[sdiy] Discrete Op Amps

[Colin f]

> > "All distortion pedals sound the same" is true in the same way that "all
> violins sound the same" is true.
> 
> https://www.youtube.com/watch?v=bpTv2jAree8

That's far from a scientific test.
I'm pretty sure the op-amps don't contribute any more than a tiny part of
the sound of a fuzz pedal compared to the diode clipper and tone stack, but
if you want to prove this, you need a proper double-blind, ABX test.
I have changed op-amps in pedals in the past that made a big difference in
sound.
For example, I swapped out the 4558s in an EH Q-tron for TL072s, and greatly
preferred the end result.

Cheers,
Colin f