12" - 1400 W Max Power (400 W Nominal), IMPP cone produces tight and accurate bass, Specially designed Voice coil offers higher power handling - Component Subwoofer | Pioneer | | TS-A30S4 | A-Series 12" Component Subwoofer, 400W RMS, 1400W Max, Single 4-Ohm Voice Coil, IMPP Cone | Black | Best Buy