SMSL's compact DA-1 Class D stereo amplifier with essential capabilities. With the included 15V power supply, it delivers 2x25 W at 4Ω and features an equally small but powerful TPA3118 Class D amplifier chip, as well as anti-pop circuitry to protect the speakers. The affordable amplifier has stereo RCA inputs and speaker outputs. The package includes the 15V mains power supply.