Experimenting with cap types

[ant]

I just did a test with 3 different types
500pf ceramic - standard brown disc type
500pf silver mica - flat sqaure vintage type
560pf polystyrene

And you can hear a difference between all of them! This was on the treble tone stack cap as this cap has the most effect on the amps overall tone. (Treble knob cranked)

Its impossible to choose which is best though they are all different.

Anyone else done something similar and come to any conclusion.

I think the 560pf has a fuller sound probably because of the 10% bigger value but otherwise close to the mica, the ceramic is more organic sounding not as trebly, seems almost like less output.

[Lonely Raven]

Did you measure them and make sure they all were coming up what they should come up as? That alone can make for a noticable difference.

I check every component when I put it in...I've found some components that are WAY the hell off.

[briane]

ceramic is typically considered more grainy, less smooth than mica.

The ceramic is also more noisy than mica. That is they tend to pass high freq. hiss, while mica tend to not.

sometimes thats a good thing.