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Old 19th September 2007, 08:24 AM   #1
Bonsai is offline Bonsai  Taiwan
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Default IC's vs Discretes

Has anybody seen the October issue of Stereophile? There's a letter in there from Charles Hansen to John Atkinson (editor) about the new National op-amps (sub 1ppm distortion claimed).

Charles has an intersting take on IC's - does anybody else share this view?
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Old 19th September 2007, 08:42 AM   #2
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I will get my October issue soon, I hope. I will read it.
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Old 19th September 2007, 08:47 AM   #3
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Please explain, what is the gist of the letter?
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Old 19th September 2007, 09:37 AM   #4
Bonsai is offline Bonsai  Taiwan
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Charles, can you shar e your views on this subject?

I think it will make for an interesting discussion.
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Old 19th September 2007, 09:58 AM   #5
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You might have to PM him in order to attract his attention.

I could imagine that he still prefers discrete designs. Being a skilled designer he might be able to do even better than the modern op-amps which are already quite close to the "wire with gain".
For the average DIYer modern op-amps might be the better and easier choice however.

Regards

Charles
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Old 19th September 2007, 10:49 AM   #6
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Charles Hansen Ayre or Charles Hansen AudioXP ?
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Old 19th September 2007, 10:53 AM   #7
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Quote:
Originally posted by phase_accurate
You might have to PM him in order to attract his attention.

I could imagine that he still prefers discrete designs. Being a skilled designer he might be able to do even better than the modern op-amps which are already quite close to the "wire with gain".
For the average DIYer modern op-amps might be the better and easier choice however.

Regards

Charles

"Quite close to wire with gain?"

Then why they all sound so different???
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Old 19th September 2007, 11:57 AM   #8
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Quote:
Charles Hansen Ayre or Charles Hansen AudioXP ?
I found only this one on this forum:

http://www.diyaudio.com/forums/membe...fo&userid=6888

Quote:
Then why they all sound so different???
Do they really sound SOOOOO different ?
And don't forget that wires do also all sound veeeeeeery different !

Regards

Charles
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Old 19th September 2007, 12:11 PM   #9
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Quote:
Originally posted by phase_accurate


Do they really sound SOOOOO different ?
And don't forget that wires do also all sound veeeeeeery different !

Regards

Charles
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Old 19th September 2007, 04:41 PM   #10
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IIRC, it is in response to an article on very low THD parts from National, maybe the LME49810? Or what it one of the new op amps? Can't remember. The argument being that low THD is not the be all of sonic performance. He also was against ICs verses fully discrete because he can choose the best discrete component while an IC designer has to use what ever the process allows. I have a paper copy in my office but being on the road I can't reference it. Maybe someone can post a link? I remember there were some points that I didn't agree with but that could be because they are not fully clarified in a short article.

-SL
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