Infinity Kappa 800W Kappa Series 8" subwoofer with selectable 2- or 4-ohm impedance at Crutchfield
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 93ix 110W RMS 6"x9" 3-Way Coaxial Car Speakers
Amazon.com: Infinity Kappa Four - Four Channel Class D Car Audio Amplifier : Electronics
Infinity Kappa 600 Audiophile Floorstanding Speakers - Flagship Model - The Music Room