2 x 50 Watt Class D Bluetooth Audio Amplifier – TSA3610
This is a 2x50W audio amplifier that integrates Bluetooth 4.0. It features perfect class-D architecture, and each channel provides a 50W power output. Any DC12V-24V power supply can power this audio amplifier and can be used to drive any 4Ω or 8Ω passive speakers. There is one button and a knob on the front panel; the button is for power on/off. When you use the volume knob to adjust the audio volume, it will also automatically synchronize the volume with your iPhone.
It’s perfect for your Hi-Fi application, as the audio source can be an RCA input or Bluetooth. You can pair it with a mobile phone, computer, or other compatible device. Power the amplifier board. Use your phone, PC, or anything else to search for a new Bluetooth device. The module will appear as “TSA3610”. You don’t need a PIN; pair it, and then you can play music.
- TSA3610 supports Bluetooth and RCA audio input, offering ultra-low background noise and perfect audio quality.
- The audio volume knob can adjust both Bluetooth and cable input audio volume, making it very convenient and easy to use.

Please set the RCA input to enable/disable the switch to Bluetooth position when you only use Bluetooth.

Specifications
TA = 20℃, fIN = 1 kHz sine wave, RL = 4Ω. (Unless otherwise stated)
| Parameter |
Condition |
Min |
Typ |
Max |
| Supply Voltage (VDC) |
– |
12 |
21 |
24 |
| Idle Power |
SD Floating |
– |
1.3W |
2.5W |
| Standby Power |
SD Connected to GND |
– |
0.1W |
0.3W |
| Maximum Current |
100W @ 4Ohm |
– |
5.29A |
– |
| Efficiency |
50W @ 4Ohm |
87% |
– |
92% |
| Minimum Load Impedance |
|
3.2Ω |
|
|
| Switching Frequency |
SD Floating |
– |
394KHZ |
– |
| Gain |
|
24dB |
25dB |
26dB |
| Input Sensitivity(RMS) |
@4Ω, 50W, 1KHz |
– |
808mV |
– |
| Input Impedance |
– |
– |
22KΩ |
– |
| Output Power |
@4Ω THD+N 1% |
– |
36W |
– |
| @4Ω THD+N 10% |
– |
50W |
– |
| Bandwidth @ ±3dB |
@4Ω |
20Hz |
– |
20KHz |
| THD |
@4Ω, 1W, 1KHz |
– |
0.0299% |
– |
| @4Ω, 10W, 1KHz |
– |
0.073% |
– |
Features
- Dimension: 12cm x 10cm x 4cm
- Weight: 420g
- Bluetooth audio volume knob
- Working voltage: DC12V-24V
- Bluetooth 4.0
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