The question a first is not about milliohms on relatively stable load; the question is how that milliohms change when load impedance is changed thousand times abruptly. And second, my point was that in order to power the highest efficiency amp and get nice sound from it you need the highest inefficiency power supply.
If you think the Ms. Krall's recordings aren't mastered, well, you have a lot to learn! There is a very specific sound to her stuff, a sound that sells. That's done in the studio and in the mastering suite. She does not sound that way without a lot of work. They are highly manipulated.
BTW - what is "real music?"
AVE...
However I think that TheShaman meant any type of studio-mastered recording, which is good enough for normal people...
@Jack Caldwell...
I meant the psychological effects of subliminal stimuli, not neurological. The fact that subliminal messages are in best case scenarios only unconsciously acknowledged and have no lasting effect on conscious mind was proven by over 50 years of experiments performed in order to use this technique to make more effective advertisements...
I have a question: why all hearing aids incorporate class D amplifiers though fidelity of sound and quality of its reproduction is the most important thing?
Personally I believe that the parameters of class D amplifier are as good as the parameters of high quality class A and AB amplifiers (not counting efficiency and power dissipation). I also believe that going below 0.1-1% of any parameter associated with sound quality will have no audible effect - the voodoo magic happens in the unconscious mind of listener, which has stronger impact than even the most obnoxious subliminal stimulus...
Why you think that efficiency of power supply matters? In case of any amp the only important is to satisfy the voltage and current requirements of amplifier. Underpowered amps won't play good, and overpowering them is pointless. For years here we used EI and toroidal transformers that never delivered more then 130% of required power. Some designs were slighty underpowered because there were huge capacitor banks. And everyone was happy...
According to my personal dictionary of audiophile world "real music" is undefined quality, which makes audiophile happy. I asked some of them about their definitions and one told me that the live performance in perfect acoustic conditions is real music, and everything else is its close approximation. For other the audible and non-audible imperfections in live performance make it real. For me it doesn't matter as every form of playback is close approximation. It is hard to imagine you are listening to live performance, if you pushed the "play" button...
However I think that TheShaman meant any type of studio-mastered recording, which is good enough for normal people...
@Jack Caldwell...
I meant the psychological effects of subliminal stimuli, not neurological. The fact that subliminal messages are in best case scenarios only unconsciously acknowledged and have no lasting effect on conscious mind was proven by over 50 years of experiments performed in order to use this technique to make more effective advertisements...
I have a question: why all hearing aids incorporate class D amplifiers though fidelity of sound and quality of its reproduction is the most important thing?
Personally I believe that the parameters of class D amplifier are as good as the parameters of high quality class A and AB amplifiers (not counting efficiency and power dissipation). I also believe that going below 0.1-1% of any parameter associated with sound quality will have no audible effect - the voodoo magic happens in the unconscious mind of listener, which has stronger impact than even the most obnoxious subliminal stimulus...
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Umm, yes, where original = the recorded event, aka reproducing with fidelity the information that was pressed on the disc. Sadly, this has nothing to do with the live event because no mic (or any number of them) nor any of the existing media for that matter is capable of recording 100% of what we hear in a live performance, the multitude of stimuli the rest of our senses receive at the same time, the mood we were at and the effect of these combined.
I didn't say that. I just said they are produced specifically to sound good. Like that Patricia Barber stuff.. And then there are the "purist" stuff which, supposedly, have been unaltered...
Anyway, all of the above are what you usually hear in HiEnd shows (because they'll make any system sound half-decent with accented details like the artists lips or the fingers on the guitar string) and only a small percentage of these have any real value as music.
Any music that was produced because of it's content and not one that was produced on order to satisfy a niche market where medium or the system that they'll be played through is the protagonist and not the music itself.
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Hi,
In hearing aids absolute fidelity is quite low down the list of requirements, but light, easy to wear and long lasting on one battery/charge is very high up the list. So perfect for class D. All the low level problems don't matter, the wearer has no hearing there anymore anyway, or they would not need hearing aids.
Ciao T
In hearing aids absolute fidelity is quite low down the list of requirements, but light, easy to wear and long lasting on one battery/charge is very high up the list. So perfect for class D. All the low level problems don't matter, the wearer has no hearing there anymore anyway, or they would not need hearing aids.
Ciao T
AVE...
