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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Some drivers have a rising db curve from low to high frequencies. The horn may help with flattening the FR. If the FR of a given coaxial compression driver is flat, I would agree with your conclusion....
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It is very easy to figure out acoustically. Feed the drivers and their crossover with a reference tone of fixed amplitude and fixed frequency, roughly in the middle of crossover point. Disconnect one of the drivers and measure the acoustic pressure e...
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Johan, I understand what you are saying. This is kind of James’ barn thread and if you do not mind can you share with him one thing, I think that many others, including me, would be interested to learn the answer to this question: What did you gain g...
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BTW, to illustrate my point. Here is typical Goto inhalation. In fact this is the better among others as to be typical the MF divers need to be lined up horizontally. I can hardly believe a person needed to be more Moron to voluntary arrange drivers ...
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I like those ideas for tuning texture, and would add the way the surround is done and how it is clamped/bedded, which might be relatively easy to control, maybe even on the fly (with some sort of cam, for example). So far, it seems to work best to "...
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[quote user="zako"]THE ONLY COMPANY THAT HAS ADVANCED THE DESIGN OF A MODERN DRIVER IS JBL,,, GOING FROM THE WESTERN ELECTRIC DESIGN TO THE 375,,376...PRO VERSION 2440,,2441... TO the 2450 types..USEING COHERIENT PHASE PLUG DESIGN TOPOLIGY that unit...
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[quote user="CO"]I have tried a BMS driver a while ago and it was really bad.
About a year ago i heard Berts setup at his house and it did not impress me... It was also with the coaxial BMS.Not much depth or resolution. Did have alot of power though...
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[quote user="MINGSU"]GOTO always recommend to use 1st order active crossover and 2nd order passive crossover. The reason to use 2nd order for passive crossover is to protect the driver. Of course, the user can use whatever they like the best but the ...
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Cat:First off, the Silbatone Aporia is $30k/pr not 100k. You could do 6 speaker surround with Aporia for well under $100k. Hope you feel better now."So what," I say. $30k is already too much for my pocket. I am on a fellowship this year and cheapskat...
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I was right before but now I really review my rightness for a new perspective. Yes, the compressions drivers are the subject of clean signal but it what I witness with the new 6-chenals DSET put what I said above in another extreme dimension. I do no...
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just got it that you meant the diameters,of course its around 65%. i always calculated the throat-size with the area....i really would like to get a second pair of s2´s but i think right now it would be difficult even if i had the money;-(((if i go f...
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Thanks, Eduardo, very interesting. The YL 75000 has no phase plug and 70Hz with 1” trout. It look to me like a conventional diver. Which beds a question: if to reduce compression with our classic drivers, loose plug off and reduce power then can we ...
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[quote user="MINGSU"] Since they are very old pair of driver, I will recommend you to send them to GOTO Japan to make sure the driver are up to the spec. so you can be sure …. [/quote] Ok, but then they need to send them to me then in order I inform ...
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The thing I notice with live music is the way the sound at all audible frequencies has articulated drive like I never hear with "true HF tweeters", or at least not the "tweeters" that go way up there. I got some sense of this drive and nat...
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Yes, the tamed beast is an oxi-moron. I thought of my 808s as ragged, rough (grainy) and spitty, while the S2 was also ragged/uneven, but the roughness was more like the sound of a metal zipper. Anyway, I never heard either of these stock drivers m...
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Ok, since you people stop to drop the euphoric saliva around the Goto subject I think it would be worth to outline my interest in Goto. Not only worth but I kind of feel an obligation. I feel that my site surprisingly has become a resource that ...
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I have heard some nice speakers in Germany using the Mundorf Air Motion Transformers. No saliva, ample "substance" in their tone and a very nice integration.http://www.mundorf.com/AMTnews/MUNDORF_PRO_AMT_FLYER_2012.pdfhttp://www.enjoythemusic.com/sup...
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[quote user="rowuk"]I have heard some nice speakers in Germany using the Mundorf Air Motion Transformers. No saliva, ample "substance" in their tone and a very nice integration.http://www.mundorf.com/AMTnews/MUNDORF_PRO_AMT_FLYER_2012.pdfhttp://www.e...
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[quote user="Macman"]Hi Romy,Its an Altec 416-8A driver in a ~100 Hz exponential horn, Jbl 2441 in 350Hz tractix, Aurum Cantus G1 tweeter and Eminence Definimax 4012 HO in ~30Hz Tapped horn.I just hooked it up and the highs are promising but I though...
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Hello,This is my first post to this site, which I have been absorbing for over a year.A horn project that I have been considering would include either a 1 inch or 1.5 inch throat compression driver into a Tractrix profile horn of which I have not yet...
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Thanks for your quick reply. I have been to assistance audio`s website, however was unable to find such model, but is possible they just disassembled the tweeter or whatever.This is really interesting news, about their violin reproduction, me too wou...
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compression drivers are the way to go as far as i am concerned but obviously performance depends on the horn lens.my beef with ET-703 is that i don't understand its horn or whatever it is. if not an explanation i would like to see maybe some po...
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Absoluitely! The bugscreen is an effective diffusor, if it has been installed correctly. The removal (of other compression drivers) bugscreens is indeed a touchy subject, which I only reccommend if it is fully reversable. And yes, I have used nylon p...
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[quote user="amdismal"]The crossovers were fourth order, which is what I use on my horns. Second order, I have found, can give a better blending, but reduced the delicacy and transparency in my system. But it's very complicated, and further exacerb...
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[quote user="Romy the Cat"]
I do not know any advantages because the fact that the sound softer. I personally believe that the electromagnets have HIGHER MOMENTUM FLUX MODULATION and that make them to “sit” slightly… or exactly what I would like t...
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Decoud, I do reject any speculations about flux modulation in compression drivers as I do presume that it is absolutely negligible. It is like using a SS amp with ultra low output impedance, to drive a ribbon tweeter and to worry about return current...
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[quote user="oxric"] So, yes, in an ideal world, I would have seriously considered doing something different….[/quote] I guess your definition of “doing something different” would imply reading of 534 pages of BS from people who have no idea about ...
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[quote user="oxric"]Mike duly explained to me that he would not vouch for the work of anyone not qualified and experienced with Vitavox drivers, given both the complexity of the work and the number of parts that go into making these drivers. I as...
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If you ask me the compression drivers is like the jbl 2420/2470 design only with an other back chamber. And the low freq driver really makes me think of an old alnico driver of jbl 2220A http://www.lansingheritage.org/images/jbl/specs/pro-comp/2420/p...
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[quote user="Romy the Cat"]It is was not bad sound but the sound that clearly indicated that something is very wrong: supper compressed, complete absent of LF, huge HF extension. The whole horn sounds like a bad MD driver.[/quote]Open the back panels...
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