m0jo said:
nomad100 said:
Have a hard time thinking they would make to big of a difference, considering that they just dump highs to ground. The signal going to the amp does not go threw them. Ceramics cap i think i read r more susceptible to picking up noise than other types. I'm sure that having a tone control at all probably dumps a little highs to ground. the difference in value due to tolerance could give you an impression of a difference in tone.
They might have a different cut-off between what frequencies are and are not let trough to ground.
A tone knob in a guitar gives a tonal change because there is a potmeter in between which acts as (ver slightly) as a capacitor (look at a picture of a pot's guts and you'll see why).
In modules there is no knob/pot, there is a switch, so with it off it's like there is no switch and cap there, thus no change whatsoever to the sound.
Actually, the cut-off freq will be about the same from cap to cap. The variances will be in the tolerance, dielectric, quality, and any resistor in series or parallel, to the cap.
Potentiometers are actually variable resistors. Caps are used on guitar pots to form a low-pass filter (tone) and high pass filter (volume). The high-pass "bleeds" high freqs into your guitars output, so it doesn't get too dull/dark as you turn the volume down.