50.11cs - Infinity 5.25" 2-Way Kappa Series Component Speakers System
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
Infinity Kappa Car Speakers Overview | Crutchfield Video - YouTube