MTX Audio Subwoofer OEM Add-On Kit Polaris RZR Pro XP / Pro R / Turbo R Experience enhanced audio quality in your Polaris RZR Pro XP model with the MTX Audio Subwoofer OEM Add-On Kit. This kit allows one to easily integrate an aftermarket subwoofer into the existing 2-speaker OEM system. The package comes complete with a Proxp-20-Sw 10 loaded, high-output subwoofer enclosure, a Mud600-1 monoblock amplifier, an amp mounting rack, and all essential wiring for a smooth installation. Features: Proxp-20-Sw 10 custom fit subwoofer enclosure 400-watt RMS power High mount ported Mounts behind dashboard on passenger side Quick installation with installer-friendly design Fully assembled out of the box Mud600-1 Key features High efficiency Class D topology Compact design enables installation anywhere Conformal coated printed circuit board that resists moisture Fixed crossovers High and low level inputs 600 watts RMS power Note: The amp racks are not compatible with Polaris heater option.