The glass isn't installed yet, but it'll be silicone-gasketed in place so it shouldn't (won't) rattle. The room dims seem OK for corner horns? I was concerned about standing waves with the length 2x the width. Also, NICE GOING on the "Shopping Cart"! Prices are good, and the one-stop shopping is right on. Couldn't find PI decals, though, how do I go about acquiring a couple of those? Thanks again for the plans. John