I've decided to go with building some Theater Four Pi's, and after considerable discussion with Wayne, my variant will use the Eminence Kappa 15LF driver instead of the Delta 15 because I want smaller cabinets. He says the Theater Four Pi crossover will work just fine with the Kappa 15LF and my wife would much prefer the 3.5 cubic foot cabinet that I can build for the Kappa as opposed to the massive 7+ cubic foot cabinets required for the Delta 15 in the Theater 4 Pi. George (replay) has built the Stage 4 Pi (see his picture in this thread) and it also is a smaller cabinet than the Theatre 4 Pi as built by Till E. (see posts below).

Colin