So... tone capacitors, truth or myth?

Pickups, wiring schemes, switch techniques and onboard active electronics for guitars

Re: So... tone capacitors, truth or myth?

Postby mictester » 14 Jun 2013, 10:48

marshmellow wrote:Cyril Bateman's measurements are probably the most extensive ones published. For more recent write-ups read Douglas Self or Linear Audio.


Please read the articles VERY carefully. Now go and learn some basic psychoacoustics.

You will discover that NOBODY can hear distortion approaching 1% in real world tests (you MIGHT be able to with a single tone in an otherwise silent environment). Douglas Self describes any amplifier at under 0.1% THD as "blameless". Cyril just managed to detect distortion products below 0.001%. These figures for capacitors are so vanishingly small that they are entirely insignificant, especially when considered in conjunction with op-amps (with typically 100 X more distortion), transistor stages (that are seldom optimally biased) and the cheap and nasty crackly pots, connectors and cables typically used in a guitar set-up!

The golden-eared morons who "audition" passive components are just deluding themselves and simply ripping off their customers.

I defy anyone to hear ANY difference, in ANY environment between differing capacitors of the same actual value operated inside their rated working voltage. If you can correctly identify types of capacitors of exactly the same value in actually proper blind testing, then your ears are more precise than the very best audio measurement equipment. You'll also be able to detect which way the "metallic grain" is running in the "directional" audio cables and believe in the Tooth Fairy.

I'll say it again, just so that you can sneer some more: If you can't measure a difference, it doesn't exist. My Audio Precision test set is better than anyone's ears, and I (like any other real professional engineer) will trust actual measurements rather than silly suppositions and half-baked, partially understood "theories".
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Re: So... tone capacitors, truth or myth?

Postby bajaman » 14 Jun 2013, 11:14

"but is it true bypass ?" :popcorn: :popcorn: :popcorn:
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Re: So... tone capacitors, truth or myth?

Postby FiveseveN » 14 Jun 2013, 12:16

And does it have a "real, clunkin' power switch, none of that standby rubbish"? :D
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Re: So... tone capacitors, truth or myth?

Postby mictester » 17 Jun 2013, 19:11

FiveseveN wrote:Audiophile mythology is anthropologically quite interesting, provided you can observe it from the sidelines.


It's actually funny.

Here's a great game you can try with any of the bigger "Hi-Fi" comics:

Read the reviews, have a giggle at the "forward midrange" and the "shimmery strings" and all the other specious nonsense, then compare the ratings they give each piece of equipment against the number of column inches of advertising space each manufacturer has bought. You'll see that they're usually directly proportional!

the other funny thing is to see how much these clueless reviewers like distorted sound - if it has valves in it, it must be better. Unfortunately, what these fools don't understand is that most valved equipment has typical distortion figures around 10%. If you apply lots of negative feedback to clean that up, you get all sorts of other artefacts introduced (often including more unpleasant sounding non-linearities), so these clowns LIKE even harmonic (concordant) distortion! They like their sound with severe slew-rate limiting and limited frequency response....
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Re: So... tone capacitors, truth or myth?

Postby phibes » 17 Jun 2013, 20:46

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