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Im working with Limited space in my Dodge Ram 1500 st cab. I just aquired some Eclipse sw6123dvc's and am wantting to build a box for them. I have about 64 inches of width across my truck behind my seats for a box. Now the Manufacture specs say 1.65cf sealed and i was wondering if that is 100% necessary because i can find a box online that is 1.1 cf and i wouldnt have to build another box, im a lil tired lol. But if i was to build one I was thinkin of these specs... 64W 16H Td 5 BD 10 With a seperator in the middle so that each chamber is independent... Came out to about 1.674 per chamber but that is without the separator so its prolly about 1.63 im guessing. Also i was reading that it is harmonically better if i place the subs as close together as possible. Is that true? ill put the link in here...

This cabinet seems simple, and it is, but not because there is no design or testing behind it. In the high pressure-quick cabin response atmosphere of the small pickups, we found that the best coupling comes from centering the drivers as close together as possible and as low in the box as possible. This origin yields the most even distribution of pressure within the cabin and cuts through the seat far better than the more typical separated alignments you so often see
thats from this website ... http://www.decware.com/tbk10.htm

Please get back to me as i have limited time b4 i go back up to college

you can usually deviate from spec by 10-15% with a smaller box, and make up for it using dacron inside the sealed enclosure. More deviation than that and the sub will start to sound a little too punchy and it'll bottom out when you start getting to higher volumes in the car.. it's not a real pleasant sort of sound.
you can always try the 1.1cu ft box though and see how it sounds.. at worst, you'd end up returning the prefab box.

unfortunately the box is dare I say... EBAY so it will take forever to return

Right now my Pioneer Premiers 10" dvc's bang really hard with some distortion and i like them alot but i kinda won these subs and i have always wantted Eclipse subs so its now my chance to do this ... U think that ill hit some higher db range with a 1.6 cf box?

make a center console for them. thats if it has that goofy center seat and the fold down middle

yea i got that stupid desk thing in my ram so i cant unless i break the welds on the bench seat and then take it out that way... I was really considering doing that though for presentation ... What do you think about the idea of placing the subs close together?