Russ,
I just responded to another thread about my Aesthetix Calypso. I havn't had the Pass XP series in my system but the Calypso, with the right tubes, beats my last pre..Pass Labs X-0.2. There are many tube combos out there to change the sonic signature of your music...not so with a SS pre-amp. It took years (or maybe just the right pre-amp for my ears) to figure out. I have used Pass Labs amps for the last 10 years X-150, X-350, Aleph 2s,Aleph 5, XA-160s and now bi-amping with 2 Aleph 3s. My opinion is stay with tubes if you want something to play with...if not go buy the XP-10 or 20. The X-0.2 is a great sounding pre if you can find one, and a bargain at $3k-4k.
I just responded to another thread about my Aesthetix Calypso. I havn't had the Pass XP series in my system but the Calypso, with the right tubes, beats my last pre..Pass Labs X-0.2. There are many tube combos out there to change the sonic signature of your music...not so with a SS pre-amp. It took years (or maybe just the right pre-amp for my ears) to figure out. I have used Pass Labs amps for the last 10 years X-150, X-350, Aleph 2s,Aleph 5, XA-160s and now bi-amping with 2 Aleph 3s. My opinion is stay with tubes if you want something to play with...if not go buy the XP-10 or 20. The X-0.2 is a great sounding pre if you can find one, and a bargain at $3k-4k.