The Kappa 682.9cf 5-Inchx7-Inch/6-Inchx8-Inch speakers feature light, but stiff woven glass-fiber woofer cones that won"t flex or distort. * Plus One woofer cones This patent pending technology deliver a cone with more surface area than competing models of the same size. * Plus One woven-glass-fiber woofer cones deliver greater surface area for increased bass response and efficiency * Edge-driven MMD-dome tweeter with UniPivot technology delivers crystal clear high-frequencies * True 4-ohm topology is optimized to deliver maximum output whether it"s a factory or aftermarket headunit * Direct-Connect crossover dongle means easy installation * Front-accessible tweeter-level adjustment allows you to tailor the sound to the vehicle