So I recently installed my aftermarket subs into my 2012 Civic LX the other day with some friends and we noticed that the subs aren't hitting as hard as they used to in my old car, which was a 2001 Pontiac Grand Prix. I used to have a Kicker audio system hooked up on my old car minus the alpine head unit. It used to bump like crazy in my old car but now not so much. Right now, I've got two 12" Kicker CVR122s hooked up to a Hifonics HFI1000.1D with a LOC to connect it to my stock head unit. We've got the gain all the way up on the amp and the bass max on the bass control but still it's nowhere as loud. Any ideas on why it's not bumping as it was before?