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In Reply to: RE: It's all about the design and build. To isolate one particular component requires a perfect platform...doesn't posted by xaudiomanx on February 17, 2017 at 23:40:46
Exactly Paul
A lot of times I have put in particular coupling cap or used a particular cable and what happens is,we get fooled by the sonic change in a particular area of the spectrum.Our subconscious responds to it as a massive change when it's not and you notice it after periods of listening to familiar music many times.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Follow Ups:
People say they hear things when a change is made. But do they really or do they just want to believe it?
The best way to settle that is by double-blind testing. And be always suspicious of those who claim DB testing is not trustworthy--they usually have a vested interest in claiming that!
Chris
The problem is that snap judgements are just as problematic as unblinded testimony. To do it right, you'd need for the tester to be blinded for several listening sessions lasting several hours and listening to a variety of musical genres, using capacitor A (or whatever component A), for example. And then to go through the same process, blinded, using capacitor B. And then ideally back to capacitor A. After THAT exhaustive process, I might believe my own ears (but not necessarily someone elses). We think we know and can remember what something sounded like after 5-10 minutes, but we are delusional.
Agreed. External validity matters.
91.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
Why not try training the ears like the expert wine tasters who can get down to village level in the origin? I am quite willing to wager heavily that the learning process is not blind.
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
I don't know how true this is but a good friend and well known tech in my area said to leave the UF as stock or close to it as possible. He realizes back in the early days of stereo the caps were limited in what was available but the circuit designers knew what they were doing and did it well, despite the lack of quality in parts back in the day. Can improvements be made? Very suggestive answer but he did say that when modifying values keep in mind the T/C's(time constants) and messing with them can make something sound out of balance(to bassy, too much highs, etc.). The idea was a flat response but is flat always the best way to listen? Thus either tone controls or messing with parts values to create a different sound.
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