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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I go to the Amtrans store a lot but have never listened to the GIPs because they are just too expensive (60k, 180k USD etc). But I think I was informed that these were fanatically replicated Western Electric speaker system concept, but where possible...
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[quote user="Paul S"] Any ideas for sources for 6AK5 and 5651A? Seems like most of the ML2 tubes are "hard to find" from local sources. [/quote]
I do not know why you say it. Both 6AK5 and 5651 are very common and very inexpensive tubes. The 6...
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I spoke to the owner of the company. The drivers are copies of Western Electric 555 (but the owner insists that they use genuine NOS WE diaphragms membranes) but they can be custom made to fit in with one's requirements. I didn't know such a thing wa...
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Romy, whether intentionally or otherwise, "murky waters" is a beautiful metaphor for the Western Electric route, in my experience; that said, just because something does not exist, does not mean that I might not be made so with a less hidebound a...
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[quote user="eduardo"]
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ir...
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Yes, Rulit does try to push envelop of something. He does exiting projects but I do not know how all of it manifests itself in actual results. I said that he pushes the “envelop of something” as I do not know what this “something” is. I never h...
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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="Paul S"]Merlin, won't you at least put your amp in some sort of meaningful context, because it is a waste to continue this thread if you just treat it like a pissing contest.What speakers do you use? What sources, etc?&nb...
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The only problems I've discovered with the old RCA blackplate 45s are limited frequency range and power, and lots of used tubes sold as NOS. In fact, to be fair, I would have to narrow known problems down to power alone, since I can only guess what ...
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thanks for the responses doc and romy-much food for thought- but what i'm thinking, or at least extrapolating from what you're saying is that the possibility exists that i AM measuring what i think im' measuring.i have a good friend who is very...
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The history of stereophonic sound
1881 - Clement Adler at the Paris Electrical Exhibition put "a series of 80 telephone transmitters across the stage at the Paris Opera and connected them by wires to telephone receivers in a suite of four rooms" in ...
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[quote user="ayebee"]An observation that might only be of superficial interest to the thread: I don't think the speakers use Klangfilm woofers. The pictures are a bit grainy, but the dustcaps look far too big for the original Bionor woofers. I would ...
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hi Romy. Agree, didnt talk too much to him but you can feel having bit of empathy that hes a very warm hearted, relaxed and polite decent personality. Looks like a righteous guy. Also wish him best. Why im still writing this here? I dont think theres...
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Hi jd*thank you for caring, and encouraging me to wade through all of this horn info. I'm 63 by now, not sure if I'll ever get out of there alive before I'm done though...Romy posted some picture about a commercial horn (Western Electric WE15) th...
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A typical switching supply does not evenly load the input (sinewave) power source and can create some dirt on the AC line (Paul's "backwash" statement??). Depending on many variables, the amount of contamination the switching supply could contribute...
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In the link above the last show report sentence is' ...Folks ...this Stuff is un-believable 'The writer must be totally deaf. This demo was imo the worst in the last 5 or 6 years I had the chance to listen to. Static, cold reproduction.... Joe Robert...
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Well, I was there, which is more than The Cat can say. In fact, The Cat never heard a complete WE system first hand, so I'll have to take that into advisement when the expected foaming-at-the-whiskers rant.I always wonder why people would giv...
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This thread has been pretty interesting overall. I've read most of it and would at least like to provide some feedback on the technical side of designing with the 45 and 2A3 DHTs... at least from my personal experience. A few years back I decid...
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It was honestly like "oh a big horn, gotta listen .... nice, who did that, hello, how did you..." .... "lets go outside for a talk". I actually thought to the last moment that they were japenese. Coz majority of eastish industry is, and me as western...
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Well, I cannot say that i have much interest in the installations on his Facebook page and this should be a strong indicator of the type of audience being targeted by the driver manufacturer.Nonetheless, he has sent me some frequency responses, but n...
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I bought those tweeters for Be Yamamura (second hand from Paul at Wembly Loudspeakers, in London) I also took Be to Heathrow Airport to take a plane to Brazil to install one of his truly superb VT4c stereo amps! It was the morning of a great wind ...
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The AudioFederation guy posted pictures from RMAF show with Cogent room. (The images are courtesy to http://www.audiofederation.com)
I was wrong in my previous post, as Cogent did demonstrate their loudspeakers with Ionovac ion tweeter. Yester...
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I have identified a direction for my next speaker system. Whether it is a good one or not is a different topic -- I think it's a good one because I've lived with my current horn system for 10 years and have since developed an understanding of it's st...
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[quote user="Paul S"]Murat, that's a lot to ask from one driver. [/quote]1000-12 000 is 3.5 octaves.300-3000 is a bit less.[quote]In any case, if you do get useful results with the paper driver, you will have to turn right around and integrate it bac...
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[quote user="Romy the Cat"]So, I guess you do not measure flux if are getting. You might measure sensitivity and we might presume what when perm magnets has the same sensitivity as electromagnets then the drivers have the same magnetic flux density. ...
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[quote user="Joe Roberts"] I feel I am being objective when I say that a Mirrophonic system simply blows away Altec, Vitavox, TAD, etc. [/quote]
Joe, I am not a reader of your magazine and the phrase like “blows away” impress me very little. P...
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[quote user="floobydust"] I'm lukcy to have a large stash of NOS 45 ...[/quote]Recently I visited an estate sale on western part of Boston. I usually do not go to such events but I was attracted that I was promised 100s tube radios, 1000s tube and 1...
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But here it is. I made this monoblock fit into less than a square foot. It is tight. I use Hammond iron throughout. Their stuff usually works pretty good for power supplies. I have some photos at my blog. [img]http...
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Cat...your ability to look at a picture and diagnoseminutae of sound and even the character of the system owner is impressive.As you know from previous discussions, I am a fan of direct experience as a discovery procedure over intellectual manipu...
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I was sitting in the pub a few years ago and overheard a conversation between two audio engineers. They had been drinking for a few hours and had reached the point of grand challenges & wagers."I can assemble a music reproduction&n...
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