Infinity Kappa 123WDSSI Kappa Series 12" 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