would replacing both the p and j pickups of the active p-bass cause it to lose its tonal features (liek all the tone knobs lose its effect), same question with the american p bass, would the s-1 be useless if i replace pickups?
I replaced the P/J's on my active P bass with no loss of tone control/EQ etc.
The same would go for the american P bass. The pickups would be wired just as the stock ones.

Fender Geddy Lee Jazz
Fender MIA Precision
Musicman Bongo
Boss TU-2
EBS ProLine 2x10 x 2
Yeah as long as you get it wired up properly it will be fine
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