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Old 14th October 2005, 12:20 AM   #11
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I've got a NIB Philbrick Opamp sitting here...

oh boy!

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Old 14th October 2005, 12:37 AM   #12
SY is offline SY  United States
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Quote:
Originally posted by Devius
I have a doubt...

I've read the article on headwize regarding tube opamps, and I recall reading somewhere (maybe in this forum) that the usage of negative feedback in tube designs reduced the gap to solid-state designs in terms of sound. So, if I were to use one of those tube opamp designs configured for a gain of 10dB, or something like that, as a line stage would I lose the benefits of using tubes in the first place?
In the sense that you'll have lower distortion and source impedance, yes, it will sound closer to good solid state.
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Old 14th October 2005, 01:25 AM   #13
Sheldon is offline Sheldon  United States
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Devious opens:

"I've read the article on headwize regarding tube opamps, and I recall reading somewhere (maybe in this forum) that the usage of negative feedback in tube designs reduced the gap to solid-state designs in terms of sound. So, if I were to use one of those tube opamp designs configured for a gain of 10dB, or something like that, as a line stage would I lose the benefits of using tubes in the first place?"


SY counters:

"In the sense that you'll have lower distortion and source impedance, yes, it will sound closer to good solid state."



audio aikido?

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Old 14th October 2005, 02:01 AM   #14
SY is offline SY  United States
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OK, how about this? "In the sense that you'll have lower distortion and source impedance, it will sound closer to my cathode follower preamp."
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Old 14th October 2005, 04:25 AM   #15
Sheldon is offline Sheldon  United States
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Sure, as long as you remember that I have no clue on the merits. I just thought i detected some clever irony. My lame attempt acknowledge the effort.

Sheldon
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Old 14th October 2005, 04:23 PM   #16
Devius is offline Devius  Portugal
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SY:
Quote:
"In the sense that you'll have lower distortion and source impedance, it will sound closer to my cathode follower preamp."
So I guess you're saying it should give good results. I was interested in those tube opamp designs since they allow lower gains to be set more easily without changing tubes.
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Old 14th October 2005, 05:17 PM   #17
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Well, the nice thing is that all the tricks for compensating them for low gains are well-known. This wouldn't be my first choice for a from-scratch design, but I wouldn't argue with someone who decided to go that route.
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