Kicker 43C104 Comp 10-Inch Subwoofer, 4-Ohm, 150 watt continues, 300 watt peak power handling. Ribbed, UV-treated surround with white double stitching binds the suspension to a thick polypropylene cone for excellent reliability. High-quality stamped steel is used for the basket for outstanding stability under extreme stress. Bumped back plate allows the high temp voice coil to move more even more, so you get the deeper bass without distortion. Perimeter venting allows air to move freely around the motor for excellent heat management. Spring loaded satin nickel terminals accept a wide range of speaker wires. Stiff injection molded cone with 360 degree back bracing.