Audio output: mono 100W. Power amplifier chip: TPA3116D2. 2PCS Power amplifier board (the shell needs to be assembled by yourself). Audio input: Bluetooth+AUX+USB stick+USB sound card. Bluetooth version: 5.1.
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Professional Digital Power Amplifier 4 Channel Preamplifier Audio DJ Speaker Subwoofer AMP Class D Linear Array Sound Amplifier
Aliexpress UK
[BT Mode] Sound amplifier board supports both AUX and BT input, BT mode is preferred, BT 5.0 sound amplifier board module, use it for better results. Sound Input: AUX, BT. BT Version: 5.0. Item Type: Amplifier Board.
eBay
AIYIMA Audio A01 PRO A01 TPA3116D2 Bluetooth Power Amplifier HIFI Sound Amplifier Stereo Class D Home Theater Amplify 100Wx2 Amp
Aliexpress UK
Dedicated Inductor: The digital power amplifier board adopts special inductance for audio to ensure the sound is clear and powerful. Excellent Resistor: The high accuracy SMD resistor is selected to ensure a good signal to noise ratio of the whole machine.
eBay
AIYIMA Audio Amplifier A01 PRO A01 TPA3116D2 Bluetooth Power 100Wx2 HIFI Sound Amplifier 2.0 Stereo Class D Home Theater Amp
Aliexpress UK
The power amplifier board contains the TPA3110 chip, which can ensure high‑quality sound. This digital power amplifier module has professional design, with reasonable structure, easy to replace and install, and small in size and easy to carry.
eBay
AIYIMA B01 Bluetooth 5.0 Subwoofer Digital Power Amplifier 50Wx2+100W TPA3116 Stereo 2.1 Sound Speaker Amplifier Audio USB Amp
Aliexpress UK
IN: Audio signal. Static 2mA low power consumption. Power indicator LED. GND: Ground.
eBay
LccKaa Portable HiFi Headphone Amplifier Stereo Earphone Amplifier 16-300Ω 3.5MM AUX Audio Amp For Phone Android Music Player
Aliexpress UK
Adapter speaker: 10W-100W /4Ω-16Ω output power: 20W 2. Audio input: Bluetooth + AUX input. 5: Safe to use. Check list.
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Grwibeou 16-300 ohm Headphone Amplifier 16-150 ohm HiFi Earphone Amplifier 3.5mm Jack Aux Portable Adjustable Audio Amp
Aliexpress UK
【Brilliant Sound Quality】: Adopting ТРA3116D2 amplifier chip and built-in filter, it provides pure high sound quality, pure and transparent treble, gentle and delicate midrange and shocking bass effect.
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NEW 1PC Oracle II 01 02 Single & Dual Op Amp Hybrid Audio Operational Amplifier Upgrade OPA2604AP NE5532 MUSES02 Op Amp
Aliexpress UK
The built in filter capacitor of this digital power amplifier module makes it available for processing sound signals. Two 20W, 30W or 50W power amplifier boards are equipped with various speakers (4 to 8 Ω), and support Bluetooth stereo audio input and AUX audio input.
eBay
Tokban 2107 212*70*257mm Power Amplifier Chassis Enclosure Headphone Amplifier DIy Amplifier Audio Case Shell
Aliexpress UK