Pass Labs x-1 high gain


I'm using a x-1 into pass x-600's.It seems the gain on the preamp is high to me.I can't seem to get the display on the preamp higher then "14",With this as loud as I would ever want it .Do other owners experience this with this preamp??Also does anyone hear a slight clicking noise as you go up or down in volume?
spaz
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.