I heard the XA-160s with Eggleston Works Andra II's. If you like the Pass sound, the XA is a welcome step up from the X-350. More rounded, fluid, altogether more musical. The Andra II's are phenomenally good, the kind of speaker that will stop you from looking further.
Sorry, but outside of being a recommendation that you simply didn't like, that wasn't a disruption. I've heard the amps with the Andra IIs, and highly recommend the combination. You will also note that I did not disparage the Pass sound, but suggested that this combination could be just the ticket if you like Pass, which you obviously do. Truth be told, I've never been enamored with the Pass sound, but this might give you even more cause to investigate the Andra IIs. Because despite the probability of me not enjoying the combination, I did. In addition, as I have heard many a VS speaker--and the Andra IIs being a VS design--I'd recommend hearing those as well.
Greg, you have taken a dismissive, condescending attitude toward every suggestion that wasn't previously on your radar. So with that, I'll excuse myself from this tete-a-tete with the recommendation that you spend a day or two driving to Bay Area and/or LA dealers who carry the speakers in which you're interested, and then you can decide for yourself. Because $10K is a lot to spend when relying upon the kindness of strangers. :-)