Pass X1 preamp question


Has anyone noticed if they find a sonic difference by turning off the display of their X1 or other preamp? I just noticed today that perhaps the music is quiter(less noise) with the display turned off.It's like turning off the display of a CDP but to a lesser degree. I'm just wondering if pass put the option to dim or turn off the display for sonic purposes? Any opinions would be appreciated.
128x128mitchb
I've owned a number of pre-amps, including the X2.5 and the X-1. Zenaissance said it best.

-IMO
Also agree with Zenaissance, I was not sure I heard any difference at all.

Happy Listening.
I hear a slight edge off the top removed with the dimmer down. I know the digital circuitry is seperate from the analogue and the difference I hear is very subtle yet it is there. Not enough to have me dimming down the display all the time however. The difference is slight. A very touch more snap in the highs.
I have an X0.2. I can't hear any difference with the display on or off. I usually keep it off just because I find it annoying when I am listening in the dark.
Apparently it's psychoachoustical and being very suggestive by nature there appears to be a difference but there is none in reality other than what I think I hear. I love the preamp.