Sony XM-S400D - 4 Channel Class D Car Amplifier 100 W X 4 Max Power
Power up your in-car sound with the XM-S400D stereo amplifier. Each of the amplifier’s 4 channels deliver 100W of dynamic audio, while low and high pass filters separate the frequency range to ensure a more accurate sound stage. The speaker-level input makes installation easy, even with integrated head units.