Ok I planning to install 2 Type R's DVC and a new Amp. I don't know if I should go with a Alpine amp or a Kenwood amp. Another problem is that I currently have a Kenwood amp hooked up to 2 Type S 12" DVC(at 1ohm stable), but the thing is I get more bass inside the car when I have the subs connected an old 2 Channel amp (which has less RMS and is at 4ohm). I don't get it I need help.