Left or right channel output and subwoofer power Left or right channel: 300W @ 50V into 4Ω; 160W @ 50V into 8Ω Subwoofer (maximum power): 600W @ 50V into 2Ω; 300W @ 50V into 4Ω; 160W @ 50V into 8Ω In short: the higher the voltage and the lower the impedance, the greater the output power Voltage and power supply requirements Working voltage range: 18 50V DC; maximum limit: 53V Recommended DC power supply: 36 48V and 12A Technology and performance Built with the latest materials to develop a power Bluetooth digital power amplifier board 2.1 channel configuration for fidelity sound quality Use scenarios Home audio system with Bluetooth source: pair the 2.1 channel amplifier with a Bluetooth source and a subwoofer to achieve strong stereo output plus extended low frequency response in a living room or den DIY party or outdoor speaker project: utilize the power on the left/right channels and a capable sub for a loud, clear sound suitable for small gatherings or events, powered from a 36 48V supply Educational or studio installations: integrate into a compact Bluetooth enabled audio setup for demonstrations, presentations, or small room multimedia applications requiring robust amplification and clear vocal/ frequency clarity