1 Cubic Feet, Ported Enclosure Internal Volume: 1.
7 Cubic Feet4 Inch Round Port Circumference, 12 Inch Port Length, 34 Hz Port Frequency5. 2 Inch Mounting Depth, 11 Inch Mounting Hole Diameter1500 Watts Peak Power750 Wats RMS Resonant Frequency 35 Hz, Sensitivity SPL (1W / 1m) 87 dBTreated Paper Cone, 2 Inch Aluminum Voice Coil, Foam SurroundSealed Enclosure Internal Volume: 1.. Planet Audio TQ12S Torque Single 12" 1500 Watt 4 Ohm Power Car Stereo Subwoofer Planet Audio TQ12S Torque Single 12" 1500 Watt 4 Ohm Power Car Stereo Subwoofer.