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Main image of ZK-AS21P 2.1 Bluetooth Amplifier Board, Integrated Type | Dual TPA3255 design with 300W x 2 stereo output, 600W subwoofer channel, AUX and USB inputs for DIY speakers

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ZK-AS21P 2.1 Bluetooth Amplifier Board, Integrated Type | Dual TPA3255 design with 300W x 2 stereo output, 600W subwoofer channel, AUX and USB inputs for DIY speakers

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2.1 CHANNEL BLUETOOTH AMPLIFIER BOARD: The ZK-AS21P amplifier board supports left and right stereo channels along with a dedicated subwoofer output, suitable for DIY speaker systems, home audio projects, and active subwoofer expansion

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2.1 CHANNEL BLUETOOTH AMPLIFIER BOARD: The ZK-AS21P amplifier board supports left and right stereo channels along with a dedicated subwoofer output, suitable for DIY speaker systems, home audio projects, and active subwoofer expansion

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First Listed on Newegg	August 19, 2026

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Return for refund within: 30 days
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Item#: 9SIC8FVM4V4435