Kenwood KAC-M1804 Compact 4-channel Amplifier
MAC-M1804 4 channel compact Class D power AmplifierMax Power 400WRated Input Power 4 ohms 45W x 4SpecificationsSignal to Noise Ratio: 90 dBSize(inch): (W)5-1/2" x (H)1-5/16" x (D)3-9/16"Weight(lbs): 1.6