On Wednesday 12 January 2005 20:38, Jan Depner wrote: > Yup. I sure as hell couldn't figure it out :D If the patent > referred to is dated 1982 it is certainly out of date. I doubt if any > patent applies in this case as Rane and others have been using per band > delays in crossovers for years without paying anyone royalties. The > maximum delay per band that I have seen is 2ms. > > Jan I have used (not just seen) delays of over a 100ms in a speaker system! Think a crossover with the subs under the stage, a flown set of mid high boxes either side AND a set of fill towers 100ft away from the main stage.... Now I will grant that this sort of application is a little specialised, but I think that time alignment between a mid/high array and a horn loaded sub could well be 2ms even if the whole thing is ground stacked. Roughly speaking 1ms is one foot of path length difference. Just to clear up why crossovers (and their more modern brethren, loudspeaker management systems) have per band delays. Regards, Dan. ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Jamin-devel mailing list Jamin-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jamin-develReceived on Wed Jan 12 16:59:06 2005
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