I FOUND THE PAPERWORK. It say's the R.T.A.11 share's the same low frequency "section" cabinet as the (r.t.a.12b) It also use's the same 6 1/2" drivers, and the same12" planar fluid-coupled subwoofer and 1" moving coil high frequency radiators as the 12b!! The cabinet is 33 1/2"h x 16"w x 11 1/2"d The performance of the 11 is remarkably similar to that of the 12b. "it say's" Now all I have to do is find a set of SW 120 PR'S or a suitable replacement!! According to Polk's site their there! Thank's to each and every one of you who tried to help me!! :D ;)

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