The Absolute Sound review of the Pass INT-150 is in the September issue.
They said the front on view is "As imposing as a Peterbilt"
Neil Gader said "it's sweet and romantic, neutral and warm". Robert Harley in a side bar to the main review, "There must be a strong family resemblance between the INT-150 and the XA-100.5.
Neil went on to say "It's a musical force of nature."
You have to take reviews with a grain of salt, but as a former Pass Alep 1.2, 3, J, and XA-30.5 owner, I can tell you that Pass SS is very special and the only SS (well, maybe Ayre)that appeals to me, though I still prefer tubes.