I picked up the svr 12 dvc 4.wired 2 ohms on Rockville db13 "(sorry skar")totaly underpowerd nothing major juss getting into the game and little money you always go for cheap subs.after the lack of sound quality and subs sounding like speaker queefs.it made sense to juss go with a high quality sub.so I went with skar audio.svr 12 lnat 2ohms hits hard and has really deep bass huge motor. Couldn't believe the quality for the price.haven't even tapped its potential yet.anyone juss getting into the audio game look no further skar will not disappoint.there website is awesome as well easy to use and has a lot of information juss the thing you need when putting together your system."skared for life"