This Class D amplifier module uses an Infineon MA12070 chip allowing it to deliver 2x55W of power at 4Ω with great efficiency while providing accurate and consistent sound reproduction. A built-in volume knob allows for easy sound level changes. Regarding the inputs, the amplifier offers Jack 3.5mm as well as a Bluetooth receiver allowing to broadcast its music remotely, from a smartphone or a tablet for example. The output to speakers is done simply using screw terminals.