Hey every1 im trying to fit 4xTS-W307D4 subs in between the back seat of a vr sedan and hopefully being able to block it off from the boot completly and also trying to stay below the window line so its not a wall. If any1 has any ideas id appreciate it heaps im not having any luck with designs.i will be running a phd5000 amp into these duel 4s also if that helps.

Are you wanting them in front of the seats, or in the boot. I'd assume the boot, but my understanding is you want it between your backseat? Between the seat and what?

Anyhow, you're best also giving us the maximum dimensions you have to work with. You want it below the window line, but we don't all know how high that is, or how much room overall you have to play with, so you really need to give some more info before we can offer much more assistance.

i'm assuming that the box will be in the boot and you want the subs to face forward, i take it you want to keep the box below the window line for spl comps but dont worry about that rule as your using a sedan and the box is in the boot so there is no window line rule.

4 12s in a VS , hmm that sounds familiar . .

sorry guys my description is shocking i am putting the subbox where there middle person will sit in the backseat turning it into a 4 seater and i wanna go in comps so im trying to squeeze 4 into that little space and blocking the boot off trying to get max spl out of my commodore.

To be honest mate, I wouldn't bother, you're trying to cram 4 woofers into a box that would be way undersized and just rob you of output.

Why do you want the box on the back seat?

my therory was to to have them blocked off from the boot for spl reasons and to have a boot with a spare wheel and room. what class would i be in if it was just above the window line cos i designed a sealed box to (close to specs) but it was a few inches higher than the window line but no higher than the parcel shelf.

Street Max or Super Street, depending on amps, batteries.

If you are intending to enter SPL comps, forget sealed boxes, you want to build a ported enclosure with about
1.5-2cu.ft per woofer, so about 8cu.ft (thats probably going to take up the whole back seat)

might just go bak down to 2 subs in a ported box?