Here we have a 8 speaker system featuring oversized Powerbass marine speakers. It fits all years XP1K and all roofs except EMP unless you change four center roof bolts to shorter ones. Easy two wire to battery hookup. Enclosure is 100% fiberglass so it will stand up to the harsh environment side by side owners will put them though. System comes standard with LED dome light and internal class D amplifier with a 95% efficency rating delivering over 500 watts rms and 1000 watts peak! This system will make jaws drop and the neighbors mad and sure to be heard way before they ever see you! THESE UNITS NOW COME STANDARD WITH MEMPHIS AUDIO BLUETOOTH RECIEVERS! PLEASE SPECIFY IF ITS 2 OR 4 SEATER WHEN ORDERING OTHER WISE WILL SHIP FOR 2 SEATER.