Hmm. Interesting. I am not really familiar with Pass so cannot speak with any authority. I DO know at least TWO Krell dealers who heard the new 35K amplifier at a trade show and were blown away, claiming it to be the single greatest amplifier they'd heard at any price. As you know with CODA, power is not the end all. Current supply and other variables count as much if not more. There is magic in the XD platform that has to due with how the designer tweaked the impedance, but from what I hear, there is FAR more magic in the new i400. from Krell. What it is I do not know. -:)
All that said, this is what I would likely do, IF you indeed take this one dealer at his word that the XD is not as "warm:" pass on Krell XD 100% if you are OK to place all your trust in one man whom you've never met. Personally I feel it is warm and have owned the 300 FBPcx and the 400 FPBcx. I like the XD better. BUT...all THAT said, I totally trust and believe in the magic of No 16 CODA based on what I have read and the few dealers with whom I spoke, and would not hesitate to purchase it. For the money, there may be no better option, though many would state my Krell DUO 300 XD might sound as good or better. I dunno. And FOR SURE those mono block 575 XD's will blow you away. Of that I am sure. I just haven't heard the CODA but DO take all at their word it is FABULOUS. So if it about the money, buy CODA. I would for the money! But if you want the very best amplifier EVER you could certainly try to listen to those 575 XD blocks bc many believe they crush anything out there. But they cost a LOT more than the CODA No16. Otherwise if it is NOT about the money, wait on that new 35K Krell. I have met the engineer, David Goodman, and the man is a genius. And the fellow who ran Krell until recently said it was like something the world never heard before. And I always trusted his judgement. David Goodman has done something special with that amp.