Head Injury
Headphoneus Supremus
- Joined
- Sep 11, 2009
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Quote:
Because he says stuff like this:
"[size=small]The first course of research posits that much distortion in audio signals is actually noise, which may be too low to measure but is still audible."[/size]
This is in the context of a NE5532 graph which displays a high order harmonic at -135 dB. I'd love to see a blind test of that. leeperry is a wonderful example of confirmation bias. Whenever he quotes an engineer, it's best to look to another engineer for answers instead.
The article does go on to describe the input errors that can affect performance. All of which will create measurable artifacts and would appear in tests of different loads, like the ones Voldemort does.
I'm going to stick my nose in here, and probably where it doesn't belong, but...
Why not ask Dr. Kevin Gilmore, Electrical Engineer at Northwestern University 1-847-491-2962
http://www.head-fi.org/t/197035/who-is-kevin-gilmore the author of the above quoted prose?
...instead of going after Lee Perry. Lee has every right to argue IC as someone posting how ubiquitously wonderful is the OPA627 in XYZ amp.
For the record: I own a version of Dr. Gilmore's Dynalo and it is probably one of the "cleanest", "freshest", "purest" amps I own with lots of bottom end "SLAM", the "sweetest", "juiciest" mids and surgically "precise" highs
Because he says stuff like this:
"[size=small]The first course of research posits that much distortion in audio signals is actually noise, which may be too low to measure but is still audible."[/size]
This is in the context of a NE5532 graph which displays a high order harmonic at -135 dB. I'd love to see a blind test of that. leeperry is a wonderful example of confirmation bias. Whenever he quotes an engineer, it's best to look to another engineer for answers instead.
The article does go on to describe the input errors that can affect performance. All of which will create measurable artifacts and would appear in tests of different loads, like the ones Voldemort does.