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  Time coherence - how important and what speakers?
I have been reading alot about time coherence in speakers. I believe that the Vandersteens and Josephs are time coherent.

My questions are: Do think this is an important issue?
What speakers are time coherent?

Thanks.

Richard Bischoff
Rbischoff  (System | Threads | Answers | This Thread)

09-14-02
  Responses (1-50 of 155)
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09-14-02   There are a couple of other brands too - thiel, for one. i ...   Blw

09-14-02   Bound for sound just wrote a piece on this in their new issu ...   Ozfly

09-14-02   Http://sound.westhost.com/ptd.htm "do think this is an ...   Ezmeralda11

09-14-02   Sure time and phase coherence are important, but these are o ...   Soix

09-15-02   Just because a speaker system has a sloping baffle does not ...   Bigtee

09-15-02   Far fewer speakers are really time-aligned than you might th ...   Karls

09-15-02   Some consider time and phase coherent extremely important es ...   Stehno

09-15-02   While i have heard speakers that i enjoyed that weren't time ...   Unsound

09-15-02   Any single-driver speaker, whether cone, walsh, electrostati ...   Karls

09-15-02   I may be wrong but i don't believe that karl's statement is ...   Bigtee

09-15-02   Two points for you bigtee. number 1 - if the highs travel ...   Twl

09-15-02   Some of the audio physics and lowthar(?) designs might qual ...   Unsound

09-15-02   I just came off of 2 physics websites regarding the speed of ...   Twl

09-15-02   Twl, i'm in over my head here, but i won't let that stop me. ...   Stehno

09-15-02   Stehno, the 1st order crossover alignment, which consists of ...   Twl

09-15-02   Twl, only first order filters are phase coherent, no excepti ...   Karls

09-15-02: Twl
Karls, thanks for the clarification. I was under the impression that the capacitor or coil shift would be additive to the reactive element, and not be cancelled by it, in a first order configuration. Is this fully proportional, or are there some varying degrees of shift that are not cancelled ?
Twl  (System | Reviews | Threads | Answers | This Thread)


09-15-02   I think we could discuss this subject for a long while and g ...   Bigtee

09-15-02   "science has proven a bumble bee can't fly but it does& ...   Ezmeralda11

09-15-02   I didn't read every word in this thread, but it started by l ...   Suits_me

09-15-02   Karls, i believe that john bau of spica designed time coher ...   Unsound

09-16-02   Well, i'm going to take one last technical stab at this. wha ...   Bigtee

09-16-02   Time coherence is difficult to achieve because the acoustica ...   Audiokinesis

09-16-02   There may be more than one way to skin a cat. john bau's cla ...   Unsound

09-16-02   Unsound---they lied! it has to be a first order filter perio ...   Bigtee

09-17-02   This topic comes up every few months. designing for phase co ...   Josephaud

09-17-02   Josephaud, to answer your questions: (1). time and phase co ...   Unsound

09-17-02   I'll take a stab at joseph audio's post: first of all, no on ...   Karls

09-17-02   In response: unsound: please allow me to expand on your com ...   Josephaud

09-17-02   In response: karl, it's possible for higher order crossove ...   Josephaud

09-17-02   Man, i'd like to see richard vandersteen and joseph audio ge ...   Bigtee

09-18-02   Josephaud, let me return the favor, (1) the fact that you s ...   Unsound

09-18-02   Mr. joseph wrote: "i've found that other things such a ...   Audiokinesis

09-18-02   Unsound, you may have misinterpreted a comment just as i did ...   Ozfly

09-18-02   I am not about to slam on joseph's speakers, because i think ...   Karls

09-19-02   Ozfly, at the risk of appearing petty, joseph still couldn't ...   Unsound

09-20-02   Time coherence is as important as the amplitude response mea ...   gma@

09-21-02   Listen to roy johnson ! then go listen to his speaker's.the ...   Chaz

09-22-02   I don't see a web site for green mountain. where can i get i ...   Unsound

09-22-02   Hi, i am buying a pair of green mountain c-3's, should be h ...   Telescope_trade

09-22-02   The green mountain speakers look like a serious acoustics ex ...   Judit

09-23-02   Greenmountainaudio.com will be published in the next few wee ...   gma@

09-23-02   They are not tuned to your room, but "focused" to ...   gma@

09-23-02   Great post, roy!   Karls

09-24-02   I feel the need to try to set the record straight regarding ...   Josephaud

09-25-02   Now we're getting somewhere. designers sharing the merits an ...   Unsound

09-25-02   Every speaker design is a compromise. the perfect solution i ...   Bigtee

09-25-02   Bigtee, i agree that there are trade offs in every design, ...   Josephaud

09-25-02   I don't have the means or ability to test my listening impre ...   Unsound

09-25-02   Jeff, the last statement you made about "truer" so ...   Bigtee


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