This answer satisfied my curiosity. However wasn't this achieved with solid state aids? I've seen somewhere disassembled one that wasn't much bigger than modern aids. which use digital signal processors to match frequency responses of ear...
Hi,
Well, an analog amp will do in reality maybe 65% efficiency, a switching amp that is truely optimised for efficiency 95%. As the Amp is main power drain, this translated into 1/3rd longer use...
Ciao T
Well, an analog amp will do in reality maybe 65% efficiency, a switching amp that is truely optimised for efficiency 95%. As the Amp is main power drain, this translated into 1/3rd longer use...
Ciao T
But how can this be verified i.e if 2 playback systems sound different, which has the most fidelity - what is the criteria for accessing this?
AVE...
If they sound different, then at least one of them is not high fidelity system. The basic criteria for them used to be frequency range of 20Hz-20kHz and all distortions and noise kept below audible levels of human ear. Both can be measured in laboratory and tested with blind tests and double blind tests. Audiophiles, and especially audiophile gurus despise any form of blind tests, ignore measurements and replace then with their "what sounds right" subjective opinions. The sad part is that their opinions, though not having any scientific or objective bases are treated as dogmatic truths...
AVE...
Numbers don't lie - people do...
I learned this truth by dealing with pseudo-science designs that were supposed to make power from nothingness, run for eternity and make everyone not dependent on energy and fuel distribution companies, save energy consumption by making it better, and achieve various other magical and mystical effects...
Numbers don't lie - people do...
I learned this truth by dealing with pseudo-science designs that were supposed to make power from nothingness, run for eternity and make everyone not dependent on energy and fuel distribution companies, save energy consumption by making it better, and achieve various other magical and mystical effects...
I meant not to be offensive to anyone here. If so, I apologize.
What I really meant was tech speaking, that class D amps are good for efficient applications, at the opposite of tubes where inefficiency is a fact. Nevertheles two amps, one class D and the other a tube one can be sound comparable.
And, as all we must agree, if there is people still believing in magic, macumba, and strange religions, an theirs is all the right to believe in whatever they like, there could be mystic loving people who loved class D amps who turned to be mystic loving people who, now, love something different. The right of changing idea could be the reason of why digital amp revolution is over. Like the Hippy revolution of 1968.
Le me believe there’s no black or white and gray areas. Why can't someone cease to like a class D amp to change his mind toward another class amp with almost the same result. If somebody is talking about a fall in the digital amp revolution there could be a reason at last.
Regards
Larry.
What I really meant was tech speaking, that class D amps are good for efficient applications, at the opposite of tubes where inefficiency is a fact. Nevertheles two amps, one class D and the other a tube one can be sound comparable.
And, as all we must agree, if there is people still believing in magic, macumba, and strange religions, an theirs is all the right to believe in whatever they like, there could be mystic loving people who loved class D amps who turned to be mystic loving people who, now, love something different. The right of changing idea could be the reason of why digital amp revolution is over. Like the Hippy revolution of 1968.
Le me believe there’s no black or white and gray areas. Why can't someone cease to like a class D amp to change his mind toward another class amp with almost the same result. If somebody is talking about a fall in the digital amp revolution there could be a reason at last.
Regards
Larry.
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So you were lied to about free energy machines? You didn't fall for that did you? So now you only trust numbers!
AVE...
Actually my hobby was and still is dealing with pseudo-science. I was never fooled by charlatans. I just enjoy damasking them...
Actually my hobby was and still is dealing with pseudo-science. I was never fooled by charlatans. I just enjoy damasking them...
Whattakind of idea... 😱
A class "M.E.G." amplifier which extracts energy from ZPE... no more power consumption for lissening music...😀
Oops. Sorry...
A class "M.E.G." amplifier which extracts energy from ZPE... no more power consumption for lissening music...😀
Oops. Sorry...
Yes, a bit of damask usually works - covers them up & gets them out of sight, anyway!
sofaspud,
(Admittedly, the related consciousness / subjective / objective reality historically has been a difficult philosophical issue).
It is desirable in order to enhance the conceptual purity of the discussion.
(Objective) measurements have no validity for the perceived quality, (subjective) opinions cannot be quantified.
(Admittedly, the related consciousness / subjective / objective reality historically has been a difficult philosophical issue).
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