Subwoofer box plans drawn out!

Drew out the plans for my new sub (on the way in the mail). Subs a polk MM1040, box is about .67 cubic feet. The box is going under my left rear passenger seat in my sierra. External dimensions are 18" wide, 7"deep, 14"long at the top and 12" long at the bottom, Building out of 3/4 in mdf. Only issue i might see is that the sub is only going to be about an inch to two inches from the bottom of the seat, is this going to cause any disruptions in sound? I figure I will just fold the seat up when theres 2 people in my truck.
Post edited by phil65 on
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I asume you are familiar with the polk box plan site: http://www.polkaudio.com/caraudio/subbox/ ?
If not, take a look.
If I were you I'd prefer the center position. And make it removable.
I wouldn't worry to much about the clearance. 2 inches is fine.
Just be sure nothing touches the woofer.
Asuming you mount the amp on a different place, make an extra connector (with the female side on the amp!) in the wires to the subwoofer. And don't forget an extra off switch in the remote wire, to disable the amp when running without sub.
By the way. I've got a MM840 for 2 years now. And I'm still satisfied.
Sounds like you have a fun project going there. Good luck!
1C
Sda1C (Tweets, Sonicaps, Mills, Boards, Spikes, Rings, Dynamat)
Rta11T (Tweets, Sonicaps, Mills, Spikes, Rings, Dynamat)
5jr+ (Tweets, Spikes)
CS350ls (Sonicap, Spikes)
12" DXi x 2 (Dayton Plate. Slot ported Custom boxes)
Sunfire TGP3, Sunfire SIG 425x5, Oppo BDP-93, Belkin PF60, Sony PS3 Slim 320 gig, Technics SL-1360
DH Labs Prostudio XLR-Toslink-Hdmi,Peps for the Oppo, amp, pre and subs)
Right now the last little bit of silicon is curing around the speaker cable and it will all hopefully be installed tomorrow.
Once again how much polyfill?