What about the voicing switch in newer Pal800 pedal?
How does the "Gain Voicing switch" work?
This three-position switch will allow you to get different tone responds (Voicing) in the gain section of the pedal, the change between positions will be more radical at low gain settings and smoother as you turn up the "Gain" knob. At maximum "Gain" knob position this switch will not affect the gain voicing respond.
The middle position is the most flat respond setting of the three positions, ideal to use at low gain settings (bellow 11 o'clock position of the "Gain" knob), the lower position will give you more middle and bass response and the upper position more brightness and less bass response.
Each position will affect the output volume level of the effect depending of the "Gain" knob position, in this case, you will need to adjust also the "Volume" knob to your taste when you use the "Gain Voicing switch".
Listen in some demo the effect that that voicing switch do I'd say it could change the bypass cap (680nF) in the first stage.
- No cap (or small cap) for the lower gain setting voice.
- Stock 680nF for the middle setting voice.
- A bigger cap, like 1uF (or even more) for the more high gain setting voice.
But I dont' get how it could be no effect at max gain pot setting.
Or, watching an official video, the high gain setting voice could be the stock 680nF. So the other two setting should beone with smaller cap and the other one with an even smaller cap or no cap at all.
Edit 2 (sorry):
I see just three transistor (transistors?) a none bias trimmer. What the...?