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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="rowuk"]I have experimented
with SS/SET and now DSEP for ceramic magnet horn drivers. I will agree that
ceramic drivers with SETs that I have heard being suboptimal, but after a year
of DSEP, at least for my use case, I am quite conten...
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I got a forwarded email today containing the Lamm Industry’s release notes about their new SET amplifiers.
http://www.GoodSoundClub.com/PDF/LammML3.pdf The good thing in this is that Vladimir is still Vladimir and he did changed since the Rich ...
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[quote user="cb"] The bias voltage I get on the 6e5p is around minus 4.4v on both the circuits. This is with the inputs shorted. With the inputs connected to adjust voltage to 0.0mvdc, I get a reading of plus 0.4vdc. This is with VR1 set at maximum (...
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The Other End of the Single End: Modern Horns Done With Flare An Interview With Dr. Bruce Edgarby Dave Glackin, printed in POSITIVE FEEDBACK. 1996
Dave Glackin interviewed Dr. Bruce Edgar in his home, prior to the 1996 WCES. A follow-up on the speak...
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I don't have a problem with what Lamm has done in offering the ML3 (ignoring the price)... If I have a problem it is more related to how the product is being represented. Representations aside, depending on how it sounds, the ML3 could well be a prod...
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Well, it is very obvious what MiniMe needs. The speaker is begging for multiamping. The speaker has 2 distinctly different sections. The HF section has 4-5db higher sensitivity and SET friendly. The LF section needs 100W of output impedance that deal...
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I received an email from a visitor who is involved into the electricity fight and he pointed out that my hypothesis might or might not be accurate only in context of eliminated large distortions. According to him the very high levels of harmonic dist...
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I detected that the Water Drop tweeter has VERY interesting ability to react to the stage of out stage. I am driving the Water Drop with a full range Melquiades SET. As you know the full-rage Milq use a moderate Lindale transformer with a juts 200mA ...
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I do not care about all of Nilsson Pass amps; I feel that all the same and all are very sub-qualified. A few years back Mr. Pass went for his low-powered SS single-ended amps and they might be more interesting. I do not have them and I never seen a...
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You can build DSET for anything. DSET concept does not imply any topology but recognition of purpose and accommodation of a topology for the purpose. Generally the 93dB sensitivity is not something that I would attack with SET, unless you use SET aro...
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[quote user="Teflon"]I'm interested in bi-amping so you have my interest - if you say a SET has a 'topological limitation' what is the ridiculously simple change needed to make it good for LF operation ?I was previously thinking about using triodes i...
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Yahoo! I was able eventfully to educate myself how to get out of the “Melquíades” the sound that I needed (using some blood injections from Dima)! Now the project with the “Melquíades” amps is slowly converting from a labor to a pleasure!
“In ...
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Bill, of course I supposed the DSP-free sound would sound better than processed to me, based on my experience. I just wanted to know how you felt about it, when it was put like that. I went to big SS amps despite I prefer the sound of small SET amps,...
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... has claimed it's toll on my side too on the Christmans Eve...strange and beautifull time.My deep condolences, RomyN-set...
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Maybe we should just start by trying to think of a viable way to get down to 20 Hz in a reasonably sized enclosure driven by an SET that must also drive the rest of the system. This was always the sticker for me, and this was a major ...
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"Indeed for classical work I often find a slightly under damped bass response to be emotionally evocative and of benefit to the illusion of the acoustic"Have you looked at the primary cause of this issue with most SET amps? I can tell you that ...
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Thanks for the tech info, Merlin; it helps a lot, especially combined with the preferred music revelation, up the thread.I agree that the OPT figures in to the sound, all right, for better or for worse, and there is no mistaking the OTL "clarity" by ...
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Well, if you do not have anything user 35Hz and have low sensitivety then the passive might do. Still in future, when you feel comfortable with your passive unit you might for the sake of self-education try an following experiment: Guy Hummel use to ...
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I have the 515-Gs If I remember correctly, and I am trying to find suggestions on what is proper horn-loaded cabinet still. And I agree my tannoy golds so far have worked best with early 70's mcintosh 2205 (200w/channel). Otherwise I am a...
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As some of you know I’m playing last couple days with Red 10” Tannoys from 60s. My selection of 10” was not accidental -I would like to get as less as possible of that “Tannoy bass” but I did run very far the “Reds” turned out to have 27Hz open...
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Hi Romy,I have a couple of theories as to why I wasn't able to get to the "VTA sweatspot" before I tried the microscope method. The first is that my "baseline" (using the ice skate tool that wally sold me) was so far off that the range I was workin...
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I am in the process of setting up a DAW to record fm broadcast. Recently I installed a M-Audio 2496 DAC in a computer to do the recording. I am using a Yamaha T-85 tuner. Prior to routing the i.c. cables through the DAC I had no background noise f...
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Can you remind us how & why you arrived at the resonance frequency you have set for these drivers in this particular horn?...
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[quote user="Vasyachkin"]the only real questionable aspect here is adding a second set of back firing, inverted phase horns. mathematically speaking it is what the design "needs" but of course the real question is - what does it sound like ? that's...
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Here is the cold, hard truth, staring us in the face, that this part has to be right before any of the subsequent embelishments matter.Although I have blabbed at length about the silliness of the "average" VTA setting, and I have gone to some len...
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So many "parts" to a particular hi-fi system, and not just the gear, and so many reasons why a given system turns out the way it does. Didn't Amir say he doesn't listen to a lot of classical music? I was pretty happy with tubes for quite a while, inc...
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Jarek, how many 10" Scanspeaks do you think it would take to get way down in your room? And remember that, according to Romy, the "best sounding" Dannoy, the heart of this speaker system, still only plays up to 90 db peaks (70 dB continuous with seri...
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This is my first post here, so bear with me if my set-up isn't as sophisticated as yours.More and more as of late I started to notice that records exhibit surface noise that was less pronounced [or absent] before. I bought this cartridge 5.5 years ag...
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It turns out that I have up to now done a very poor job of guessing a record's thickness just from looking at it or assuming thickness based on the label, so measuring thickness and developing a corresponding arm height adjustment stra...
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Hi Romy,I do believe that you can benefit from the study of making violins. It is one of the few instruments that are essentially "finished" in development. They have an essentially perfect string length for the played frequencies, the body size and ...
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