PIONEER TS-SW3002S4 12" 1,500-Watt Shallow-Mount Subwoofer with Single 4ohm Voice Coil 12" Shallow subwoofer 4-Ohm Mica-injected resin cone Handles up to 100-400 watts RMS (1500 watts peak power) Frequency response: 20-125 Hz Sensitivity: 93 dB