The Rockford Fosgate PM1000X5 is a premium marine and motorsports 5-channel amplifier engineered to power an entire audio system from a single chassis. It combines Class A/B full-range channels with a high-efficiency Class-BD subwoofer channel, making it extremely popular for boats, Harley baggers, UTVs, and high-end off-road systems where space, durability, and output all matter Main Features 5-channel full-range marine amplifier Class A/B front and rear channels Class-BD dedicated subwoofer channel 75W x4 + 150W x1 RMS @ 4Ω 125W x4 + 300W x1 RMS @ 2Ω 500W RMS sub channel @ 1Ω Element Ready™ marine-grade construction C.L.E.A.N. setup clipping indicators Balanced differential inputs High-level inputs with auto turn-on Optional PLC2 remote bass knob compatibility 12dB/octave Butterworth crossovers Punch EQ with +18dB boost @ 45Hz Cast aluminum heatsink Stainless marine hardware Specs Specification Details Amplifier Class Class A/B + Class-BD Channels 5 RMS Power @ 4Ω 75W x4 + 150W x1 RMS Power @ 2Ω 125W x4 + 300W x1 Subwoofer Power @ 1Ω 500W x1 Frequency Response 20Hz – 20kHz Sub Frequency Response 20Hz – 500Hz THD