45L7R152 15″ L7R Square 2-ohm DVC SubwooferHip to Be SquareIt��s simple �C more cone means more air moves. ��s L7R Square Sub technology gives you up to 20% more cone area than a round sub.Signature StitchingSignature red stitching binds the ribbed Santoprene? surround to the injection-molded SoloKon? cone for added strength even under extreme stress.Braced for ImpactFull 360-degree back bracing keeps the entire cone strong and stable for smooth distortion-free bass.Takes the HeatThe L7R’s powerful motor delivers big bass while utilizing next-level thermal management for optimal performance. The UniPlate? solid pole piece backplate construction ensure the sub stays cool even under extreme power loads.It’s WiredDual voice coils come standard on all L7R models for ultimate wiring flexibility. Get the highest possible power out of your a Dual two-Ohm Voice Coil Wrap Around Gasketing Patented Ribbed Corners 360-Degree Back Bracing Bumped Back Plate