These are my subs. 2 Kicker 10" CVRs hooked to a Kicker 750.1 amp, sitting under my rearseat. The song is "Throw It Up" by Lil John and the Eastside Boyz played through my system. My subs are at full bass, but couldn't pick up the low low notes. the volume on my radio is only turned to 10 at the beginning, and 14 at the end. (it goes to 40) (less info)