Kenwood Excelon XM502-1 Mono Subwoofer Powersports/Marine Amplifier - 500 watts RMS x 1 at 2 ohms Ready to outfit your Side-by-Side Watercraft Off-Road Vehicle and more? The Kenwood eXcelon Motorsports XM502-1 is a Class D Mono Marine-Grade Power Amplifier. This inclusion of a conformal coated circuit board a protective terminal cover and stainless-steel mounting screws ensure this amplifier is ready for the elements. Product Highlights: Mono subwoofer powersports/marine amplifier 300 watts RMS x 1 at 4 ohms 500 watts RMS x 1 at 2 ohms Class-D amplifier design Variable low-pass filter (50-200 Hz at 24 dB/octave) Bass boost (0-18 dB at 40 Hz) Subsonic filter (25 Hz at 24 dB per octave) Optional wired remote control available More Info: Conformal-coated circuit boards - suitable for powersports and marine applications Preamp and speaker-level inputs High-level inputs handle up to 5V (about 6 watts) Wiring and hardware not included with amplifier 8-gauge power and ground leads recommended