【COD】ZK-HT21/ZK-TB21/ZK-MT21/ZK-NEW 502MT 2.1-channel Stereo Bluetooth 5.0 Digital Power Amplifier Module Digital Power Amplifier power mixer mixer audio system Video

Product name: 2.1 channel Bluetooth audio power amplifier moduleProduct model: ZK-HT21for Bluetooth version: 5.0 (unobstructed, 15 meters)Input method: AUX + for Bluetooth + USB (the dial button to switch modes and songs)Number of channels: 2.1 channels (left channel + right channel + subwoofer)Amplifier chip: TDA7498EAdapter power supply: DC15~36 V (under voltage protection below 9V, 12V power supply can also be supported)Adapted speakers: 30-200W, 4-8ΩOutput power: left and right channels ≤160wSubwoofer≤220wProtection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protectionProduct size: 14512628mmProduct weight: net weight 327g, including packaging 395gTip: When the audio signal input is large enough and the power supply voltage/current is large enough, there will be enoughOutput Power!The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power! Please make sure that the power of the adaptor is greater than the actual working power of the amplifier!Checklist1*Power amplifier board kitProduct selling point1: The appearance of classic low, medium and high frequency full coverage2: APP has a timer shutdown function3: One turn on/off, no need to long press and wait to see the indicator light4: [Input method] AUX+Bluetooth+U disk+USB sound card5: Input anti-reverse connection, overheating, overcurrent, short circuit protection