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    ZK-AS21P 2.1 Bluetooth Amplifier Board, Lead Type Dual TPA3255 design with 300W x 2 stereo output, 600W subwoofer channel, AUX, USB and wired knob controls

    Limited time offer, ends 10/05 By HuiXu South Artware

    • 2.1 CHANNEL BLUETOOTH AMPLIFIER BOARD: The ZK-AS21P Bluetooth amplifier board supports left and right stereo channels plus subwoofer output for DIY speaker systems, home audio projects, and active subwoofer expansion. 2 x TPA3255 CLASS D AMP CHIP: This home audio amplifier board uses dual TPA3255 chips with a stereo and subwoofer output design. Output power depends on input voltage, speaker impedance, power supply current, and heat dissipation conditions. BLUETOOTH AUX USB AUDIO INPUTS: The audio amplifier board supports Bluetooth, 3.5mm AUX line input, and USB sound card input for flexible music playback. Suitable for DIY home speakers, TV audio setups, and desktop audio projects. IMPORTANT INSTALLATION NOTES: Extra expansion boards, microphone preamp boards, pure power amplifier boards, speakers, and power supply are not included. Do not reverse positive and negative terminals. Use a suitable protected power supply and keep the board well ventilated
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    2.1
    CHANNEL BLUETOOTH AMPLIFIER BOARD: The ZK-AS21P Bluetooth amplifier board supports left and right stereo channels plus subwoofer output for DIY speaker systems, home audio projects, and active subwoofer expansion. 2 x
    TPA3255 CLASS D AMP CHIP: This home audio amplifier board uses dual TPA3255 chips with a stereo and subwoofer output design. Output power depends on input voltage, speaker impedance, power supply current, and heat dissipation conditions. BLUETOOTH AUX
    USB AUDIO INPUTS: The audio amplifier board supports Bluetooth, 3.5 mm AUX line input, and USB sound card input for flexible music playback. Suitable for DIY home speakers, TV audio setups, and desktop audio projects.
    IMPORTANT INSTALLATION NOTES: Extra expansion boards, microphone preamp boards, pure power amplifier boards, speakers, and power supply are not included. Do not reverse positive and negative terminals. Use a suitable protected power supply and keep the board well ventilated

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