In Reply to: RE: Fine exercise but instead... posted by JBen on March 31, 2012 at 16:26:29:
I read today somewhere that delaying the high pass output as you suggest makes it possible to integrate a dynamic woofer with an electrostatic mid without seeming to slow things down. I'm skeptical, but the claim did arouse my curiosity.
I don't think I've seen a commercial analog crossover that had an all-pass filter built in. The guy who made the claim used a Behringer. Also, I wonder whether adding an allpass filter would do more sonic harm than good. But you might want to take a look at Linkwitz's site, somewhere he provides the schematics for an active all-pass filter for use in group delay audibility experiments. I don't remember the details, whether it used op amps or was discrete.
What we really need is a digital lowpass filter with an advance line . . .
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Follow Ups
- RE: Fine exercise but instead... - josh358 16:38:43 03/31/12 (3)
- RE: Fine exercise but instead... - JBen 16:49:59 03/31/12 (2)
- RE: Fine exercise but instead... - josh358 18:15:09 03/31/12 (1)
- RE: Fine exercise but instead... - JBen 18:42:55 03/31/12 (0)