Pass Labs x-1 high gain

Im using the preamp in the lower gain setting..

yes. the inner detail, even on the x2.5 is the best i've heard yet in my system. That was one of my 1st remarks about the x2.5; the noise floor seems to be so far down, which leads to excellent forward projection of whatever comes into the unit upstream. Spatially/imagaing wise I lost nothing when I moved from tube preamp to this. The only thing i think about from time to time is can i have it all? Can I have the mids that only a tube seems to offer plus the absolute silence and stunning dynamics of the ss...and afford it....!

What kind of power cord are you running?
What tube preamp did you have prior to the Pass X1?

I also have the X-1 pre. If I turn the volume knob quickly with no source it make a little static noise. Does not seem to be a problem though. I only use the low gain (4 db)setting- unless I really want to crank it up.

I have an X2.5 and that "pop" has been worrying, driving me crazy too. http://www.rothwellaudioproducts.co.uk/html/attenuators.htm
For late nite lower levels.

I also here a click on my x2.5 when changing volume. It almost goes away when gain is set to low and using balanced interconnects but I like the sound of the high gain better. The unit sounds great so In am willing to overlook the click and 3db volume steps.