I have a kicker CVR 10" subwoofer with a rating of 400RMS/800Max..
Rated 4.5 to 5 stars almost everywhere..
It's in a ~1sq foot airspace box carpeted in black, looks good. The box is square, meaning it's not quite crew-cab under-seat friendly as it comes.
I bought this subwoofer thinking I'd use it for my dual 10" Supercrew sound crew cab under seat subwoofer box but I already had two 10" sony xplod speakers to put in it and decided I'd not spend extra money for another matching 10" kicker CVR subwoofer... I'm sure the two CVR 10" kicker subwoofers would probably be a heck of a lot better than my sony's but it is what it is, I'm not being too serious with my audio right now, I've got a few things to take care of before I go into the extreme with it..
Barely used, looks fantastic, great subwoofer, could be put to better use by someone on the forum crazy about their audio.
Size (IN.,CM) 10, 25.4
Impedance (OHMS) 2 or 4 DVC
Max Rec Amplifier Power (WATTS PEAK/RMS)* 800/400
Sensitivity (dB 1w/1m) 85.5
Frequency Response (Hz) 25-500
Mounting Depth (IN.,CM) 5 9/16, 14.1
Mounting Cutout (IN.,CM) 9 1/4, 23.5
Min Rec Sealed Box Volume (CU. FT., Liters) 0.8, 22.7
Max Rec Sealed Box Volume (CU. FT., Liters) 3, 85
Min Rec Vented Box Volume (CU. Ft., Liters)** 1.25, 35.4
Max Rec Vented Box Volume (CU. Ft., Liters)** 1.75, 49.6
Crutchfield sells it for $130
Throw me an offer.