Bundle contains: 2 48CWR82 CompR 8" Subwoofers 48CWR82 - Ribbed Santoprene Surround Delivers Large Excursion and Distortion-Free Bass Double-Stacked Magnet and Full-Coverage Steel Basket Stitched Surround for Exceptional Durability Rigid SoloKon Cone System with 360-Degree Bracing