I really do look at all stability issues, and look at square-wave ringing and potential parasitic oscillation.
When testing I use the same output stage and PSU, then I can change input-stage (on a pin-header) and isolate any performance issues to that only.
When I started looking at CFA's I really wanted CFA to be the best, but IRL has show a different result. No doubt CFA's show the best results when you look a single tone distortions, but when a smaller higher frequency signal rides on a larger lower frequency signal you run into something problematic. I believe this is because CFA are not very pure, they mix voltage and current, so you also get voltage modulations where ideally it should only have been current modulations.
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what would go a long way to resolving some of the questions would be the folks with adamant opinions in the same room at the same time listening to the same gear playing the same music so a baseline is established.
until that happens, all this is merely "fun" speculation and commentary.
mlloyd1
until that happens, all this is merely "fun" speculation and commentary.
mlloyd1
That goes for lots of things, I think we tried that and it somehow never happens.
Objectifying the subjective is simply not possible. making science out of something that speaks emotion is as absurd as creating love potion. I think most of us are in this because of either love of music or due to the the technical fascination of the music equipment.
yeah, I can see that - the "fun" and commentary parts get in the way once the spirits flow.
or is that "spirit flows"
🙂
mlloyd1
or is that "spirit flows"
🙂
mlloyd1
i guess i don't see getting a baseline as being "objective"; it's just a reference to enable clear, meaningful conversation. how else could we communicate with each other?
anyway, i've exceeded my philosophical quota for the day.
back to listening to tunes ...
mlloyd1
anyway, i've exceeded my philosophical quota for the day.
back to listening to tunes ...
mlloyd1
There's a whole area of sensory science which does exactly that. "Hedonics." The latest Linear Audio has an article with a terrific set of hedonic tests of vinyl versus digital, and you might get some enlightenment from reading it and understanding the methodology.
No theres psykoacoustic science that tries to do. My hometown specialists are leading the way in cooperation with the local conservatory, they use CT scanners to map brain activity in association with music, recorded and live. They try to find a correlation between music and emotional impact and how music can release happiness to help cure depression. Here the quality of equipment plays a significant role.
Maybe over time something qualified will emerge.
ABX is pseudo science, like voting poles, they may give you a hint of direction.
Again products are a reflection of you and your choices. Nobody but you defines a direction and only you makes the important choices.
What we can do here is to discuss the mechanisms and try to learn from all the subjective impressions and expiece gathered here.
But that becomes rather difficult because any opinion is bashed in one statement that you didn't listen the scientific abx way so what you say is non valid.
Maybe over time something qualified will emerge.
ABX is pseudo science, like voting poles, they may give you a hint of direction.
Again products are a reflection of you and your choices. Nobody but you defines a direction and only you makes the important choices.
What we can do here is to discuss the mechanisms and try to learn from all the subjective impressions and expiece gathered here.
But that becomes rather difficult because any opinion is bashed in one statement that you didn't listen the scientific abx way so what you say is non valid.
MiiB;4440260 They try to find a correlation between music and emotional impact .[/QUOTE said:
Hugh, as far as emulating the SET sound in solid state goes, surely Nelson Pass has tried to approximate this with his single power mosfet gain stages and power amps ?
The SET sound may also be attempted by careful design using JFETS.
Plenty of H2, Hugh, and I am sure you and many of your followers will agree that leads to a pleasant listening experience. Tube-like, (if you like.)
cheers
jcdrisc
The SET sound may also be attempted by careful design using JFETS.
Plenty of H2, Hugh, and I am sure you and many of your followers will agree that leads to a pleasant listening experience. Tube-like, (if you like.)
cheers
jcdrisc
MiiB, would you care to elaborate on this "warm slam" you value so much ???
Would that be something like being slapped across the chops with a partially cooked haddock ?
The nearest I can get to understanding this sort of frustrating subjectivist jargon is to say that perhaps "slam" is feeling the air moving in front of a good subwoofer ?
Do you accept that idea as reasonable ?
Can anyone else contribute their definition ??
yours in confusion
jcdrisc
Would that be something like being slapped across the chops with a partially cooked haddock ?
The nearest I can get to understanding this sort of frustrating subjectivist jargon is to say that perhaps "slam" is feeling the air moving in front of a good subwoofer ?
Do you accept that idea as reasonable ?
Can anyone else contribute their definition ??
yours in confusion
jcdrisc
I believe that is the link they try to explore as a possibility of using music in a treatment program.
Not so sure music is acquired, maybe it's deeper than that, rhythm is shared and common, maybe. A part of reproduction. All cultures on any continent and no matter how remote share rhythm the foundation for music.
You ridicule Hedonics, but put forward bongo therapy as true science and then wonder why I don't take you seriously?
I simply object to the fact that every time somebody put forward their expience, then it's discarded because it was not acquired in a specific way.
Hedonics may constitute a mean to get a value on elements for the generalist but is like a pole just a trend. Maybe meaningful for those lacking sense of direction. I understand why boards of big companies resort to something like that. But who in this world will claim that Bose an B&O make the best sounding systems in the world. The thing is that it's processed data, like statistics you only get the results you ask for. If the data amount is large you can say more.
For me I listen and then try to find the mechanisms behind my observations. Not very scientific but very focussed and it takes me in the direction I want.
Hedonics may constitute a mean to get a value on elements for the generalist but is like a pole just a trend. Maybe meaningful for those lacking sense of direction. I understand why boards of big companies resort to something like that. But who in this world will claim that Bose an B&O make the best sounding systems in the world. The thing is that it's processed data, like statistics you only get the results you ask for. If the data amount is large you can say more.
For me I listen and then try to find the mechanisms behind my observations. Not very scientific but very focussed and it takes me in the direction I want.
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You yet again miss the point.
'I prefer' does not raise an eyebrow
'Is better' will get people locked and loaded.
I would suggest you need to work harder at the mechanism searching!
'I prefer' does not raise an eyebrow
'Is better' will get people locked and loaded.
I would suggest you need to work harder at the mechanism searching!
With considerable trepidation, and despite no explicit mention of "slam", here is a link to one of the notorious articles by Martin Colloms: Pace, Rhythm, & Dynamics | Stereophile.com
reading the first page of that does seem to imply 'I was doing this like an engineer and then realised I would get more work if I went all NAIM with my descriptions'.
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Hugh is an old-hand at this trick, his simple AKSA amplifier was finely tweaked to provide a SET-like sound profile despite being a lot more powerful than most SETs and whilst being Class AB. His current amplifiers are designed along the same lines of thinking as far as I know.