Originally Posted by pickups
Should the p pickup and the j pickup be 50% each or should one be louder than the other?
Obviously you have two volume controls so you set the mix any way that you like or sounds good to you!
But, that said, generally PJ basses are made so that when both volumes are up full the pickups balance 50-50. But because the P-bass pickup has bigger wider fatter coils it is hotter than a typical Jazz pickup.
Optimum would be to find a jazz pickup with more output. This is something of a problem because the P-bass pickup is hum-cancelling while the jazz pickup is ususally single coil. And that means that single coil hum will never go away. Some PJs are built this way.
On mine I didn't want single coil hum so I went with a hum cancelling ultra J. Works great only hum-cancelling J pickups often have lower outputs than P-pickups. Hence my bass doesn't do 50-50 when both volumes up full.
A common solution is to under-wind the P-bass pickup. That brings it down to balance the J. Which is fine only now you've changed the tone of the p-bass pickup when it's soloed. And this has led to the story that a PJ bass with the P pickup soloed never sounds like a p-bass.
Another answer is just to find a hotter hum cancelling Jazz pickup.
But personally I figure just how important is it that I've got 50-50 with both pickups up full? I guess it depends on how much and how fast you want to adjust the mix. For me just setting 80%-full to get a 50-50 mix works well enough. Like I said there are two volume controls so you pick the mix that gives the tone you want.