I am going to build a small center channel speaker using an 035ti and 2 115H-1 drivers to try to get a little more fullness than the 4406 design. Could 4406 or t20 crossovers be modified to accommodate the second 115H-1? Or should I use 2 4406 crossovers ignoring the HF side? What would happen to the crossover point & response curve if I just put the 115s in parallel using just the original 4406 crossover? Is there a recommended "layman's guide" or software that would help me design this sort of thing without needing extensive measuring equipment and complex (manual) calculations?

Thanks for any suggestions, Terry M.
PS: The other speakers in this system are: Main: L150 w/104H-2 Mids and 4406 surrounds in a very large (6K+) room.
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