7 pi and lots-of-windows question


Greetings all,
I'm adding an 11' x 21' x 8' high sunroom on to my house. I'd like to put speakers at one end and was wondering about the combination of 7 pi cornerhorns and 20' of glass on one wall. Ceiling is broken up marginally by partially exposed beams, floor will be tile or stone over two layers of 3/4" ply.
I have most of the components (Eminence) for a pair of 4 pis, which look a lot like the components for the 7 pi.
Will the glass suck up enough bass to nullify the advantage of the cornerhorns?
May I have the plans for the Theater and Stage 7 pi?
Thanks very much
John


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