Originally Posted by line6man
The greater the separation, the greater the phase difference.
I absolutely agree, i have a 1970s SAKAI 4 string bass. yes. very weird. and i changed the place of the bridge, and made a custom pickguard, cuz original was wasted, and i have a pickup on off switch, the tone blend between them, has changed, cuz i made a custom pickguard. and it is milimmitters way away to treble side of strings, G string in this case, which means my lowE sound little. everything you mod bout the placement of pickups will severally affect your tone. sorry for the long reply.