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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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The AI is generally a bogus term, purely marketing term. AI is a term from the same family as the term “synergy”. I do not like AI and I usually use “behavioral patterns”. The behavioral patterns are specific and defined; they are not a generic BS th...
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Yes, the GM70 is very much unknown to most of us, especially in its "pushed"/HV version, and it is not likely to be properly explored by the average DIYer, either. Lamm did choose to use some of the driving ideas from his proven SET amp, but it ...
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Thanks for the rejoinder, including the corrections and tips, Romy.I well remember Lamm saying that we should junk our ML2s now because the parts are "worn out". While that does not cause me to think he does not know what he is doing it natural...
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[quote user="Paul S"] Does anyone know the voltage the big couping caps actually see? Yes, I should measure it, but I would rather avoid the drill of opening the amps, propping them up somehow and measuring if someone already knows the answer. Of co...
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Romy, at some point you did mention lowering current and shortly thereafter, if not in the same post, you added something to the effect of raising voltage. You even mentioned values you have tried, and I printed it out. But since I am usu...
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I am serious, Paul. Reading your tail of straggling with ML2’s tubes and tubes’ sockets I suspect that something is very fishy doing on with you. There is absolutely NOTHING might be with ML2 tubes sockets. You reported that the second stage of ML2 h...
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[quote user="Paul S"]HE, you've gotten a long run so far without anyone asking if you've read the site. Have you? There are long threads on the Lamms and the Lowthers that might offer you some food for thought. One thing I would recommend is playi...
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As you can imagine, the ML2s simply surprised me. I thought only of optimizing my speakers, what might drive them to their best, to see what they could do with fewer amp-induced limitations. And the ML2s have done much of what I want...
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Stitch wrote :"...some help from a non-republican :-) 1. the fuses you need 2- or 4 see below- and 2 spare:2A-250V /(313) slow-blow 2. Internally there are another 2 fuses:1,25A fast-act 3. Remove the bottom plate and check/replace those fuses fi...
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Anthony, I visited you thread and glance the progress you
are going with Milq DSET. I do not exactly how you feel, I went over it myself.
Let me to tell you how I dealt with what your experience. I am not sure that my
dealing with the problem is a...
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Gordan, I think you are missing the accent of what I meant to say. The Class A or not is not important for compression drivers and the S3 in particularly. I mean it is important and it much be ONLY class A but I do not see any SS amps switching in cl...
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If I were more scientific I suppose I would do a better job with controlling other factors involved, but in this case the tubes are cheap, so I just swapped them out. Sound had gotten "disorganized" and bass was weaker, both in a way ...
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[quote user="Paul S"]Yes, Bud, I agree that the most common problem for the full-tilt regenerators is that they begin to exhibit various problems in direct proportion to current demands. And this seems to be true even when they are used "below capac...
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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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[quote user="jessie.dazzle"] "Short the ML2’s inputs and the hiss should be gone"
I assume it is not a mistake, and that you mean short the unused input on each POWER AMP (as opposed to the PREAMP).
(I am currently using the XLR connections becau...
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[quote user="Paul S"] The 6N6Ps I bought are nothing "special" as far as I know, but they are all tested and to spec, according to the seller, so I will also replace my current 6N6Ps when the new (NOS) batch arrives, and I will note any changes in so...
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[quote user="Paul S"]You have said that there are no "good" 6N6Ps; but are some physically constructed better than others?[/quote]
Nope it was not what I said. I said the all 6N6P are equal, at least among those that I have seen and there are no rea...
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You would not have ‘limitations imposed by of a pair of SET amps such as the ML2s”. ML2 would do fine, juts make sure that it would be older ML2 before 2001-2002 production. You try the Melqs then, the parts are not a problem at all. Everything is ve...
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I never knew that Quicksilver does 6C33C, they never did when I was still monitoring what companies do. Their Triode Amp was, if I remember correctly, a base PP unit with a pair triode strapped 6L6/KT-88 tubes, where people were trying to put-in many...
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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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I believe that the Arum Cantus is typical of most ribbons in mirroring one of the principal failings of MC cartridges, a rising top end (over 20k), although I have not actually heard this - at all - with my own small Arum Cantus, and I just go n...
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Regarding L1 and L2 outputs and bi-amping:
Romy wrote:"...The unfortunate part is that if you still intend to run a dedicated cable to your let say LF section and if you use Lamm preamp then you can’t... his preamps (L1 and L2, I do not know h...
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My experience is limited, but I tried it a few times (300B, 845, OTL ...) with 8 ohm Speakers, 92dB and a crossover, which is simple and never got a result which was close to a high sensitive speaker (98dB ...), no breathing, no air, Headroom was lim...
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[quote user="Romy the Cat"]Now, how does it sound and what you drive with
it?[/quote]I own or have owned a number of amplifiers with valves before this, Pathos Twin Towers, Audion, Audio Note, Jadis etc. One of my friends who has the same Avantgarde...
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Paul, I think you missed the entire rational of my post. It is OK, people hear what they want to hear. Anyhow juts one correction I would like to make. I did run the ML2 with generator and scope at full power. I had 21W at 19-20Hz. It was not even wa...
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[quote user="Paul S"]A year (and a pair of V2s) goes by like nothing.I just changed V2 tubes again, and this time I dialed the current way down before I fired up the amps, per instructions.After a few minutes, I checked the amps with a (Fluke 189) DM...
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I find that all SET amps slightly electrify the sound of acoustic instruments. For example, an acoustic guitar will sound kind of like an electric guitar that is being played through a clean sounding guitar tube amp. Also very common...
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Klaus, this thread is for Jessie's horns. My own speakers, if that's what you're after, are mentioned in my Lamm ML2 and K&K phonostage threads.This post will self-destruct in 24 hours.Best regards,Paul S...
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[quote user="Paul S"]To be clear, I do NOT recommend anyone else leaving any 6C33C in 50+ Watt boost position this long….[/quote] To be clear, I have ML2 with 6C33C in 50+ Watt and the amps were running some for days without shutting down – not probl...
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I meant to continue, to say that I think I understand your contrasting amplification with sound/qualities of various channels.It seems to me that this channel-per-driver technique could give you the means to tune each channel very finely.I can a...
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