Not according to 'my' circuit theory i.e. everyone else's circuit theory too. Circuit theory tells you how the amp meets its spec; the amp may still be inadequate if the spec is inadequate, and inadequate amps are likely to sound different from each other. In fact, 'sounding different' is a warning flag for 'inadequate'.kamis said:
You must do better than throwing out random false comments. Why not address the issue? Suggest how a trivial potential divider can affect the sound, or suggest how a sighted test can be immune to all the known human effects of expectation bias, placebo effects, herd behaviour etc.
Not intrinsicaly, valves have built in NFB and this trade their gain for more linearity, also supply voltages are higher, hence this is less difficult to have a linear segment of say 10V within a 200V characteristic than with a 30V such max amplitude.
Now put the transistors in the same condition/characteristiscs and not sure that valves will keep being that linear comparatively.
Certainly but they could compare only if using old SS designs, otherwise linearity wise there s a gap of several order of magnitude, not that it s that audible but on the measurements it is here.
There is no amp with "same specs"(maybee approximative) with different topologies.
This is source for diy fun.
This is source for diy fun.
Here is a pretty extensive list, just in case anybody wants to get down to the particulars: https://en.wikipedia.org/wiki/List_of_cognitive_biases
The thing about the biases is that it's fairly easy to seem them operating at times in other people, but much more difficult, sometimes virtually impossible, to see them in ourselves.
"It's sometimes seems like everybody is crazy out there, except me." "And I know I don't have those crazy biases, because I would know if I did. And anyway, I am way more rational than most people."
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FWIW --- from PHD EE Stanford. IBM and HP resercher in linear devices and limiting factors etal --->
he said to me the most linear device was the triode tube. But tubes are too noisy for many uses.
He used FET for his audio amps.
THx-RNMarsh
he said to me the most linear device was the triode tube. But tubes are too noisy for many uses.
He used FET for his audio amps.
THx-RNMarsh
If two amps sound different but measure the same, then you are measuring the wrong things.
But this only applies to hearing not seeing.
But this only applies to hearing not seeing.
Unless we develop a completely new
system of measurement that depends
entirely on aural sensory input .........
system of measurement that depends
entirely on aural sensory input .........
It is possible, and introduced, for some medical needs, but, I can't imagine purist audiophile with platinum electrode threw the nerves.🙂
Also, there is no "experienced listeners"..this experience is often useless..a lot of variables and this sensation does not last long..
Maybe "trained listeners" is a little better term.
Also, there is no "experienced listeners"..this experience is often useless..a lot of variables and this sensation does not last long..
Maybe "trained listeners" is a little better term.
I agree this does cause confusion, mV's come out of cartridges no matter what you make the pre-amp out of. Triodes have volts of linear transfer function, stating the obvious serves no immediate purpose.
Guys (and of course it's always guys) that do hot-bluing of firearms like to work next to a swimming pool. An emergency measure for _them_, not the steel.
Much thanks, as always,
Chris
That's my father's jacket patch as my avatar. A really cool one. I'm sorry if your father went before his time, my father passed at 81 we all have to deal with this, there is no other possibility.
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