Pass Labs X1 owners

Hello Guys,

I own a Pass Labs X1 preamp and since when I bought I left the preamp over its power supply connected by the stock humbilical cord.
Thinking about a good shielded chassis of the power supply I never tried to separate them.
Any Pass X1 owner here tried to separate them for better sonic result?
And if done .. what's the result?.. It's the same or did you get something better?

http://img205.imageshack.us/img205/2412/passtwjz4.jpg