2.1 Bluetooth Digital Power Amplifier Board TPA3118 2x30W + 60W Subwoofer Support Virtual Surround Function. - Output power: L+R 30Wx2 at 8ohms 24.6V DC and subwoofer 60W at 4ohms 24.6V DC. With virtual surrounding feature based on analog circuit, a surround effect can even be produced in between of two closely placed speakers.
eBay