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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Yes, CV, I thought about it myself and I fine that this might be VERY interesting to play with. Unfortunately, or fortunately, I am months away from the position when I will be able to do it. The subject is devilishly interesting however. I think it ...
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Something that has long puzzled me is that circuit designers seem ever determined to wring the last ounce of gain from every tube in a given circuit, or they will "starve" them, and the circuit in turn is designed as if it were simply a mathematical ...
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Allo RomyOk, I managed to get my measurement setup running. Behringer ECM8000/PC soundcard kind of thing.I measured the following tweeters:Focal TLRTAD PT-R9Aurum Cantus G1Fane 5022I don't have an absolute level calibrator and I need to take time to ...
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[quote user="Paul S"]Amir, I agree with you wholeheartedly, on a philosophical level, and this in turn underpins my overview of life, art, etc.But, in practical terms, the fractioning off of any "event" is certain, once we try to "reconstruct" that e...
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I agree with your observations, and my own misgivings swirl around exactly the points you raise. In addition, I have tried battery phono stage and all it had to offer was quieter "background", everything else was worse, despite the wild and exo...
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One thing I have noticed is that most of the effort for many years has gone to "marketing", and "they" have gotten better at it with the passage of time, at least broadly speaking. At that same time the size of "The Audience" has grown it has also be...
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Hello:I would like to ask this forum for advise.I picked up a very simple and cheap RTA and decided to use it to listen to my speakers. It is 1/3 octave RTA, so I know Romy will say it is useless. It may not be very useful, but I start with nothing s...
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Romy wrote:"...I would like to have a micro heat sink on the pins to let them to be cool down..."Had I thought of it before installing the sockets, it would be fairly simple to do, however, these pin receptacles already have more mass than those of t...
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Many of the expensive power cleaners and regenerators claim that they do not limit current. None the less, many of these devices do seem to go into a swoon as current demands increase. We all remember the days when these devices were widely con...
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Sorry, I meant turn on the heater in position 3 in the start up
sequence and turn of the heater after reached position 3 in the turn
off sequence!...
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Hi,Have peope heard any of the new generation hybrid amps out there? I have often such miserable power to my home that about half the time it was useless to listen to my SET tube system. I always had a back-up solid-state amp to use when I could...
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I had in my basement Marchand X26 crossover that I use over 10 years back. Since my B-2 power amp with passive filter is being fixed I setup the stock fixed B-2 with external Marchand active crossover. I spent some time to modify the Marchand X26 bi...
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Yes, I do think that the caps in here are the key but there is a twist in it. The “formatting “or burning- in of capacious is a polarization of dialectic, with time the dialectic got charged and “sounds” better. Also the dialectic is mechanically str...
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Vitavox S2 does OK up to 12.5K ("strong, clean and in character") on it’s center but I never use this driver pointed directly to me but rather at good 20 degree off. (I hardly can tolerate any compression driver point directly to me). At my angle the...
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The best midrange comes from compression drivers, it has that minuteness, transparency and dynamics that no other topology can offer; the main problem with them is that they only cover a very specific mid frequency ran...
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I no doubt fall into the category of the 70%. My playback has not been as satisfying as I would like. Many of us do not know where to turn when we hit a brick wall with extracting the best results. The default reaction is to look for a piece of equ...
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[quote user="anthony"]Can you remember what caps
you used in the HF filter? They are certainly not standard values and I
do have a memory of you trialling air caps. [/quote]
I presume you ask about the F amplifier channel. I use air
caps 530pF...
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I was kind of frustrated with some strange high frequency roll off at my HF and Injection channels. It should not happen. The 9H OPT LL1627 in Injection channels should be good up to 23kHz according to my former tests with a full range Milq and the T...
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I would like to pass some observations about my MiniMe progress. At this point it is obvious that the MiniMe project will be a success, even despite the pain of the ass with multi-amping and some other setbacks. The MiniMe will turn out to be a good ...
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The more I conceptualize my view about tweeters the more I like sound of my playback without it. The last night there was a San Francisco broadcast with estimable Tilson Thomas on podium and I was shocked with stunning SFO’s tone. As many times I hea...
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Murat, that's a lot to ask from one driver. I thought that any time the "un-aided" driver craps out or acts weird, it's time to think about a crossover, and/or some sort of "assistance" for that driver. The great thing about horns is, they can passiv...
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[quote user="Paul S"] The "calm HF" effect is something I have long sought but seldom experienced from repro, and I have blamed the amps as much as the ribbons. Mere HF extension is not enough. Hard to say whether the amp or the rib...
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Ok, I have been experimenting with placement : Long wall versus short wall. Though the frames have wheels and roll very easily, my room is cursed with an elevated platform smack in the middle of everything (about 14 inches higher than the main floor)...
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[quote user="Lx_"] Well, this is consistent with the behavior I have. I can hear electrical devices behind the PP, especially those of the switching PS type: computer screen, laptop charger, DSL box, printer, SAT decoder... Good luck finding electron...
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[quote user="Romy the Cat"]I did not know that Lynn Olson and Earl Geddes involved in Levinson’s operation. With all disagreement with those individuals I thought that they are smarter than to deal with Mark Levinson. I hope they did not give him an...
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[quote user="CO"]Why such a wide angle? To keep the highs evenly spread and match to the angles of other chanels ofcourse but this will call for much more attention to room setup/treatment.Wouldnt this also lose some of the horn magic by letting the ...
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As I told, I’m generally not a fan of the Shostakovich’s orchestral music. There is in Shostakovich’s “large music” a constant sense of vulgarity, peasant intellectualism, humiliation and a sense of blown-up meaningless artificial musicality that ver...
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[quote user="Andy Simpson"]Having made my last comment based on what I 'heard' via my laptop speakers, I took the clip to the workshop monitors last night to have a further listen - not to examine the weird processing, but to come to a refreshed idea...
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[quote user="Romy the Cat"]Andy,
Yes, it is what I was thinking: they had many microphones and before the blast they turn some of them on to highlight some sections or instrument but the microphones were too hot and when the blast went off it was ...
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Romy,
Air core is ok, but. 1. Self inductance in an unmitigated field clumps. You can easily see this by unwinding a hockey puck style air core inductor and measuring the inductance with each turn removed. Never will you have the smooth loss of indu...
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