SPL 10" 500-Watt Subwoofer, ELF10

4 ohms, dual voice coil, 55-ounce magnet, 500 watts peak power handling

Polypropylene cone Foam rubber surround 2-inch Kapton voice coil with side vents for better cooling 55-ounce magnet Chrome-plated basket Chrome connection terminals 91 dB sound pressure level For sealed enclosures of 0.5 cubic feet For ported enclosures of 1.6 cubic feet, tuned to 35 Hz (7.75"L x 3"W port)