anyone care to compare a J type front with the original 51 type single bobbin P Bass pick up?
I will...
To set the stage so to speak:
I have a mix of J's, P's, P/J's, and a '51 Tele style bass. My primary bass for most gigs is a Fender Jazz that has DiMarzio Area J pickups. I play mostly fingerstyle but I love to do pickstyle too and when I do that I use just the front pickup on the Jazz.
With some bass rolled up and treble rolled back on the amp it has a nice fat tone. It's clear and defined with a nice click to it when I palm mute. (I have standard Fender single coil pickups in another bass and the tone is similar)
The '51 P wears the same strings as my Jazz (Roto TruBass tapewounds for those keeping score at home) and it has a Lindy Fralin split pickup so it doesn't hum. That pickup has WAY more low end than the Jazz neck pups, OR a standard split coil P. It's just massive sounding. (The original pup sounded similar, but not as big as the Fralin and it obviously had the hum characteristic of that single coil design)
I have found I can approximate the tone of a split coil P with my Jazz basses using the neck pickup, but really can't get close to the '51 style pickup, it's just a different beast altogether.
Before I bought the Fralin '51 split I called them to get some tech info and Lindy himself answered the phone. I expected him to answer my questions and have me off the phone in 2 minutes flat...you know, the old bum's rush you get from most companies. We must have talked for at least 20 minutes and he covered every detail I could think of about this pickup!
For what it's worth, Lindy told me he believes the '51 style is the best design of the Precision pickup, far superior to the split coil. The reason is that the pole pieces are in a straight line as opposed to the 2 piece design of the split, and the tone is therefore much more consistent across all the strings in a way that is not possible with the 2 piece design.
Lindy is an active musician himself and he said the only bass he keeps in his recording studio is the '51.
Interesting stuff to me.