Left or right channel 300 W at 50 V into 4 ohm; 160 W at 50 V into 8 ohm Maximum power subwoofer 600 W at 50 V into 2 ohm; 300 W at 50 V into 4 ohm; 160 W at 50 V into 8 ohm In short The higher the voltage and the lower the impedance, the greater the output power 2.1 power Bluetooth digital power amplifier board Using the latest materials to develop a power Bluetooth digital power amplifier board 2.1 channel fidelity sound quality 3.2 electrical requirements and recommendations The working voltage range is 18 50 VDC, with a limit of 53 V It is recommended to use a DC power supply with a voltage of 36 48 V and a current of 12 A Use scenarios and applications Home theater or living room setup with a subwoofer and stereo speakers to achieve power, deep bass, and clear dialogue DIY Bluetooth speaker projects or commercial audio installations in cafes, small shops, or venues requiring a 2.1 channel configuration with strong bass performance Studio or project room audio system where a compact power amplifier board is needed to drive multiple speakers or a subwoofer with Bluetooth input for convenient wireless streaming