1/2/3/4Pcs TPA3116D2 Bluetooth 4.2 Digital 2.1 Audio Amplifier Board. 2, Bluetooth Disconnected status, Long press the switch can switch to the audio input mode. 1, Plug on the power on, the default is Bluetooth mode.
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The board adopts imported original TDA1308 earphone amplifier special chip. Board size: 20mm 15mm. 10 Pieces Board. Suitable for battery powered use. hope you could understand.
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Using ne5532 or tda138 4-way mono audio mixing board, patch process production. Suitable for 4-way mono signal input mixed all the way to the output, no attenuation. Such as microphone voice audio signal, etc.
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Dual-core design with TPA3223 chip for more stable and clear sound quality. 1x amplifier board. Audio input sources: Bluetooth/AUX/USB drive. Sound & Vision. 2.1-channel high-power output with left/right + subwoofer combination for powerful sound.
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Output power: Left and right channels ≤ 50W, subwoofer ≤100w. Applicable speakers: 20~100W, 4~8Ω. Power amplifier chip: TPA3116D2 (With AM interference suppression function). 1 x Amplifier Module Kit.
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