#1
I have a EH Big muff pi, and although I really like it im not totally satisfied with it.

I was wondering if anyone had some good ideas on how to tweak it and give it a better sound.

I will post a picture of the circuit board if that will help (disregard the red writing)
#2
If you have the Russian version, you could replace all the reistors and capacitors with higher quality ones.

Install a 9v dc jack so you can use mains instead of just batteries.

True bypass could also be a good idea if you don't have a true bypass looper.
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+1
#4
EHX pedals are really hard to mod for true bypass.

Luckily I just finished my true bypass looper and it works perfectly.
#5
Depending on the sound you want, yeah, you can change out the clipping diodes.
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#7
Quote by electrcspano335
what kind of diodes would be good to switch in?



Well, it depends what sort of tone you're looking for. LED's will give you a bit less volume but sound more 'crunchy' (best way I can think of describing it). Germanium diodes (1N34a's and the like) will give a bit smoother tone, while normal signal diodes (what you've probably got in there now - generally 1N914's) will be a bit more distorted and not as smooth. You can also use MOSFET's and FET's for the internal diodes, they are meant to sound more tubey, I haven't had much of a play around with them yet.
If you want to smooth the tone up a bit, replace all the ceramic caps with silvered mica. Next work out what components are you tone controls and have a play with different values of capacitors.
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