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This product will be shipped using FedEx (shipping cost per order: US$ 25). Delivery in 4-7 business days. Check out this page. 

This is a 2x50W audio amplifier that has integrated Bluetooth 4.0. It has perfect class-D architecture and each channel has 50W power output. This board can be powered by any DC 12V-24V power supply. It can be used to drive any 4Ω or 8Ω passive speakers. There are 2 toggle switches and a knob on the front panel. One switch is for power on/off and the other one is for RCA input enable/disable. When you use the volume knob to adjust the audio volume, it will also automatically synchronize volume with your iPhone.

It is perfect for your Hi-Fi application, the audio source can be RCA input or Bluetooth. You can pair it up with a mobile phone or a computer.

Power up the amplifier board, use your phone or PC to search for a new Bluetooth device, the module will appear as
"TSA3610", you can simply pair it up without PIN. Yes, it connects automatically with your device. You can then play your audio.

  • TSA3610 supports both Bluetooth and RCA audio input. Ultra-low background noise and perfect audio quality.
  • The audio volume knob can adjust both Bluetooth and cable input audio volume. Very convenient and easy to use. 

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


TA = 20℃, fIN = 1 kHz sine wave, RL = 4Ω. (Unless otherwise stated)






Supply Voltage (VDC)



21 24

Idle Power

SD Floating




Standby Power

SD Connected to GND




Maximum Current

100W @ 4Ohm





50W @ 4Ohm

87% - 92%

Minimum Load Impedance




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



- 20KHz


@4Ω, 1W, 1KHz




@4Ω, 10W, 1KHz





  • Dimension: 16cm x 7.5cm x 4.8cm
  • Weight: 420g
  • Bluetooth audio volume knob
  • Working voltage: DC 12V-24V
  • Bluetooth 4.0


  • Personal computer
  • Desktop amplifier
  • MP3, Video CD output Amplification
  • Home Theater
  • Powered DVD Systems


  • All the order are shipped within 2 business days. 
  • Products are either shipped from China or Australia. Item locations are mentioned on the product page.
  • Customers will receive tracking code if they have selected the 'shipping method with a tracking code'.
  • Returns are accepted if the customers return the items within 1 month to our address in Australia. If the item has been shipped from China, the customer still has to return the item to Australia. 
  • Return post fees have to be paid by customers. If the product is defective, we will pay the shipping fees.


Shipping fees for Australian addresses(Item Location: Australia):

  • Standard Post- using Australia Post: US $5.95 ~ AU $9.00 
  • Express Post: US $9.95 ~ AU $15.00


Shipping fees for international addresses (Item Location: Australia):

  • Standard Post with tracking code: US $17.50 ~ AU $26.50
  • Express Post with tracking code: US $36.50 ~ AU $55.00


Shipping fees for Australian and international addresses:(Item location: China):

  • Registered post with a tracking code: US $3.95 ~ AU $6.00 
  • Express Post with tracking code: US $25.00 ~ AU $38.00 


How long does it take to reach the USA, UK, Germany, Australia Canada and other EU countries?  

From China: If we ship from China, the delivery time can be from 7 working days to 15 working days. See the proof on the images below. US based orders are delivered more quickly than other countries.

Most of the USA, UK, Canada, Australia, and Germany  based orders are delivered within 7 days. However, because of customs related processes, it can sometimes take up to 15 days.  Check out all the shipment proof images on this page. 


From Australia: If you have chosen standard post, you will receive your parcel in 3-5 days (in Australia) and 5-7 days (outside Australia)

If you have chosen economy post, you will receive your parcel in 3-5 days (in Australia) and 15-25 days (outside Australia)


What is the proof that we really ship and they are delivered ?

 Check out all the shipment proof images on this page. 


Where do we ship from ? 

We ship our products from Australia and China depending upon what you purchase. BuildCircuit's original products are shipped from Australia. 

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