Mini Digital Amplifier Board Bluetooth Kit - USB powered

Product Code: MOD0540K2


Pay it in 4 payments of $5.75 with Afterpay

Buy 1+ $23.00 (incl. GST)
Buy 10+ $22.00 (incl. GST)
Buy 100+ $20.00 (incl. GST)

Note : Micro USB Module is used as a power supply


A complete amplifier kit ready to assemble. 

All you need to make an I Phone, Smart Phone amplified speaker set (bluetooth required)

Design your own original housing for a unique project


1 X MOD0540 Amp module

2 x EAS3008 Speakers (4 Inch - 2W)

1 x USB A to Micro USB Male Cable 1.2m


Dual channel digital amplifier board, dual channel design. This amplifier board can be powered by USB or batteries. Equipped with built-in high-gain buffer amplifier and short circuit protection on this amplifier board.

Please note this kit requires minimal soldering.


  • Built-in high-gain buffer amplifier, built-in short circuit protection
  • Powered by 1 x lithium battery or 4 x 1.2V batteries, 3 x 1.5V batteries or USB power
  • 5V voltage regulator circuit is required if powered by a transformer
  • Power: 3.7-5V DC
  • Output Power: 5W+5W (4ohms)
  • SNR: 90dB
  • Efficiency: >90%
  • Max. Closed Loop Gain: 24dB
  • Wire Length: Approx. 18cm (short), 28cm (long)
  • Size - 40mm x 20mm


  • Do connect the polarity correctly, and supply voltage must be 5V or under
  • Do not change any component parameters on board, or it will cause damage
  • Try to use shielded wire as the input line for better anti-interference performance
  • Cathode ends of left & right speaker can not be connected together


Module details:



This product is a stereo Bluetooth amplifier module. The Bluetooth version is 4.2.


The version is 4.2. It can be compatible with all mobile phones and Bluetooth adapters on the market.
- The distance is 15 meters in open space.
- It supports automatically connecting devices that have been paired and playing music automatically.

- Can be powered vid the micro USB port or battery terminal inour max 5 Volt
- F class power amplifier 5W+5W, high power output, over 8002 sound quality.
- Good sound quality

- Support USB sound card, free drive, plug and play (normal lithium battery power supply situation).
- This product has dual 5W power amplifier circuit.
- Maximum working current is 5V 2A, using 5V 2A or more voltage power supply, sound quality will be better.
- Circuit can charge a 3.7-5V lithium battery (the lithium battery needs a protective plate! It can charge a lithium battery with a USB rechargeable battery, and the USB port can not be used as a power supply port.) or a 5V adapter be used for power supply.
- When the Bluetooth board is installed, the antenna should not be close to the metal parts so as not to affect the transmission distance.

      Start the cell phone Bluetooth, scan the device, find the "DW-CT14+" to click 




  • Paper Cone
  • 4 Mounting Holes 
  • 100mm (4 inch)
  • 4 ohm
  • 2 watt
  • Dia mounting holes 115mm
  • 35mm deep



The Bits that Count! Surplustronics sells masses of Arduino boards and other pre-made modules ready for your project. These come under the MODULE brand which is exclusive to Surplustronics. While much of this can be purchased online from overseas, we carry huge stocks right here in Auckland and your...

See more from this brand...