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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="drdna"]
Well, I experienced the same exact phenomena with using different 2A3 tubes as you remember, which I do believe has to do with the mechanical harmonics in part.[/quote]
I do not remember that, it you wrote it then I mo...
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[quote user="drdna"]I wondered if Romy or anyone else has toyed with Sakuma's very interesting topological solutions. I have followed this for a number of years but my circuit building skills are so poor I figured I would likely blow something ...
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[quote user="drdna"]I beg to
differ. It may contribute to the unique sound of the PurePower. I still have my
old SA-3 amplifiers made by Nelson Pass. The massive capacitors take up 90% of
the inside of the amplifier, and it does have an impact on ...
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[quote user="drdna"]
So, I am of the opinion that most anyone can hear the differences. We just don't understand the physics of why it makes a difference. Just make sure you do it in a double blinded fashion, and be ready to accept that some...
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[quote
user="drdna"] BUT will the PP2000's and the PP3000+ still make the
interference even if not in the same system, even if just plugged in for a
completely separate stereo system (or toaster, etc.) in another circuit breaker?[/quote]
Yes, i...
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[quote user="drdna"]…Sorry for your disappointing experience. [/quote]
Why was it a disappointing experience? I was not. It might be disappointing for him – he did close the sale, but it was not disappointing for me.
I read his comments about his ...
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[quote user="drdna"]
I am saying:
1. All people listen differently.
2. The act of listening substantively affects the perceived sound.
3. There will be one ideal system for any individual listener but not one for all listeners.
4. The higher le...
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[quote user="drdna"] There is no mystery in how the machine works, really. A very crude analogy is how they used to put a dark blue filter on the camera to simulate night scenes in movies. It was cheaper and more practical to shoot ...
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[quote user="drdna"]I will hope to hear Vasyachkin make some comments on the problems he was encountering with the sonics that may be solved with this novel solution of waveguides.[/quote]
to be honest listening to stuff is not my thing. it's not...
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[quote user="drdna"]
Romy, are you not familiar with the early efforts of Harry Pearson? I lived through all of that of course. I hesitate to say it, but it is true. Most of what you are saying is exactly what HP said in his early writings, if you ...
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[quote user="Romy the Cat"]
Possible, with all my conversation about Mantis I do not remember I ever made any guess or assumption how it might sound. In horns, I feel I am qualified to make sometimes very bold assessments with very high prece...
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[quote user="drdna"] The vast majority of things that give us information about a performance of a musical piece are preserved or lost in the recording process, not in the reproduction by the audio system. [/quote]
I would very much argue this. I wo...
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[quote user="drdna"]
In any case I think it will be educational to see the effect on the sound. [/quote]
It will not be just “effect on the sound” but “affords on the driver”. I cut the lid of the shipping box in my trunk and it looked at the driv...
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[quote user="drdna"] It might also be instructive to have Joe visit Boston and listen to Romy's system, but I bet he would not go either. [/quote]
Probably, it would be instructive but I really do not want it to be as some kind of competition betwe...
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drdna wrote :"...What was more concerning is today some 60 Hz hum also re-emerged in the system... As everything is plugged into the PP2000, I am not sure how to deal with it..."Before opening up AC outlets and breaker boxes, here's a way of disconne...
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[quote user="Romy the Cat"][quote user="drdna"] You are correct, though I believe the subwoofer covers only below 35 hz. [/quote] So???[/quote]So, my thought was that below 35 hz, there are many ways of thinking about amplification. Some might say S...
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[quote user="drdna"]Since both sides use different amplifiers, I think there may be incomplete correlation between the two sides in terms of coincidence of frequency response. Small changes in frequency response that vary with frequency and ampli...
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[quote user="drdna"]I find the sound of my horn loudspeakers very satisfying, and by the way I have the EdgarHorn Titans, which may make you chuckle if you are a horn snob, but I think they do a very good job, one of the best commercially available h...
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[quote user="drdna"]Now fully five years after the original PP2000 was in my system, then subsequently stopped working and was sent back for repairs to the manufacturer. An unfortunate series of events involving the Chinese subcontractor resulted in ...
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[quote user="Romy the Cat"]
[quote user="drdna"] Exactly. Thus, it suggests a ground loop internal to the PP2000, doesn't it? [/quote]
In my view it is highly unlikely as a definition of loop itself implies two contacts to ground and PP2000 has on...
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[quote user="drdna"] but let's not forget that we should never equate equipment prices with sound quality. [/quote]Absolutely disagree. This believe is the most ridicules accomplished that audio propaganda implanted inept the brains of audio people. ...
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[quote user="drdna"] Well, I think it is just his style. He calls 'em as he sees them. Romy, you don't actually hate Michael Fremer do you, more just despise what he does, right? [/quote]
This is an interesting question. I think th...
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[quote user="drdna"]Does this mean our society is no longer interested in classical music?[/quote]
I do not think it says anything about society or apathy. The termination of live Friday broadcasts was not an objective natural event but a volu...
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[quote user="drdna"]The question in my mind Romy is: why? I will be interested to hear your comment on what your goal was to learn about your system in introducing these and what the results are. After the extent to which you have describ...
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[quote user="drdna"]I used this method in my car and my house, but the destruction of the sound with DSP let me to abandon all these efforts and to focus on simply reproducing the original Sound. [/quote]
Yep, the very same observations are he...
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[quote user="drdna"] I am kind of disappointed, since you typically advocate a very careful and systematic way of proceeding. What do you mean by extremely different positive?[/quote]Well, I it what it is. I am not DIY-Moron and I do not do und...
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[quote user="Joe Roberts"]What happens when drivers have different radiation patterns ….?[/quote]
Actually nothing happens. I pretty much discard any conversation about different radiation patterns for channels as if the Macondo Axioms are pur...
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[quote user="drdna"] Well, and I have a dozen of them sitting here next to my desk while I am building my Milq amp s-l-o-w-l-y so I guess I will discover my audio intelligence level sometime after the New Year.[/quote]
That is so cool that you...
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[quote user="drdna"] So what are the effects of good electricity of the PP2000? It may be a good idea to look at the frequency response and harmonic distortion of the system to see if filters in the Macondo speaker system may need to be adjusted now ...
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[quote user="drdna"] I built this amplifier more than ten years ago, before these other tube companies were in business. I know the Vaic tubes, which the EL tubes are related to. However, I have not tried either tube. Maybe it is a good idea (and I c...
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