Infinity Kappa 682.7cf 6"x8" 2-way car speakers 2-way car speakers for 6"x8" openings (pair) 2-ohm impedance for extra power (compatible with all factory or aftermarket car stereos) Plus One woven-glass-fiber woofer cone with hi-roll rubber surround rotating UniPivot MMD dome tweeter computer-optimized outboard crossover with tweeter level control