oh, well maybe you could help 
my PC soundcard is fed w/ ±12V from the ATX PSU(I chose one w/ the lowest ripple available, it's a clearly audible improvement over the old one I had)..anyway, I was told that on my soundcard:
all the ppl I've talked told me that it doesn't sound like a good deal to get unregulated ±12.3V over regulated ±8.8V...especially from a SMPS.
Would you have a better advice for me by any chance please?
yes, there's stuff all around my head, not just stuck to my ears...it's awesome on headphones
now, maybe some funky dolby headphones stuff could do the same on IC's...lemme find out for you
my PC soundcard is fed w/ ±12V from the ATX PSU(I chose one w/ the lowest ripple available, it's a clearly audible improvement over the old one I had)..anyway, I was told that on my soundcard:
all the ppl I've talked told me that it doesn't sound like a good deal to get unregulated ±12.3V over regulated ±8.8V...especially from a SMPS.
Would you have a better advice for me by any chance please?
it's like the Earth, but a lot less distorted...I did A/B them, SS was slightly better on the Burson, but sound was utterly distorted on the Earth.It certainly seems like the Burson must sound a lot like the OPA-Earth... (you brought me back to my comparisons between LT1028/OPA211/AD797 etc. and those discrete opamps)
Kind of a hyper-realistic presentation, and one that's bass and midbass light...
yes, there's stuff all around my head, not just stuck to my ears...it's awesome on headphones
now, maybe some funky dolby headphones stuff could do the same on IC's...lemme find out for you
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They just do their thing, like anyone else... They're specialized in designing, we're specialized in listening......and Andrea the audio engineers at National are endowed in other "more important ways" than "synaesthesia"...and yes I had to look it up!
I surely agree with you in preferring the "metal cans". The LME49720HA is probably my favorite dual opamp, just ahead of the LME49723. I still think the LME49723 sounds more natural in some ways... but the LME49720HA surpasses it in other ways that I can't deny...and doesn't sound lightweight like the 49720NA, something that I can't stand.
BTW, I'm not surprised that a new (seen in the news section of a magazine) high-end DAC made in the UK uses the LT1028, such a 'niche' choice of opamp in the world of audio... they must know their thing. If I was on the market for such a expensive DAC, I would buy that one on this basis alone - they surely knew well what they were aiming at.
Andrea,
One other quick note (I missed your last response while crafting my last email) if you, and others in the group, take the time to try the LME49713HA you cannot just plug it into a VFB socket. It requires a set feedback resistor, 1.2 to 1.5k and can be difficult to use. However the linear impedance with frequency and the bigger output stage, 100ma, yields excellent audio results. Also I prefer inverting circuits for CFB parts. Just wanted to save you a little time if you decided to try the 713HA's. We had several "Tube" people at National and they liked the the "Sound" of the LME49713HA's the best of all the parts...me too! (I am not a "Tube Audiophile...at all!)
Also I believe that all good designs must meet certian techinal standards and be then be subjected to "controlled" (matched levels to 1/2 a dB) listening tests. This is why we had a sound room at National. I don't know of another Semiconductor Manu that has a dedicated sound room but maybe they do?
I also agree completly that the human body is an incredible design and there are things we don't understand fully how it processes audio information. We do know though that people do hear different things is different ways...but in order to make things repeatable we need to TRY and correlate measurements with what we perceive that we hear. For example just before we were all laid off we found that small differences in THD+N measurements, that
were linear with frequency, were always audible as an improvement. But the lines on the graph had to be parallel to each other. Bumps or slopes in the graph did not give the same results.
Such a fun hobby / profession Huh?
Mark / Audioman54
One other quick note (I missed your last response while crafting my last email) if you, and others in the group, take the time to try the LME49713HA you cannot just plug it into a VFB socket. It requires a set feedback resistor, 1.2 to 1.5k and can be difficult to use. However the linear impedance with frequency and the bigger output stage, 100ma, yields excellent audio results. Also I prefer inverting circuits for CFB parts. Just wanted to save you a little time if you decided to try the 713HA's. We had several "Tube" people at National and they liked the the "Sound" of the LME49713HA's the best of all the parts...me too! (I am not a "Tube Audiophile...at all!)
