Audio Amplifier Module ZK-AS21 2G Second Generation Upgraded Version 2.1 Channel TPA3255 Bluetooth Digital Amplifier Board

Quantity : 1 High-concerned chemical : none Package : TQFP is_d : Yes Supply Voltage : DC 16-38V Application : Speaker Type : Relay Brand Name : DIY NOW Origin : Mainland China Condition : New

Product parameters: Product name: 2.1 channel Bluetooth audio amplifier module Product model: ZK-AS21 second generation Input method: AUX + Bluetooth + USB disk + USB sound card (dial button to switch mode and songs) Amplifier chip: TPA3255 Bluetooth version: 5.1 Audio output: 2.1 channels (left channel + right channel + subwoofer) Power output: left and right channels ≤220W, subwoofer ≤350W Voltage gain: 30dB Applicable power supply: DC16-38V, ≥10A Applicable Speaker: Left and right channels 30-220W, 3-8Ω Subwoofer 30-350W, 2-8Ω Protection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protection (can be automatically restored without restarting) Switch mode: mechanical switch (no need to press and wait) Product size: Integrated: 141x132x27mm Lead type: 123x132×18mm

Tips: 1. Only when the audio signal input is large enough and the power supply voltage/current is large enough, there will be enough output power! 2. The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power! 3. Make sure that the power of the adapter power is greater than the actual working power of the amplifier! Product list: 1X audio amplifier module (Note: the knob accessory or shell version needs to be installed by yourself) 1X screwdriver label:yes