atmasphere

Responses from atmasphere

Amp advice for Sound Lab M-2's
Gammastrep, your speakers are fundamentally different from box speakers as you know. The impedance curve is the result of 2 factors, neither of which has anything to do with resonance.The result is that the 'conventional wisdom' about using a tran... 
Tube amplifier bad caps
Man, this one sure sounds like a bad power switch to me! It **does not** sound like bad filter caps! It *could* be a bad tube, but the flicker really suggests that the contacts on the power switch are arcing and permanently damaged. I would fire t... 
which amp is the most transparent?
Orpheus10, FWIW, tube amplifier designs have evolved a lot since the 1960s, although the CJ amps (for the most part) tend to have a lot of the textbook-style circuits from that era.One area that tube amps have really improved in is the area of tra... 
How does OTL amp get its power?
Rafael, no I do not agree with all his comments, although at at an earlier time some were true.For example, the comment1. The transconductance characteristics of vacuum tubes operated in an OTL push-pull fashion is both inherently non-conjugate an... 
otl vs push/pull
FWIW Israel did a lot of the formative work on his speaker line with a set of M-60s. We have a set of his Total Victories which the M-60s drive with ease.But to the point of OTL vs P-P, for the most part, OTLs **are** push-pull. The elimination of... 
Help choosing coupling caps
I stand corrected! I have to assume that the paper and oil parts that I saw in their catalog a while back are no longer made.I assumed from the size of the parts (they are used in the crossover of my speakers) that paper and oil was the technology... 
How does OTL amp get its power?
You could also wait until I find this thread :)I'm not sure what you mean by 'OTL amp get its power'... of course the power comes from the wall :) seriously though an OTL amplifier is able to make its power in a way that is not unlike a transistor... 
Ortofon Per Windfeld Load Impedance?
Jloveys, that might be true on a track. But trucks are intended for use on the road, something that Formula cars suck at- their engines are not tractable since they are intended for power at high rpm. Additionally, many trucks will handle and ride... 
Help choosing coupling caps
Musicfile, FWIW, there is no such thing as 'too much detail'. Also FWIW a lot of people associate brightness with detail, the two have nothing to do with each other.IOW you can have an extremely detailed system that is at the same time very relaxe... 
Thoughts on cartridge loading with a SUT.
Here is more information regarding Dave's spot-on info on the Jensen transformer website.http://www.jensen-transformers.com/mc.html 
Ortofon Per Windfeld Load Impedance?
Jloveys, when you can measure a thing in audio, and also hear the same thing, then you have a powerful correlation that cannot be denied. Critical damping of any inductive device, whether it is a coupling/setup transformer, phono cartridge or tape... 
Triode or Ultralinear
Learsfool, you might also include push-pull triode amps in your quest; not all that is triode is SET. 
Help choosing coupling caps
Musicfile, IME **all** paper and oil capacitors can exhibit an electrical leakage over time that can wreak havoc in your amplifier if used in the output section. This is because the electrical leakage will mess with the bias voltage on the grids o... 
"Breathing" of the air
Mrtennis, its true that you don't hear air, its simply the medium. But- the audiophile term 'air' means something different from what you are getting at in your comment. When audiophiles use this term, it implies a quality that the system is doing... 
Ortofon Per Windfeld Load Impedance?
Larry, ya know, that's something I've often wondered myself- not only how manufacturers arrive at their loading specs but also why more of them don't do anything at all. This is a technique that does not require a test LP, or even a turntable, and...