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weird pot behaviour !?...


nuno1959
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OK, I confess I didn't read all of the above posts. I only read the OP post. The slight level drop with both pickups full on is an inherent characteristic of all Jazz basses and similarly derived instruments. It's caused by the impedance drop of the pickups when both are full on, and a little bit of comb filtering from the pickups being so far apart. It's not the pots. It's not the wiring. It's not the pickups, per se. It's due to the combination of both pickups, and the electronic explanation would take a little bit of bandwidth. If it bugs you that badly, you can always play with either one or the other pickups rolled off to about 8, or solder in a .01 mfd capacitor to the hot lead of the bridge pickup between it and its volume pot. When I had a '75 Jazz bass in the early '80's, I routinely rolled off the bridge pickup to about 8. With my current custom P/J bass, I soldered in the capacitor, as it will do the same thing. Yes, a good setup and quality parts will minimize the effect, but it will still be there. It is what it is.

Edited by iiipopes
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hi iiipopes

yup, that's what i'm doing these days - rolling off slightly 1 of the vol pots, sometimes even just playing with the bridge PU, it just puzzled me since i NEVER played a J-Bass before & jumped to the conclusion SOMETHING was wrong!! :-b

thanks for chipping in ;-)

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