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Message: <blockquote data-quote="SuperJay" data-source="post: 7006729" data-attributes="member: 620494">Since you're really only asking about the glass that's what I'll address.you're going to have 44 layers of laminated wood (about 4 inches), and only 3/4" of brittle acrylic or PC.  with 15ft^3 of airspace I can only assume you'll be using multiple large diameter subs.  This means LOTS of pressure and flex.  The enclosure walls will flex differently than the PC will, so you'll have to overlap a lot more than you'd think...maybe 3 inches.  double rows of pass through bolts and enough silicone to float your house through the next Katrina.I think, to be safe, you'll want to have 2 layers of 3/4" PC sandwiched between the inner and out layer of birch.</blockquote>

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