Infinity 6809CS 270W (Peak) 6 x 8 / 5 x 7 -Inch Two-Way Speakers (Pair) The Kappa 680.9cs component speaker system features 5-Inchx7-Inch/6-Inchx8-Inch woofers with responsive woven glass-fiber cones Plus One woofer cones This patent pending technology deliver a cone with more surface area than competing models of the same size.