i'm gettin rid of the subs so it's not a biggie to me. yeah, they are in a common chamber 6 cubes after dis. tuned to 30hz. i'm gonna post pics of the box build a little later tonight. i'm louder than a friends 15L7 in a 5 cube after dis. @ 30hz with a us amps XT-4000D. so yeah it does get pretty loud, but not loud enough thats why i'm gettin a new setup and thats why i wanted to make these vids so i can compare the new system to the old when i get it.