Hi Bill,
it seems we guitar players are a small minority on this forum, so thanks twice for your help...
I know about the bass pass filter, my only problem is its response/curve: I think the filter is set to start very high in Hz, so that when it comes to the heart of guitar frequencies the spot where you can move is really small.
I think this filter should be the same that is found on basses; there it make sense to have it open this much in the high end as that is the frequency where you can help slap dynamics and harmonics to come out from a bass, where you have to gain high frequencies because there are no string notes that are close to be so high in pitch.
On guitar we have notes that are playing in that freq. range so that the filter open means to have the whole notes come out very clear and bright, sounding as there was a piezo pickup.
I am thinking about a filter that cuts the highs with a longer curve, allowing you to reach the position you get with the bass pot at 1/2 of its range with a more subtle passage.
Still think that these pickups would need some mid boost.
I read some docs about the Q-switch and I don't think it will be a solution for what I'm looking for.
As I understand it is a boost which acts on a frequency positioned at half between the current high cut and the bass.
This means that to choose its operating position you have to cut highs accordingly.
This means that to have the desidered mid boost could mean that you are having too much or too little highs.
I want to choose the mid boost range and its Q possibily ( Q here is not the dB value but the size or the affected frequencies around its center).
So, I am open to any suggestion, I just wait for them !
thanks,
Luca