RFRB Kenwood Excelon XM502-1 Class D Mono Marine Amplifier with 500 Watt Peak and Protective Terminal Cover The Kenwood Excelon XM502-1 is a powerful mono amplifier designed to deliver up to 500 watts RMS to your subwoofer. Its compact size allows for flexible installation in any boat. The amplifier features a precise low-pass filter for optimal sound tuning and a built-in bass boost to customize the amount of bass impact. With a subsonic filter, it efficiently removes ultra-low bass frequencies, ensuring the amplifier and subwoofers operate at their best. Additionally, an optional wired remote is available for convenient subwoofer-level control from the driver's seat. Product Highlights: Mono subwoofer 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) 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 are not included with the amplifier 8-gauge power and ground leads recommended Fuse rating: 30A x 2 8-7/16"W x 2-1/8"H x 6"D