Also I believe that all good designs must meet certian techinal standards and be then be subjected to "controlled" (matched levels to 1/2 a dB) listening tests. This is why we had a sound room at National. I don't know of another Semiconductor Manu that has a dedicated sound room but maybe they do?
I also agree completly that the human body is an incredible design and there are things we don't understand fully how it processes audio information. We do know though that people do hear different things is different ways...but in order to make things repeatable we need to TRY and correlate measurements with what we perceive that we hear. For example just before we were all laid off we found that small differences in THD+N measurements, that
were linear with frequency, were always audible as an improvement. But the lines on the graph had to be parallel to each other. Bumps or slopes in the graph did not give the same results.
Such a fun hobby / profession Huh?
Mark / Audioman54
now what would 2*OPA2132P bass monsters feed the Burson w/...time to find out ^^
the 2132P has those uber-grainy mids
Thanks, but I was already aware! I simply avoid to mess with current-feedback opamps... too lazy to learn how they're to be used.
I'm sure the LME49713HA will be great, but, how many DIYers can take advantage of it?
I don't really have a clue... But something like the LT1028 meets the standards of today very well, since it appears to still be one of the lowest distortion / lowest noise opamps around.
Hmm, well... an awful lot of things!! I think that the scientific understanding of man's perceptive faculties is at a really childish stage.
While I believe that the intuitive understanding of the heavy limitation of science as opposed to the subjective experience of reality everyone has, is much more developed in men... probably, more in women...
Absolutely... there must be a final convergence between the "subjective" and the "objective". And within the intellectual and sensitive experience of every individual being.
The biggest mistake of western civilization, is having created all these opposed cathegories which exclude each other... "dualism" is how it's called. It's all false... Everything is found in its reverse: such as the subjective in the objective, and vice versa.
Surely it's fun, but a cognitive experience too...both the profession and the hobby, I believe. Just as happens in music: it's a cognitive voyage, no matter if you're the musician or the music lover.
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Andrea,
Having had many musicians in the sound room has shown me that people hear differently for different reasons. We had a piano teacher come in once to evaluate some modifications to a CD player many years ago. She listened to both the modified and unmodified units and after a few minutes she picked the unmodified unit as the better one! I was a bit disheartened but then asked her why. She said that on the unmodified unit she could not hear the "Students" mistakes and preferred that. After that my evaluation of listening test results changed dramatically!
When I am all done with the measurements on a new design I sit down in my sound /home theater room (i.e. modified garage) at home and listen to my favorite recordings. If I hear new things or find a level of enjoyment that is very pleasing and relaxing then I know the technical improvements were worthwhile. Sometimes of course things measure well but listening makes me edgy and I can't relax. Back to the bench for more work when that happens!
Thanks for our conservations/emails today! I really enjoyed it. I am off now to work on a new D/A proto unit with the AK4399 32 bit DAC.
Mark / Audioman54
Having had many musicians in the sound room has shown me that people hear differently for different reasons. We had a piano teacher come in once to evaluate some modifications to a CD player many years ago. She listened to both the modified and unmodified units and after a few minutes she picked the unmodified unit as the better one! I was a bit disheartened but then asked her why. She said that on the unmodified unit she could not hear the "Students" mistakes and preferred that. After that my evaluation of listening test results changed dramatically!
When I am all done with the measurements on a new design I sit down in my sound /home theater room (i.e. modified garage) at home and listen to my favorite recordings. If I hear new things or find a level of enjoyment that is very pleasing and relaxing then I know the technical improvements were worthwhile. Sometimes of course things measure well but listening makes me edgy and I can't relax. Back to the bench for more work when that happens!
