PIONEER TS-SW2502S4 10-Inch, 1.200 Watts Shallow-Mount Subwoofer Pioneer 10-Inch 1200W Max Single 4-Ohm Shallow Mount Series Subwoofer Mica-injected resin cone Power range: 100-300 watts RMS (1,200 watts peak power) Frequency response: 20-125 Hz Mounting depth: 3-1/8" Sealed box volume: 0.35-0.7 cubic feet Ported box volume: 0.5-0.7 cubic feet