Almost the same subwoofer as the TS-W2541DVC, except it's 4-ohm rated. Same explosive power (700 Watts max.), tight bass and low distortion figures, thanks in large part to a high-energy strontium magnet and Pioneer's Foamed IMPP cones. It also features Pioneer's Voice Coil Cooling System (VCCS) to reduce temperatures even after hours of high volume music, maintaining high sound quality. Give your passengers fair warning- this sub can shake things loose. Rubber helmets optional.