15-MCR10S4 - Memphis 10" 300 Watts RMS Single 4-Ohm Subwoofer 15-MCR10S4 - Memphis 10" 300 Watts RMS Single 4-Ohm Subwoofer Power Handling: Peak: 600 watts | RMS: 300 watts 4-Layer winding on a 1.5" Kapton Voice Coil Double Roll Butyl Rubber Surround Stitched to the Cone Mounting Depth: 5.1"