Massive Audio SUMMO XL Se ries SUMMO XL154 3000 Watts Peak, 15 Dual 4 Ohm Car Audio Subwoofer. Brand New, In Factory Box, Not Refurbished. 15 Dual 4 ohm SummoXL Series Subwoofer. Kevlar fiber enhanced non-pressed paper cone.EROM foam surround with red stitching. 3 4-layer hi-temp voice coil. 10 Gauge power cable with direct lead connection. Virgin Islands and other countries outside the USA.