The Razor Series of amplifiers from Power Acoustik pack huge amount of power into small chassis thanks to efficient Full-Range Class D topology and SMT technology. Complemented with every possible preamp adjustment, the Razor amplifiers leave nothing to be desired! The compact 4.75" wide chassis allows mounting in very small places where other amps just will not fit. The RZ4-3000D is a 4-channel amp, with 3,000-watts max. RMS at 4ohm is 285 watts x 4. Overall dimensions are 1.63"H x 4.75"W x 12.25"D.