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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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John, I am bit puzzled with your response. I do not know what would be a proper material for cone/dome of diaphragm. The source where “tone” is born in compression drivers is absolute mystery to me and I in my holly naiveté believe that no one else k...
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[quote user="jessie.dazzle"] Is the S3 as sensitive as the S2? [/quote]
Yes, they are appearing to be the same sensitively.
[quote user="jessie.dazzle"]I keep telling myself that I am almost done making horns, but I keep having ideas to try...
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Hi Romy:as I don't consider the thread as emptied, yet, I'd wish to add some thoughts after more days of listening to my system.I re-read an half-page chapter in French from Jean Hiraga's "Les Hautparleur" essay, concerning time-alignement and p...
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[quote user="Murataltuev"]Ok, I give up...I'll keep TH separated.DBA concept is interesting and I don't understand why it is not common in Home Cinema or studio installations.In my case I'll consider to make double TH - one pair in front and position...
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Putting together a speaker system that ticks all your boxes is a lot like doing anything else well: it is fine to experiment in order to find your range and learn your options but once you choose a path you must stick to it. Chopping and changing i...
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Nope, it was not a joke. For sure it is not the “whole point in a compression driver” but it is very much derivative from the compression driver design and anything that a compression driver has on back is irrelevant and impact only resonance frequen...
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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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This project started in 2007 as an attempt to demonstrate that drivers different from the widely accepted low-Qts ones could be used in a back-loaded horn enclosures.Visaton BG13P, a cheap and easy-to-get (at least in Europe) driver was chosen, basic...
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It does sound like a shoping list, not my intention, I was mainly trying to address some points 3 mainly:1- You have stated before that the 2440 or 375 is a good sarting reference, so I wanted to keep that comparison point. thats why I went back t...
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Here are some of my observations regarding the Wolf von Langa RCA 1428 replica. I long time wondered where mr. von Langa gets his phase correction elements and the diaphragm for his RCA 1428 replica. It's obvious that a niche-manufacturer such as W. ...
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Romy wrote:"...It would be interesting theoretically to try the new S2 drivers and to see if they any different than the vitage drivers with new Mike’s diaphragms. I say theoretically as I am not planning to do it. if the new production of S2 units ...
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[quote user="ulf"]One advantage of the use of a phase plug in a midbass horn is that it will beam less at higher frequenzies than a horn without phase plug. If the phase plug is designed for the specific horn and driver it will help "steer" the HF.
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Hi thereFor some time its bugging me that compression drivers got a very heavy but odd load of air coupling on the membrane. I saw a scatch here to put ideally 2 Horns on each side of the driveway to balance it. That's obviously not so economically :...
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Josh, I am not sure what you want to say. If you looking to name the reason why you like the sound of Gotos then you are guessing as much as anybody else. I can tell you even more. I very confident that the Goto folks themselves are guessing. I do no...
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For all I know, "alignment" is digital. And IMO, so far, "super hard" tweeter diaphragms have not lived up to their "reasoning". In fact, I would have to say the same for any direct radiators with "hard" diaphragms that I have heard to date. Agai...
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[quote user="Romy the Cat"]The whole point in a compression driver is that anything in back chamber is irrelevant. [/quote]Hahhaha, good joke! :-)[quote user="Romy the Cat"]Haralanov, all that you need to do is to make your own experiments, the pract...
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Hello Dan,Love how you pass that cable through the port, I used to do that too...long time ago.Why are you crossing your 250hz horn all the way up to 1 khz?The 2445 should be able to go much lower. Have you measured the response you are getting from...
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jd wrote :
"... I am convinced that the key to tone lies in the resonant properties of the material(s) from which it is made, and of course its architecture..."
jd meant :
... I am convinced that the key to tone lies in the resonant properties o...
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"Architectual" (man-made) joists have some decided advantages over natural lumber, including excellent unit-to-unit consistency. Most residential "TJI" joists (as opposed to beams) are made straight and installed without an initial "crown" (manu...
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Once again, let make it the last post off the subject of the 5-chals Milq.
I think it make sence to start from 370Hz-400Hz horns for S2, targeting it for 1000Hz. Then the lower bass horn, for instance the 45Hz, however it should have a chamber of m...
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Nice site, Romy! Space is the Bomb!Regarding the remodel, it would be easier to speculate if we had some photographs of the areas we are discussing.At this point, speaking abstractly, it looks do-able, even if those rafters are trusses that had to b...
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Romy criticizes the absurdity of taking the "sound" of a live performance -of some serious music- as the rule against which to measure an audio system's performance. There's no way reproduced sound can be a perfect copy of natural sound.However there...
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[quote user="haralanov"]…. acoustic filter does not rotate electrical phase of the signal. [/quote] I do not think it is correct. The rotation of electrical phase is not the subject of filtration method but subject of slop and Q. Of you write the sam...
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This is my current 4-way GOTO setup. I know it is in no way optimal but I am interested to find ways I can improve it's layout.
GOTO SG-38WN woofer in 360L onken cabinetGOTO SG-505TT mid-low driver with Azurahorn AH-160 horn (160hz le'clech profi...
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Of course I am not really talking about Rullit but only holding up his implimentations against his stated aims. This is certainly no special case, since most smart people learn the talk and the "look" long before they learn practicum, if they ever d...
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I am currently planning high-WAF speakers for my sister which have to stand in the corners on the floor. Asking for small corner horns I was told the EV Baronet could be a solution. Simulating it with roughly estimated dimensions I found that the FR ...
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Well, I do have 3 channels of DSEP. Dedicated Single Ended Pentode: one channel (bass/mid 30-500 Hz) with a 307A DH pentode feeding two wonderful Fane neodymium Colossus 12" - one from FS to 150 Hz and the second from FS to 500 Hz. OPT with a lot of ...
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CV,All that you point to is quite correct. My comments were based strictly upon which coil voltage would be a superior sounding electromagnet. The only benefit I can see to a higher voltage is the faster rise time in the voice coil of the induced EM...
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I have been using my Ekornes Manhattan chair and generally I am pleased with it. It is a bit not deep enough for the taste of my ass but with footstool it works fine. There is however an aspect in all of it that I do not likeand that I did not think ...
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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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