The 46L7T124 12" sub features the signature SoloKon™ square polypropylene cone, creating a rigid surface that won't flex and cause distortion at high sound levels. The Santoprene rubber surround stands up to the car environment and keeps the cone on track for maximum clarity and minimal distortion, while the sturdy steel frame resists vibration and provides a solid foundation. This sub handles up to 600 watts RMS, so be sure your amp can give it all the power it needs. The dual 4-ohm voice coils make it easy to get more power from your mono amplifier.