Anyone tried an Audio Magic Pulse Gen ZX in their TRL DUDE preamp?

Thank you, Brownsfan.  I'm going to try your last point and see.  I should be able to do the same thing with the DUDE.  I'm sure there would be an extra benefit overall by using a Pulse Gen in both the DUDE and the MW Sony.

Bill,
    Roughly, what would be the cost of all the upgrades you mentioned if I were so inclined?

I would need to see your unit first as they are all a tad different. The wire upgrade should be under $100 total. The bridge rectifier upgrade would be under $50 total. The caps we need to talk and share pics. 

I think you have my email. My username here at gmail. 

Lets visit. 

Dorkwad, Correct.  No need to solder them in place until you are sure you like what they do.  I think these do have an additive effect up to a point, at which you probably have enough units that you have the RFI/EMI in the vicinity of you gear canceled, at which point there may not be much benefit to adding more.   One other point.  They don't absolutely have to be wired inside the units to work, although they work better for a specific piece that way.  You could wire the leads up to a standard AC plug with enough wire to reach various pieces in your system and get an idea where to use them by placing them on top of the case.  As I said, my preamp benefits from physical proximity to the pulse gen inside the MiniRef even if it is not plugged into it.  Keep me posted on what you find.