Rockford Fosgate R2-500X4 Prime 4 Channel Class D Amplifier 4 x 75w RMS
Cast aluminum heat sink. Than a Decade. (RMS Continuous Power)75 Watts x 4 @ 4Ω. (Sum of Rated Power)500 Watts. 2/4 Channel Input Selection Switch. Average Current Draw (13.8V Music). Current Draw (13.8V Sinewave)59 A.