Audio System X15-1100 15" 550 Watt Dual-4-Ohm Kevlar Car Audio Subwoofer/Sub

Dual 4 Ohm Voice Coil Woofer 380 mm LONG STROKE - Subwoofer RMS Power: 1100 Watt RMSProgram Power: 1600 Watt3" double voice coil, stable terminals, 20-times ventilation system ultra stable KPC Kevlar/paper cone, cast basket and double sewn spandex rubber with the cone, sewn 3-times double silver lead wire, bigger magnet system with HEM magnet (high-efficient-magnet), improved T-Joke and Pole-Plate construction, progressive PPTA connex double spider with more waves, very stable glass fiber dust cap, USS Spacer(Up Stroke Spacer) installation depth: 190 mm / 7.5Ó installation diameter: 360Êmm / 14.17Ó