ZK-AS21 2nd Gen 2.1 Channel Bluetooth Power Amplifier Board with TWS, 220W×2 + 350W, TPA3255 Chip, Vehicle Amp with Bluetooth/AUX/USB Inputs ZK-AS21 2nd Gen
All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
【TPA3255 Hi-Fi Chipset】The ZK-AS21 2nd Gen amplifier board utilizes dual TPA3255 amplifier chips, supporting a broad voltage input range of 18-38V DC and delivering up to 220W×2 + 350W (PMPO) output. Note: Minimum operating voltage is 18V; the board will not function properly below this threshold.
【TWS True Wireless Stereo Pairing】Features one-touch TWS pairing to wirelessly synchronize two amplifier boards for immersive left/right channel stereo sound—ideal for building customized wireless speaker systems.
【Multiple Input Options】Offers versatile connectivity including Bluetooth, AUX audio input, USB flash drive playback, and USB sound card compatibility. Ensures quick and effortless pairing with various devices for seamless operation.
【Comprehensive Protection Mechanisms】Equipped with multi-layer safeguards such as short-circuit protection, under-voltage protection, over-voltage protection, and clipping prevention to ensure stable and reliable performance.
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