Biasing transistors or JFETS . . .

[msb69]

Will this have any effect on how bright or bassy a pedal is overall?

I've got a pedal with bias pots for each transistor.  Will adjusting these allow me to voice the pedal a certain way?

[formerMember1]

Will this have any effect on how bright or bassy a pedal is overall?

I've got a pedal with bias pots for each transistor. Will adjusting these allow me to voice the pedal a certain way?

Yes.  But other parts make up the tone too.  Capacitors control alot of the tone also. :wink:

Try searching the forum for a better answer.  There is a real lot of info about biasing transistors on this forum.   :wink:

What pedal is it?

[davebungo]

The answer to this question simply put is that it could well do and feel free to try - just remember where the trims were before you disturb them.  

The normal purpose of trim adjustment, however, is not to "voice" an effect but to adjust a circuit in order to compensate for uncertain device parameters.  If all device parameters were known in advance there wouldn't be many trimpots in effects.  Usually a trim will adjust the DC operating point (or bias) of a part of a circuit to allow the signal to swing up and down in a fairly symmetrical manner (excluding effects which depend on asymmetry).  Trims could do all sorts of things - it is best to find out before you tweak if you are unsure.