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Description
Brand: Wuzhi Audio
<p><b>Product Specifications</b></p> <p><b>Parameter Details</b></p> <p><b>Product Name?</b>2.1 Channel Bluetooth Amplifier Board 300W+300W+600W</p> <p><b>Model Number?</b>ZK-AS21P</p> <p><b>Power Supply Operating Voltage Range: </b>18-50VDC (Max 53V). Recommended: 36-48V DC, 12A or higher.</p> <p>Max Output Power- Left/Right Channel:<b> 300W@50V, 4?; 160W@50V, 8?- Subwoofer: 600W@50V, 2?; 300W@50V, 4?; 160W@50V, 8?</b>(Note: Higher voltage/current and lower speaker impedance increase output power-always use a PSU rated above the amplifier’s operational demand.)</p> <p><b>Bluetooth Chip?</b>JL (Jerry) 5.1, Transmission Range: 15 meters</p> <p><b>Input Options?</b>Bluetooth + AUX + USB Flash Drive/Sound Card</p> <p><b>Channel?</b>2.1 (Left + Right + Subwoofer)</p> <p><b>Amplifier IC?</b>Dual TPA3255 Chips</p> <p><b>Protection ?</b>Undervoltage, Overheat, Overcurrent, Short-Circuit Protection.Note: No reverse polarity protection-ensure correct +/- connection!</p> <p><b>Dimensions?</b></p> <p>External Potentiator Version: 131.5×120×40mm</p> <p><b>Weight</b></p> <p> External Potentiator: Net 453g / Gross 572g</p>
• 2.1CH Subwoofer Audio Amplifier Board The ZK-AS21P amplifier board features a 2.1-channel design, allowing you to connect two passive speakers and a subwoofer. Equipped with treble/bass adjustment knobs, an independent subwoofer volume control, and a 20-200Hz frequency adjustment knob, it delivers optimized audio performance for audiophiles. Fine-tune the sound to experience deeper bass, crisper highs, and a more immersive, layered soundstage.
• HIFI-Grade Audio Amplifier Powered by dual TPA3255 amplifier chips-high-performance Class D modules that ensure ultra-low distortion across the entire frequency range while delivering crystal-clear HD audio. The PCB utilizes advanced windowed tin-sprayed traces to enhance power output, while six low-noise JRC 2068D preamplifiers refine sound quality, boost volume, and improve gain.
• Massive 300W×2 + 600W Output Packs 300W per channel (left/right) and a staggering 600W subwoofer output, effortlessly driving high-power speakers and subwoofers. Requires an 18-50V DC/10A+ power supply (wider voltage input: 18-50V DC). Note: Higher voltage/current and lower speaker impedance increase output power-always use a PSU rated above the amplifier’s operational demand.
• Versatile Audio Inputs Supports Bluetooth 5.1 (faster transmission, lossless decoding, <15m range), USB flash drives, USB sound card mode, and 3.5mm AUX input. Pro tip: Disconnect Bluetooth when using AUX for uninterrupted playback.
• Advanced Protection & Cooling Built-in safeguards: over/under-voltage, overheating, and short-circuit protection. A whisper-quiet, long-life cooling fan (stall-proof, noiseless) sits atop the amp chips, ensuring optimal heat dissipation and reliability.
Model: ZK-AS21P-W
Color: Black
<p><b>Product Specifications</b></p> <p><b>Parameter Details</b></p> <p><b>Product Name?</b>2.1 Channel Bluetooth Amplifier Board 300W+300W+600W</p> <p><b>Model Number?</b>ZK-AS21P</p> <p><b>Power Supply Operating Voltage Range: </b>18-50VDC (Max 53V). Recommended: 36-48V DC, 12A or higher.</p> <p>Max Output Power- Left/Right Channel:<b> 300W@50V, 4?; 160W@50V, 8?- Subwoofer: 600W@50V, 2?; 300W@50V, 4?; 160W@50V, 8?</b>(Note: Higher voltage/current and lower speaker impedance increase output power-always use a PSU rated above the amplifier’s operational demand.)</p> <p><b>Bluetooth Chip?</b>JL (Jerry) 5.1, Transmission Range: 15 meters</p> <p><b>Input Options?</b>Bluetooth + AUX + USB Flash Drive/Sound Card</p> <p><b>Channel?</b>2.1 (Left + Right + Subwoofer)</p> <p><b>Amplifier IC?</b>Dual TPA3255 Chips</p> <p><b>Protection ?</b>Undervoltage, Overheat, Overcurrent, Short-Circuit Protection.Note: No reverse polarity protection-ensure correct +/- connection!</p> <p><b>Dimensions?</b></p> <p>External Potentiator Version: 131.5×120×40mm</p> <p><b>Weight</b></p> <p> External Potentiator: Net 453g / Gross 572g</p>
• 2.1CH Subwoofer Audio Amplifier Board The ZK-AS21P amplifier board features a 2.1-channel design, allowing you to connect two passive speakers and a subwoofer. Equipped with treble/bass adjustment knobs, an independent subwoofer volume control, and a 20-200Hz frequency adjustment knob, it delivers optimized audio performance for audiophiles. Fine-tune the sound to experience deeper bass, crisper highs, and a more immersive, layered soundstage.
• HIFI-Grade Audio Amplifier Powered by dual TPA3255 amplifier chips-high-performance Class D modules that ensure ultra-low distortion across the entire frequency range while delivering crystal-clear HD audio. The PCB utilizes advanced windowed tin-sprayed traces to enhance power output, while six low-noise JRC 2068D preamplifiers refine sound quality, boost volume, and improve gain.
• Massive 300W×2 + 600W Output Packs 300W per channel (left/right) and a staggering 600W subwoofer output, effortlessly driving high-power speakers and subwoofers. Requires an 18-50V DC/10A+ power supply (wider voltage input: 18-50V DC). Note: Higher voltage/current and lower speaker impedance increase output power-always use a PSU rated above the amplifier’s operational demand.
• Versatile Audio Inputs Supports Bluetooth 5.1 (faster transmission, lossless decoding, <15m range), USB flash drives, USB sound card mode, and 3.5mm AUX input. Pro tip: Disconnect Bluetooth when using AUX for uninterrupted playback.
• Advanced Protection & Cooling Built-in safeguards: over/under-voltage, overheating, and short-circuit protection. A whisper-quiet, long-life cooling fan (stall-proof, noiseless) sits atop the amp chips, ensuring optimal heat dissipation and reliability.
Model: ZK-AS21P-W
Color: Black
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