The C1-650 is a 6.5-inch 2-way component speaker system featuring a DMA-optimized 165 mm woofer with stamped steel frame, mineral-filled injection-molded polypropylene cone, rubber surround, and Conex spider for controlled voice coil motion. The system uses an edge-driven 0.75-inch aluminum dome tweeter with ferrofluid cooling and a neodymium magnet circuit plus an outboard in-line 2nd order high-pass crossover with Advanced Tweeter Protection Circuitry.

Installation is designed for easy fit behind factory grilles; multi-application adaptor rings allow drop-in installation in oversized 6.5-inch and 6.75-inch openings while many 6-inch locations are also compatible. Tweeters include surface and flush mount fixtures; product is sold as a pair and grilles are not included.