4 channel Digital high power amplifier with SMD technology, variably switchable Subsonic, HP, LP, BP filter and full active mode possible High-level input or signal detection with automatic "TURN ON", 4x 50 Watt RMS at 4Ohm 4x100 Watt RMS at 2Ohm Dimensions 113 x 38 x 100 mm Suitable for: 4-Channel