Hey, look at this - a 5.25" dual voice coil with a 6.5" passive radiator, wired remote, 30W RMS x 2, install kit, and it fits under the front seat! $219 at Crutchfield and ~$190 at other audio etailers.
Reviews say it sounds more like a 8" or 10" sub in a ported box.
Links:
http://www.crutchfield.com/S-WtoeiLrRYZG/cgi-bin/prodview.asp?i=113WA62RC
http://www.audio-n-more.com/Kenwood/speakers.htm
http://www.carstereoworld.com/kenwood/kwsubs.html
Reviews say it sounds more like a 8" or 10" sub in a ported box.
Links:
http://www.crutchfield.com/S-WtoeiLrRYZG/cgi-bin/prodview.asp?i=113WA62RC
http://www.audio-n-more.com/Kenwood/speakers.htm
http://www.carstereoworld.com/kenwood/kwsubs.html