2.1
CHANNEL BLUETOOTH AMPLIFIER BOARD: 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: Home audio amplifier board uses dual TPA3255 chips with 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: 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. ^^ BLUETOOTH AUX
USB AUDIO INPUTS: 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.
CHANNEL BLUETOOTH AMPLIFIER BOARD: 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: Home audio amplifier board uses dual TPA3255 chips with 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: 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. ^^ BLUETOOTH AUX
USB AUDIO INPUTS: 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.
