I owned the Pass X1 for about a year, then sold it. Not because I disliked it, but I wanted to get away from using any preamp, and rely instead on my CDP's volume control. The X1 is very transparent, slightly lean/dry in the mids, very tight in the bass, and highly refined in the treble. Soundstage is just what's in the source, no more or less. I prefered X1 to comparably-priced preamps like ARC LS-25 and Levinson 380S. But if your system is already analytical, the X1 may take it over the top. Really should try it out if possible....
