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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: RE: 4th order in phase posted by Leo loves music on March 30, 2025 at 17:35:35:
Yes, i have seen that paper, it's good.
There is a difference tween what they refer to as time aligned and not having crossover (all pass) phase shift in the summed output, "time alignment" assumes the normal crossover behavior which include the group delays..
It's easy to assert "you can't hear phase shift", that is one thing but unless you correct the phase with FIR filters, what could one use for the "without" part of an actual A vs B comparison?
And when you apply an FIR phase correction correctly, which do most choose then?
While preserving the signal waveshape is a given for all the electronic stages up to the loudspeaker, one can also make a loudspeaker that is pretty close to a single point that preserves phase and waveshape.
A Manger BWT does a good job, midrange and above, a Quad ESL-63 does a good job, spectacular if listened to at 6 feet and one can make a full range horn with a passive crossover that can be that correct too, as in that old measurement.
A big difference between an electronic circuit and loudspeakers is they generally disperse the signal in time and space at the source and then deliver a chain of short reflections all of which detract from the original signal's "image".
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Follow Ups
- RE: 4th order in phase - tomservo 11:07:30 03/31/25 (2)
- if I ever gather up enough gelt your design wil be my last buy ... there is no one, schooled superior - Cleantimestream 19:31:07 04/02/25 (1)
- RE: if I ever gather up enough gelt your design wil be my last buy ... there is no one, schooled superior - claudej1@aol.com 05:28:49 04/03/25 (0)
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