New Pass Labs X.5 series versus previous X series

I have owned X150, X250, X350 and now the X250.5. The X250.5 is by far the best sounding amp in the X series or maybe the X.5 too. I like the X250 better than the X350 and I assume the X250.5 should outperform the X350.5. The X250.5 is less aggressive, more sweet, relax, extended than the X250.

Actually I was thinking of getting the X350.5. But I am 100% convinced. Being the fact that X250 outperforms the X350. I really have to audition the X350.5 and go from there. I hope I will make the right move this time around. Anybody auditioned the X350.5 and wants to shed some light?

Sorry, I meant to say 'I am NOT 100% convinced'

The 250, which employs smaller caps, is a more current design from Pass than the 350, which employs those big caps. Most other amp mfrer like Classe etc. also uses small cap in their current amp design. Smaller caps dissipate current/energy much more quicker. Sonically IMHO, it is a lot more faster and better pace and usaually more extended. That could very well be the reason that X250 outperforms the X350. Talked to Pass people a few times and have learned they didn't do anything extra to the 350.5 than they did to the 250.5. I really doubt the 350.5 would outperform 250.5. Maybe in situation that requires the extra power. But, it is interesting to see the feedbacks from other 350.5 and 250.5 owners.

I had both X250.5 and JC-1 for 3 months driving my Studio. I had such high hope for the JC-1, but shockingly the X250.5 blows it away cold out of the box. Much faster, a lot more extended high end(JC-1' weakest area) , much better defined and controlled bass. And now I moved up to the X350.5 and it is in a class by itself. A lot more authority, dynamic, body, sweetness,....... I really don't know whatelse to expect from a SS amp. I heard some people prefer this amp over the XA160.