Thanks for our conservations/emails today! I really enjoyed it. I am off now to work on a new D/A proto unit with the AK4399 32 bit DAC.
Mark / Audioman54
Its a Greek word and we say ''synesthesia''....and Andrea the audio engineers at National are endowed in other "more important ways" than "synaesthesia"...and yes I had to look it up!
I've been following this thread looking for opinions on a quality opamp but so far all I seem to have gathered is.........
To which I would never have guessed, your repetitive philosophical views and diction are coming across rather mundane. I may be wrong but I think we are posting on a Diy Audio site, not superlative speech today.
It seems judging by the recent posts I'm not the only person you are annoying with your demeanor.
A few questions if I may?:
Why defer from the title?
Why not allow folk to have their own entitled opinions?
And last but not least:
Do you own shares in the LT1028?
I'm a language & literature student
To which I would never have guessed, your repetitive philosophical views and diction are coming across rather mundane. I may be wrong but I think we are posting on a Diy Audio site, not superlative speech today.
It seems judging by the recent posts I'm not the only person you are annoying with your demeanor.
A few questions if I may?:
Why defer from the title?
Why not allow folk to have their own entitled opinions?
And last but not least:
Do you own shares in the LT1028?
It's a possibility... but in that case, the arguments they were meant to reply to were all the more mundane. And I'm not saying they were.
Now it's superlative?
Anyway, I can talk of audio as well, can't I? Looking for consensus is condemning yourself to conformity... I prefer to stay true to myself
Have I?
Haven't I?
You bet!
eg.
Looking for consensus is condemning yourself to conformity... I prefer to stay true to myself
Old Greek, you mean? It would tell that the idea of "all senses merged together into a unitary perception" has far-reaching roots indeed...
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I've just tried the LT1028ACN8, it's very nice as final buffer! too polite to my taste, not 3D'ish enough compared to the new burson...but very impressive nonetheless
I'll run a shoutout against the AD797BN within a few days.
When we find a chip we like, we can easily sound like fanboys...and LT makes awesome chips anyway, far better than National and BB IMVHO.
That must teach us how very vain our audiophile pride & ambitions can be...
I call the audiophiles "sub-humans"... and I consider myself more an audiophile than not
And (teach us) that the pleasure in music listening doesn't lie in a sort of intellectual analysis of what's being reproduced... which our conceptions of "sound quality" should probably take (more) inspiration from.
That is the right approach
I envy you that... really... not the work, but the result
Thanks, I enjoyed the conversation as well!
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I've just tried the LT1028ACN8, it's very nice as final buffer! too polite to my taste, not 3D'ish enough compared to the new burson...but very impressive nonetheless
I'll run a shoutout against the AD797BN within a few days.
When we find a chip we like, we can easily sound like fanboys...and LT makes awesome chips anyway, far better than National and BB IMVHO.
Yeah... it's right behind the corner...
Anyhow, I'm glad you like it. I know what you mean by calling it polite, but that's also part of why I love it.
That's precisely what every individual should've learnt to do, no? Provided that they have a self to stay true to
By 'every individual' I guess you mean myself?
I'm dumb, you're a genius. Feel better now?
'Troll' springs to mind. Do you know what I mean or is the word a little basic for your extensive vocabulary?
I didn't intend to make you feel dumb... I'm sorry if this was the case.
Anyway, isn't it just an ego problem? Like my ego is bigger than yours?
I'm trying to come across as one who has some significant arguments, rather than a strong ego. But perhaps the two things just go together, to an extent. I don't know for sure.
Or maybe they go totally opposite ways
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I didn't intend to make you feel dumb... I'm sorry if this was the case.
Anyway, isn't it just an ego problem? Like my ego is bigger than yours?
I'm trying to come across as one who has some significant arguments, rather than a strong ego. But perhaps the two things just go together, to an extent. I don't know for sure.
Don't worry, you didn't make me feel 'dumb'.
Everyone has their own take on everything, some agree, some disagree, that's just the way it goes.
Chow.