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That was NOT the fundamental premise!!!

I said "As far as I know," because I am familiar with only three such programs. "Auto-BSC" was not on any of the lists of features. I was talking about "Auto-BSC" and perhaps I was not emphatic enough on that. (I have no experience with the very expensive modules from Loudsoft.com. I am told that Harbeth uses those.)

I had a phone conversation with the designer of the program I believe to be the most respected package (X-over Pro version 3) and he said that it was not part of his software and that he did not envision it as a possible feature of any "Insert the data, press 'Process' and you get a crossover design" packages, because there are too many cabinet-related variables.

Regardless, my point was that Baffle Step Compensation, as important as JA and I (and apparently you) think it is, is not something that every loudspeaker designer thinks is worth the trouble.

I was surprised as all get-out when JA commented upon the apparent lack of BSC on a very expensive solid-rock-enclosure loudspeaker he was measuring. I thought that with all that money on the table, why no BSC?

"Though the response in the crossover region is flat, there is a broad peak in the upper midrange, which implies a lack of baffle-step compensation in the crossover. The tweeter's output between 5kHz and 20kHz is 3-5dB higher than it is in the presence region, almost matching the level of the midrange peak."

john




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