Originally posted by Guitarburetor
Wouldn"t it be nice if questions were directed to the people who could answer them? But then, I suppose drama has it's own life to live...
The story goes like this- I installed the EMG-X pickups in Luke's Gold guitar at a gig. I had every intention of installing the active Tone module, but sound check was looming and Luke said "just put the new pickups in there and let me check it out". After the sound check he said "I love 'em, let's not mess with it. Later, we put the active Tone module in a guitar for him with the EMG-X pickups, but he wasn't digging it, so we left his main guitar alone. Whatever affect the passive Tone control has on the output, he likes it better and was able to get the sound he wanted. As always, when we make a production model, we make it just like the signature artist uses it.
Now, to address the other issues in the link BP forwarded to me-
This version of the 5-way switch is used because it has a lever long enough to go through the wood, since there is no pickguard. Kinda boring, but true.
Whatever percentage of the time Luke DOES use a pickup combination other than Bridge alone, or Neck alone, is why the other 3 positions are there.
The PC board IS there to neatly, and reliably, make all connections to the pickups, the DC power, and the controls. No need for tape, heatshrink tubing or lots of bulky connectors and screw terminal connections.
Rob Turner is certainly the expert on the design of his products, and someone I respect. Having read both Rob's and Bruno's comments, I did what any wise person who cares about their products and reputation might do- I got Luke guitars with both X and non-X pickups and checked them out. From Rob's explanation of the pickup's (active) output impedence, it made sense that connecting the same tone control to the non-X pickup with 10k output impedence would also affect the sound, if connecting it to the X pickup with a 2k impedance did. What I found out is connecting the typical EMG passive tone control (25k pot and .1uF capacitor)to either pickup had a similar result, which was a slight high frequency roll-off and a slight (but noticeable) drop in output.
Luke is one of the greatest guitarists of all time, and the expert on what he likes, which in this case is the EMG-X pickups with the passive Tone control.