PASS LABS INT-150 or X-250 with X-1

Zeebee,

I don't think you realized that the X .5 sounds a bit differently than the older X series. I also have the X350.5. Prior to purchasing mine, I had heard one in a friend's system in a side-by-side comparison against a X350. The original 350 deviated from the Pass signature sound quite a bit, and sounded more cold, sterile. The X .5 seemed to infuse the midrange magic from the Aleph series into these amps. I don't know anything about the INT-150 and have not heard it myself.

Adding the X1 will help to some degree. I had heard both the X1 and the X0.2 in my friend's system. The Pass press had more warmth than the ARC REF 2 Mk I with stock tubes. Depending on how much warmth you are looking for, this may or may not be enough (to your liking). I like the 350.5 very much, but wouldn't touch the 350 with a 10 foot pole.

FrankC

My comments were meant to touch on the subject of how different the X .5 series is from the non .5 series. The comments I made for the X350.5 vs. X350 should also apply to X250.5 vs. X250.

There are just as many people that will say that X250.5 is better than X350.5 as the other way around. Since I own the X350.5, I cannot be objective. ;-) I don't know anyone local with an X250.5. Otherwise, I would love to do a side-by-side shootout.
FrankC