I was always under the understanding that he had the whizzer set-up to provide 'control preset positions' for the vol and tone controls on his modified 5E3 (a thing with 6L6s). One setting for these parts of these songs, another for those parts of those songs etc. Tap your foot on the footswitchy thing and it changes the knobs automatically - like a kind of a obsessive-compulsive guitar amp twiddler thingy like monkey uses foot to save hands for other tasks king of thing.
Yes that's it. It's for the interactive volume controls. The servo motors that change the volume controls are controlled by foot switches that are interfaced to the "Whizzer" through a midi system that has a memory for keeping his settings. It's a custom set up a guy made for him.
You can get a lot of different amounts of gain by playing around with the setting of the 2 volumes.
I've never seen him play that black Les Paul anything but wide open!
He doesn't need, to he's using the amps volume controls instead.
He also has the tone controls disconnected on his Les Paul.
Tone Quest Report mag. has interviewed his guitar/amp tech a couple of times and went through what/how his rig and guitars are are set up. If you really like Neil's sound/music it's a pretty good read.
Brad
