Best Buy: Infinity Kappa 6-1/2" 2-Way Car Speakers with Aluminum Woofer Cones (Pair) Silver Perfect5.1
Amazon.com: New Infinity Kappa 62IX 6.5" 225 Watts Max (75 Watts RMS) 2-Way Coaxial Car Audio Stereo Multi Element Speakers with UniPivot Tweeters with Oversized Voice Coils - Pair with Alphasonik Earbuds : Electronics
Best Buy: Infinity Kappa 4" x 6" 2-Way Plate Car Speakers with Plus One Woofer Cones (Pair) Silver KAPPA462.9CFP
Infinity Kappa Perfect 600 Kappa Perfect Series 6-1/2" component speaker system at Crutchfield