Big Muff cap mods change what?

[ashbass]

The schematics for the Big Muff say that changing some caps to higher/lower values are reported to make the effect "sound better."
Sound better, how? What do these cap changes do to the sound of the effect?

-changing coupling caps from 1.0 to .01 uf
-changing diode feedback loop caps from .01 to 1.0 uf

[smoguzbenjamin]

Think of it this way; bigger caps pass more bass. Smaller caps pass less bass. So a smaller coupling cap will pass a higher signal while a cap in the feedback lopp will mellow out clipping a bit I think...

[Ed G.]

Think of it this way; bigger caps pass more bass. Smaller caps pass less bass. So a smaller coupling cap will pass a higher signal while a cap in the feedback lopp will mellow out clipping a bit I think...

Not exactly...a big cap and a smaller cap both should pass high signals similarly, but a large cap passes more bass, as you stated above. Using a smaller cap (but not too small) can result in a more focused sound, whereas a bigger cap can make the sound a bit too wooly or muddy.

[smoguzbenjamin]

Yeah I sortof mis-worded that... I need sleep :roll:

[ashbass]

Using a smaller cap...can result in a more focused sound, whereas a bigger cap can make the sound a bit too wooly or muddy.

So making the coupling caps smaller should thin the sound out?
What does the extra bass do to the feedback loop?