Normally when you try and compare two basses people say 'yes but different woods, different finish, different fingerboard etc make more difference than the pickups'
So here's a way to show how the 60's and 70's spacings sound very different ON THE SAME BASS!
Sadowsky have a pickup with switchable 60s and 70s spacing.
Watch this vid. The text is wrong, but the first sample is 70s, the second is 60s and finally a parallel mode.
As you can hear, the positions sound quite different!