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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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An Audio Amplifier Design Philosophy
By David Berning ( Courtesy Meta-Gizmo.com )
I became interested in audio at a very young age because I liked music, but was too uncoordinated to be able to p...
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[quote user="AnonymousUser"] Sorry for the delay but my computer is down! I would like you to tell me squarely why your amp sounds to your ears better than the lamms tenors and the likes! what is if you prefer the impact of yur driver stage compared ...
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[quote user="Romy the Cat"]
cv wrote:
I wonder if it is the reactive components (blocking caps etc) that are to blame here, seeing as much of the problem is in the lower bass.Chris, what you said made me to think.
Loo...
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What I find interesting though, Romy, is that many of the SET measurements show gross distortion even when putting out very low power, which suggests that they are saturated from the high static DC current running through them as they must for a Clas...
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[quote user="Gregm"] Just a thought: sound reproduction, which includes main & harmonics, is what... sound reproduction is all about. The idea of performing reproduction in a consistent or with "structural integrity" manner is welcome -- bu...
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Hello Guy,Please excuse the rapid fire response, bit short of time today.1)Your comments about the Io cart are most interesting; clearly it ain't about saturation. Here's another idea: if the domains in the magnetic material limit resolution (leading...
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Merlin, early in the thread you seemed to be enjoying your position as the only person who knew what the hell you were talking about, and not much has changed since. Are you trying to share what you know or hold fast to some pre-conce...
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I was traveling yesterday and away from the computer until this evening. I'm glad to see my post as the source of controversy and even cause for a public flagellation from Romy. I don't know whether to laugh or to cry. Actually, I d...
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Was talking with various audio people about the 6C33C I was amazed that people are so clueless about this tube. The people are so filled with some foolish prejudges and faulty notions about 6C33C that I deseeded to put together a brief “6C33C user ma...
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I had a chance to listen to/for the Einstein components at THE Show, but there seemed to be no reason to pay attention to them, since they neither disappeared nor did they transform the sound in any remarkable way. My overall impression was that the...
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…Is when they call me idiot then they attract my attention. Wojciech
Pacula, the 6Moon’s reviewer extraordinary published the following:
So, when I read a text such as the one below, I just give
up, because it either demonstrates a complete lack...
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[quote user="morricab"]I have a phono stage from the Korean company Silvaweld that uses the 5651 tube in the power supply as a voltage reference. It also is using a Russian 6C19Pi tube along with EF86 pentode as the high voltage regulator. ...
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[quote user="drdna"]Berning is a genius to be sure. Here he fixed his sights on the "evil" output transformer. Every part of the circuit alters the sound somehow, of course, and the goal is to find the least damaging topology. The q...
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Wow! I did not realized that almost 4 months have passed since I wrote last.
Quite a few things have happened the last 4 months that I have played with the 6C33Camp/preamp combo. I have tried at least 3 different vendors on the Ulyanovsk type, the ...
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[quote user="KOTriode"] On dynamic, the 6C33C tube showed its ability to go deep in the bass on Ray Brown trio recording of Soular Energy which is excellent for a 15W SE , the 845 amp can do better, but not by much, but probably because of its 25W ou...
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The references to inertia and lightness are not to do with how a DHT works electrically but to do with how sounds reproduced by them 'can' be ie without smearing or overhang. Its a characteristic I hear in live unamplified music and one that is endea...
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You are not as cryptic/abusive as you believe you are. I personally view your comments in context of your other commons at this site and understand that it is your style: do not express yourself but mysteriously bark from the side road. From this per...
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[quote user="manisandher"] Do you think 150Hz is too low with a 7W SET?
In all honesty, I think I was heavily influenced by the Zu Druid 'hype' myself. I had bought the Berning (without really thinking too much, really - it seemed like a good ...
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I pack up the new amp today and plug it in with my right Macondo channel. The electricity was not bad I was VERY surprised with the fact that the new amp sounded MUCH more advanced then I anticipated from a chance of MF channels power supplies. The l...
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It is commonly known about the relation between the ultra high frequencies and lowest frequencies. The extended reproduction of highest frequencies ”improves” the lowest octaves and makes perception more susceptible to bass. The phenomenon is well kn...
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[quote user="cv"] …..and I am not confident about the sonics….[/quote]
What might be very interesting also is to learn what DC coupling in power amps would do generally in term of Sound.
The first time I thought about it was a few years back when ...
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With regards to the links, as it happens, I totally agree that 15in Tannoy Reds struggle to handle complex music. The crossover is too simplistic and the cones too hard to control with a low power amp. Reds can be lovely in a simple vintage system bu...
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Over the course of the past year I was very slowly experimenting to the sound of my headphone amp. I know much more about it sound then I knew last year and I learned a lot more how to get “different” sound from it. The more amps ages and the more I ...
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[quote user="drdna"]But how can you make the Melquiades as a DHT amplifier? I do not see it. [/quote]
To make Melquiades as DHT is very simple juts use DHT output tube. However, if DHT idea does make sense then I think the diver shell be DHT as well...
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I can’t stress now much I am fallen in love with my new PP2000. I was playing it today all day and can’t not see any single thing that I would bitch. I perhaps is missing too much the sound of proper electricity but my feeling is that the new uni...
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Hi,[quote user="morricab"]Hmmm....I guess I can't really see that unless you are enjoying a particular coloration you are getting from the TVC.[/quote] Nope. On this you are wrong. Based on direct bypass tests the TVC's I USE (that is the specif...
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[quote user="morricab"] You are also right that to get everything you want from an output transformer requires a VERY expensive construction and top materials. However; even an expensive transformer is no guarantee of success. [/quote]
Sorry t...
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It is a very strange feeling, but I really feel how this entire idea should sound. I mean the 500W SET of the REAL SET driving a 12-14 cubic feet of sealed enclosure loaded with North Leviathan Driver.
In past when I played with SETs driving Aura 1...
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I am kind of semi-evaluating a power amplifier now and think about the following: there is a correct relation between harmonic content of amplifier and it’s dynamic aptitude.
I have heard many amplifiers that run across the dynamic range with a tre...
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There are many threads on my site where I covered the subjects of Tweeter for my Macondo and particularly the moment of integration the tweeters with Vitavox S2 compression driver. Since a few months ago I altered my idea to use the EV T-350 tweeter ...
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