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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"] I am actually very surprised to hear you say this. I have stated before my thoughts on a preference in listening for additive or subtractive errors, based on how different people's brains process the information. [/quote]
Adrian...
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[quote user="drdna"]Well, You really need to figure out what you want out of your speakers. There are some questions I would ask myself if I were in your position:1. You can eliminate a lot of speakers based on their size, sinc...
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Well, I did not mean to express any specific attitude to Bottlehead people - the only experience I had to them was a few years ago visiting their meeting right here in Boston (I did not know what Bottlehead wa all about at that time). The meeting was...
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[quote user="drdna"]So perhaps audio can be a door to exploring spirituality?[/quote]
Of course it is but what it has to do with happiness? Exploring spirituality is about exploring the relationship between own reflections and own perception. ...
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[quote user="drdna"] However, the concept of the point source is absolutely valid. The audio reproduction should follow the transduction from the microphone, which is point source. We have to "play by the rules we make." [/quote] Well, let look into ...
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[quote user="drdna"]Still Robert Harley does end with a statement I can agree with: "Perhaps the low-power amplifier/high-sensitivity horn-loaded loudspeaker approach... is the true path towards creating the illusion of live music in our homes."[/quo...
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[quote user="drdna"] The subwoofer still needs a substantial power source. Right now it is being driven by a solid state amplifier. It would be interesting to see what impact the SET could have here if any.[/quote]
I see, I did not know that ...
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[quote user="drdna"]Is it true that the words "neutral" and "dynamic" and "inner detail" have importance for you? [/quote]Adrian, I do not think that it is right to shape the question like this. No one would deny those "neutral" and "dynamic" and "...
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[quote user="Romy the Cat"][quote user="drdna"] It has the Magnequest DS-025 OPT, connected to the 16 ohm tap. [/quote]
So, it is 2.5K primary and you drive 8R speaker with 16R tap. That makes the 2A3 loaded in your case with 1750R. I think it is ne...
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A few years ago somebody, I think it was “drdna” from California, told that he has a habit to listen the mechanical noise of the tube hold the tube at his ear by hitting the balloon of the tube. I did not exactly acknowledge it at that time as it was...
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[quote user="drdna"]Okay, today I hooked it up and have spend some time listening. The change in my system was very dramatic and positive. First of all, it seems suddenly like a good electricity day. The noise floor dropped out. The timbre of the mus...
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[quote user="drdna"] I hate to respond to this kind of comment, which is a simple logical failure, but, okay I will, since there is some news. Just to clear this up, simply because you have not had an issue, does not mean that an issue does not exist...
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The last year there was some chatter up about artificially created so called “digital drugs”. If you are not familiar with it get familiar here for instance:
http://www.usatoday.com/tech/columnist/kimkomando/2008-08-07-digital-drugs_N.ht...
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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"]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"]
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"]Again, the goal is to simply have observations....[/quote]
I just put a few lines of code together with the interface for the “Index of Components”. Let see where it goes. I did not test it well but it shell be stable. Feel free ...
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drdna,
I had written the key in a previous post but the wesite isn't mac friendly.
I have attached it as an image file.
Cheers,
Tuga...
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[quote user="drdna"]Remember I am not systematically anti-battery. I am anti-"pro-battery" which is to say I do not view it or anything else as a panacea. Each electrical device accomplishes a goal and degrades sound. The goal is to work within your ...
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[quote user="drdna"] So you do not recommend the stock tubes? Is it a specific change you recommend?[/quote]
Better tubes will certainly give you better sound, in many cases more sophisticated sound. I do not know what tubes EAR uses as stock tubes ...
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[quote user="drdna"]…AND since the exact frequencies affected by HF loss of the Finalizer and the frequencies covered by the tweeter adjustment are not likely to be exactly the same, then when the tweeter is adjusted to correct the HF loss frequencie...
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Thank you for the feedback guys!
- Bill and drdna below is the actual physical situation. The distance to the Decca is 110cm, to Phono 140cm (the noise is present even if I switch to a shorted MM input and the PP is on batteries...
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[quote
user="drdna"]I'm not at all suggesting the input coil topology be
changed, as this may actually have something to do with the "magic"
sound of the PurePower -- something like the special sound of Fender
single-coil pickups on a Stratocaste...
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[quote user="drdna"]I have never been able to do this. I still cannot do this. Is anyone except Romy able to do this? [/quote]
Well, this becomes to be a mystery. Currently the site is configured that nay poster can edit own post for 2 hours s...
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[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 only one. I do not think t...
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[quote user="drdna"]As some here may remember, I purchased a number of years ago, before the debacle and attempted coup at PurePower, a nice Pure Power 2000. It always suffered from a slight buzzing when plugged in, which I feel was due an internal g...
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[quote user="drdna"][quote user="Romy the Cat"]So, what I am talking about is ability for an amp to have some kind of inner-algorithm that dynamically and actively “color” or better to say “dye” signals, still maintaining general color-neutral tenden...
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[quote user="drdna"] It sounds as if you are are relating neutrality to music in a roughly analogous way that people use the term transparency in relation to sound. In my mind a system can be transparent without being neutral, however, as trans...
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[quote user="drdna"]While I think a resonating speaker can add its own musicality to a reproduction, it is clearly adding harmonic distortion, etc. It may be pleasant, but you run the risk of needing differently tuned speakers for each type of ...
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