In Reply to: Re: Bi-amp crossover question/Rane AC-22 with 3.6's posted by hemholtz on March 9, 2007 at 20:00:31:
Hi helmholtz,A 24dB L-R crossover is designed to be flat (at whatever frequency you choose).
This is bcoz the LP and HP filters are both down -6dB (half signal) at the specified frequency ... and two half-signals sum to one-signal.
You could certainly choose 24dB L-R @ 250Hz but this will move the bass LP curve up a bit from stock and, given the bass panel is much bigger (and slower) than the mid-range panel, you might be pushing it up a bit too high. Hence I suggested to stick to the same "crossover frequency" (ie. where LP and HP curves interesect) as the stock situation ... 200Hz.
However, the sum will be flat in either case.
Regards,
Andy
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Follow Ups
- what would the combined frequency response look like 24db per octave? ... - andyr 14:26:57 03/10/07 (0)