TW100U 100W Mono Bluetooth 5.3 Amplifier Board, TPA3116D2 Digital Power Amp Module with Built-in Step-up Voltage Circuit (19V/24V), Supports TWS Wireless Pairing, AUX, USB Input, DC 12-24V

High-Performance TPA3116D2 ChipEquipped with the original TPA3116D2 high-performance Class D chip, delivering up to 100W mono output. It features low distortion and low noise, ensuring a pure and detailed sound experience to drive most home or DIY passive speakers.
TWS Wireless Stereo PairingSupports advanced TWS (True Wireless Stereo) function. You can pair two TW100U modules to achieve wireless interconnection for left and right channels, easily building a wireless stereo system without messy wiring.
Multiple Input ModesThe TW100U Bluetooth amplifier board supports multiple audio input options, including Bluetooth, 3.5mm AUX, USB sound card, and USB flash drive (FAT32 format). It easily connects to most devices, making it suitable for various scenarios with convenient and user-friendly operation.
Bluetooth Antenna BaseThe TW100U is equipped with a Bluetooth antenna base that supports connection to an external antenna, enhancing stability and extending coveragesuitable for audio transmission in large spaces or complex environments.
Built-in Boost Circuit (Up to 19V / 24V Output)Integrated step-up power circuit increases voltage to 19V or 24V for stronger output performance even when powered by lower voltage supplies. Maximizes power efficiency and output capability.

100W Mono Amplifier Board

TW100U is a compact yet powerful 100W mono Bluetooth amplifier board, featuring the TPA3116D2 chip. It supports TWS functionality and offers Bluetooth, AUX, and USB input options. With DC 12–24V wide voltage input support and easy operation, it is suitable for a variety of DIY audio applications.

Multiple Input Options

Equipped with Bluetooth, AUX, and USB inputs, the TW100U allows seamless connection to smartphones, tablets, PCs, TVs, and other audio sources. Whether you prefer wireless streaming or stable wired playback, multiple input options provide greater flexibility, wider device compatibility, and more convenient switching between audio sources.

TWS Pairing (Requires 2 Units)

1.Power on both units – blue LED flashes quickly

2.Short press the volume knob 3 times on one unit – red LED flashes quickly (Master)

3.Success: Master red LED solid, Slave red LED slow flash (blue off)

4.Connect your phone to “DAJUNGUO AUDIO” or use AUX/USB on the Master unit

Exit TWS: Short press the volume knob 3 times on either unit

TWS Notes

Pair TWS first, then connect the phone
Slave input disabled – only receives audio from Master (red solid LED)
Auto-reconnect on next power-on

Slotted High-Density Heat Sink Design

The grooved, dense-fin aluminum heat sink increases surface area for faster heat dissipation, effectively reducing chip temperature under high-power operation. Ensures stable output performance and extends the service life of the amplifier board.

Dedicated Bluetooth Antenna Base(Includes Bluetooth Antenna)

Equipped with a dedicated antenna interface, allowing connection of an external Bluetooth antenna for improved signal stability and extended transmission range—especially beneficial for enclosed speaker installations.

Upgraded DC Power Jack (Spark-Free Design)

The enhanced DC power interface reduces spark generation during plug-in, protecting internal components from sudden current impact.