Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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RE: Comments about AC caps from The Great Capacitor Shootout (5.6-10uf)

Posted by Lew on May 22, 2017 at 08:05:29:
With all due respect and no intention to insult you, Tweaker, I frequently read testimonials such as yours, describing major improvements due to what appear to be small tweaks. (Safety is not under discussion here, only hyperbole.) When I read these posts, it always makes me wonder what the sound was like before installation of the tweak. The impression I get in this case is that the sound was pretty bad: "grainy", lacking in a sense of depth (the opposite of "deep"), and shrill (the opposite of "less glare"). I am prepared to believe one can hear a positive result from these small tweaks, but not complete transformation of the sound of an entire audio system from what must have been very unsatisfactory to Nirvana. In fact, your example of placing filter capacitors across the AC line probably does help globally, if the AC was badly contaminated with noise to begin with, as it might be in an apartment building, for example. Some of the other lesser tweaks to which such miracles are ascribed really don't seem likely to please one to the level of ecstasy sometimes claimed, such as the difference between one expensive AC outlet and another or one expensive fuse and another. I think we need to keep in mind the very strong factor of listener bias in evaluating tweaks or any other change to an audio system. We're all subject to it.