box thickness for Titanium?

I'm putting an Eclipse SW9122 12" Titanium sub powered by a Xtant 1001 in my SRT-4. The sub will be mounted in reverse (firing into the box, magnet out) and was wondering how thick I should go. The top and sides are FG while the rest is 3/4" MDF. It's about 0.9 cubic foot. I have the box built and was about to start sanding but would like to reasure myself it will be strong enough. I currently have 1 layer of fleece and 5 layers of 1.5oz matt. Can't measure the actual thickness anywares but estimate 1/4" maybe a 1/16" shy of that. Used 1 and 3/4 gallons of resin. Think this is enough that I won't have to worry about the bondo and paint cracking?

That sounds like the bare minimum to me. I usually go 7-10 layers. One way to tell is put pressure on it with just your thumb. If it don't flex under your thumb it won't flex from the speaker.Nik

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Thats a bad ass sub, so i would definately put at least 8 layers of glass.  Im up to 10 layers on my box for 1 brahma, i may actually go 2 more since we are playing with 1000 +watts here.2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

I have 12 layers of 48 oz mat and 2 layers of 3.2 ounce fine weave. on my box and its just for an L5Life is about linking the past with the present and the old with the new.

Thats like WAY overkill but you won't ever have to worry about say....a bullet penetrating your box.Nik

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Well I kind of attempted to build the box b4 I really knew what I needed. Fiberglass isnt my thing. But it shouldnt resonate and If i ever need a ramp for my car I'll have an extra.Life is about linking the past with the present and the old with the new.

Hey, having a speaker box that can hold 2 tons just might come in handy.Nik

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Hey The sh*t ain't cheap gotta make it multi purpose.Life is about linking the past with the present and the old with the new.

thinking outside the "box" got to love it!!

All Bleeding stops.....eventually!