I play a p/j jaguar vintage modified squier (active) bass that has a vol/vol/tone/tone setup.
I changed the p-pickup yesterday (due to the fact that the old one just died) and it sounded great, the problem came afterwards, when I turn both volumes up E and A string sound bad (flatter, with no bottom end) while D and G sound well, but when I try the sound with only the P or the J pickup all strings sound ok.
I'm not sure which kind of problem it could be, (I guess it has to do with the pots) I didn't rewire anything when I changed the pickup.
Also I'm not sure if I had this problem before changing the P pickup but I reckon I would have noticed.
Does anybody know what kind of problem could it be?