hz - 22kHz (+/-3dB) |
| General | |
|---|---|
| Supply voltage | 10.3-16VDC (power supply not included) |
| Amplification board dimensions | 80*49mm |
| Amplification board mounting holes spacing | 70*40mm |
| Knob board dimensions | 50*26mm |
| Knob board mounting holes spacing | 40*16mm |
| Input | Bluetooth |
| Output | Speaker terminal |
| Output | Screw terminals |
| Channel | 2 (Stereo) |
| Class | Class D / T |
| Amplifier chip | TPA3110D2 |
| Power (W) | 8.0 |