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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I am sorry, I made a mistake, I my post above I presume that Peter Breuninger is just a new Lamm owner why is trying to wrote his “reviews”. As a reader of my site has pointed out today - Peter is Stereophile and TAS writer - well this makes so much ...
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Actually I would like to stay at on the subject of this thread - the benefits of critiques and the benefits of positive perception of critiques. I less care about corporations as they have no personal consciousness but I rather target my attention to...
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OK, would you say the weak link would then be:1) Just the topology of Lamhorn (single driver with back-loaded horn appendix)2) Any single driver back-loaded loudspeaker in general3) Or any single driver loudspeaker in generalOr perhaps a better quest...
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I had two friends in NY City with Klangfilm Bionor who drove them with Lamm ML2.0. One of them had 405 footers and another had fool filed-coil version. I did not look into details and if I remember correctly the driver were in fabric cocoon but I do ...
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Well, I may be one of the dummies here, but there are several things that could be viewed as "wrong" if sound was the primary goal:1) 95dB speakers and SET amps2) SET amps instead of DSET3) components assembled without a sonic goal - rather only comm...
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Romy, harken back to post #117 in this thread to refresh your memory about the "acceptable" small tube sockets used in this amp. Maybe Lamm used good sockets in your own amps, but the ones he put in my amp are not good. After all, the 12AX7s use ...
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Anyone ever tried the "pinless" tubes that have long-ish wires in place of the usual pins?A Moscovite I ran across has Russian mil-spec 6AK5 "equivalents" that have pinched glass and the wires instead of pins. Oddly, Lamm lists the type numerically ...
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[quote user="Antonio J."] … looking like the Kemp's unit. But that's provided the input electricity is still under 5% of distortion. They also state that that performance is under linear load, so it might be possible that using chokes or trannies loa...
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Audio people frequently go astray in their thinking and actions and this creates a good breeding ground for all possible audio sale opportunists. I would like to explore one moment that has not a lot of public attention and to look at the moment slig...
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"with only disadvantage in sensitively department" That's quite a big disadvantage from where I look at it.The way you describe the speakers with all of your other amplifiers seems to match how I recall them sounding. I cannot imagine how...
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Romy,I find much of your comments interesting, funny, and surly. As a music lover, especially of large-scale orchestral and intimate vocal (from Scheherazade to Vienna Teng), I'm open to all views. My view is that nothing is perfect and e...
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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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Thanks again, Romy. I never would have guessed that the relay-like pulse comes from a dying output tube rather than a fault with the relay itself; but that does make it lots easier to deal with!As you know, meaningful info about this amp is har...
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Well, I never seen it happens but who know – that might be if some use “violence” on tubes. The sad part is that to replace these sockets is difficult. I have replaced in ML2 the 6C33C sockets in ML2 - it was easy but the 5651 are PC board-mounted an...
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…. what tube’s socket is arcing. If the tube juts started to ark then bending the tube legs, cleaning the sockets 9scabng the meta with no marks of the ark left) and treating it with conceive grease might help. Do not forget that most of the ...
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Paul, I do not remember I had problems with 6AK5 sockets, and frankly I feel that your preoccupation with small socks of ML2 is a bit strange. If you “keep getting noise from the 12AX7/sockets, and this noise gets resolved when you clean the connect...
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I just bought a pair of Lamm ML2`s. I live in Norway, so I have to convert the amps from 110v to 220v or 240v. The offical voltage in Norway is 230v, but it varies a lot. Does anybody know how to convert the amps?. The should be a wheel to select the...
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Coincident was not there, unfortunately. I, too heard good things about them but never had a chance to listen to them. Maybe I should try David Lewis - as much as I don't like going there, he has some good stuff once in a while.I liked the show. It w...
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Thanks again, Romy. The bias pots, mechanically, are just as you observe.I supposed that the extra current draw during burn-in was normal for the ML2s but I had not noticed it before, since I typically do not bother to check or t...
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Skushino, from what you say I presume you use two pair of ML2, right? Yes, what you say is correct but if I were you then I would not introduce an addition caps to signal path. In my view the best scenario for high path would be to minimize the coupl...
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I think it is both Product placement and stupidity. Robert Harley has a room with tall ceilings and a lot of open space on the sides that suck out LF very strongly.
http://www.theabsolutesound.com/articles/follow-up-the-magico-q7-louds...
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I tend to look at specs even though they might not tell much about sound. I saw that one of the DSP processors has an ambience type phase injection option for a pair of front ambience-type speakers, along with the rear ambient speakers. I am probably...
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[quote user="Romy the Cat"]...There is also no infrastructure among the park of ready to use speakers that would be accommodated to use with DSETs...
The Cat[/quote]Yes, this is what I was trying to get at: what someone talented like Lamm might do ...
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It is more or less in the same direction like any Product Placement ( some call it review) from that group who lives from sales. That means, it is always the same "direction":
Rule No 1: Compare the object with something similar which is much...
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Somewhere in 1997-88 I bought a hundred 6C33C. I believe during those years the where more expensive then now and I paid around $7-8 per tube. Over the years burning the 6C33C in pair of VK-60 (8 tubes), two pair of Lamm ML2 (ML2), ML2 with Melquiade...
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Morricab,
I do not know the “truth” and what I said are pure my speculations based upon what I hear and what I measure.
Yes, Lamm drivers at 310mA quite hard but do not forget that his objectives, besides everything, were to get out of his SET max ...
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I am interested that Romy has found some interest in DHT amplifiers.
Many, many amp builders have used many, many tubes over the years, including many IHTs, triode-wired pentodes, etc. Japanese builders have used big transmitting pentodes driven i...
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Rony,
After reading my post about the undersized core (for the given current) of Lundahl transformers you might be an impression that Lundahl are some kind of second choice. The undersized amorphous Lundahls forum is second chose for an ultimate ful...
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Actually the approach “this is working fine because SET amp has a correct harmonic reconstruction" I find is very wrong in audio. It is similar to what Thorsten written in his compilation about the loudspeakers problems: “I'm an Engineer in the end, ...
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[quote user="Resorob"]I realise that this is a very old post, but you might want to take a look over here=>> http://www.valvediy.com/simplexpg1.htmlThe article can be downloaded as PDF, the writer Ari Polisois developped a new kind of transform...
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