so i'm gonna take a stab in the dark here and say this is 3/8" ply? looks a bit thin there bud. also, those frosted looking pieces on the lower part of the sub enclosure, how thick are those? they look alot like flourescent light diffusers to me, and i know those things are barely an 1/8" thick. please tell me that i'm guessing wrong here.
my reasoning so as not to sound like a prick:
3/8 plywood will resonate like a son of a b from the air pressure of the subs. the sound can be pretty damn annoying.. if it is 3/8", i suggest doubling it up to stengthen it .. OR .. bracing it from the inside.
as for the plexi comment, same thing.. has to do with the pressure. if it really is 1/8" stuff, it will most likely crack from the air pressure. the stuff isn't very sturdy (unless it's lexan, but i've never seen lexan like that) and cracks easily. i mean shit, i use 1/4" minimum just for windows over amp racks.. for a window in a box it'd be either 1/2" or 3/4" depending on the size of the window.
anyways, best of luck to ya.. i hope it turns out well and gives you the sound you're after. i'm also curious as to how you're gonna finish off the upper section..
Yup, that is what I was trying to point out. I dunno, I guess it's just that when you can pick up a sheet of 3/4" inch MDF at your local hardware store for less than $25 with tax, it just seems like such a waste to use plywood especially since you are doing a bandpass enclosure as it is going to rattle like splintered wood each time the subs hit. I guess it is just me but if I were cutting costs, the wood would be the last thing that I would cut costs on. It would also eliminate the need for that imitation dynamat stuff that you are using. Once again, I am not knocking your work on it as you have done a hell of a job given the materials but IMHO somethings just aren't worth bothering with if you can't do it right the first time.
