I can't wait to hear these, I've been drooling over them since they first showed them a year or so ago.

Umm, Is it Class AB and ... within a Reference Quality level product?

With the exception of the BDP-S1 (I also have the S7700 and S7000 for comparison) in both of our main systems (yes I know we are reviewing audio) SHOULD a con for this level of product be that it can't fit into a equipment rack? I use the Krell 250Ms and would I consider putting them in a rack? If I had 6 of them (5.1 setups), I think tornado like forces would have to be moved to keep them cool under stress. Also, with the flatness of freq of the 53, are the Transparent speaker and interconnects with Xovers within your setup overkill the reason for a ML 53? Sorry, I have the AlphaCore flat coppers (with custom gold plating over copper ) and Acoustic Zen XLRs (1/2M) also the 1Ms/ RCAs. Oh, if we look under the covers why with such a large surface area does ML consider this product to "maintaining a constant, thermally-balanced operating temperature", then why do we care? Does working cooler make it sound better? These are amps designed for the front pair of speakers within the stereo world and maybe some trickle-down can be done for the Multi-channel amps without fans?

No, I don't know how one SHOULD review this product? Actually maybe, drive the most inefficient speakers. Maybe subs (maybe my main speaker subs at about 2ohms at over 100db), in a closed room and see if this thing thermally shuts down. Why does the 33H have a SN of 105 at full output while the 53 has 80 at 1 watt? Are these numbers better than my older 250Ms? So, some comparison with the 33 and/or the 33H would (be) have been nice. But yes, a high-end pre (ML 32) in the mix would be nice, but how far into the diminishing returns are we with this product more than the 33s or my 250Ms? I think my pre (Krell KRC-HR) is my weak-link. So, a review of this product IMO really needs to be what can be built at the say $500k price point and what would be the diffs of that and the $250K price point. Oh, and in reality IMO my CDs and player are really the weak-link because they don't do 40K oversampling and deal with a much smaller bits per sec rate of data than what could be accomplished with todays state-of-the-art data rates.

And for the curious part of my system is the vintage self modified Infinity IRS Betas (custom mid xovers by WIMA, Solen, AlphaCore, etc) (mids driven by the 250Ms or VTL MB 450s) with 8 servo sub channels of Genesis power and/or the Carver Research Lightstar 1 amp. Yes, I have two plus sets of these speakers and.. the Martin Logan Logos center and ML Quest rears, and Revel Gems and Wilson Audio Watts and .. My video is the 50" 1080p plasma Pioneer Elite Kuro.with a pair of Salamander uprights on a simple custom maple stand. Lastly, I do own a older vintage Mark Levinson 23.5 amp (505Watts at 1% on 9/91 by Stereophile) driving the rear Quests.

And still if this product is close (or better) to the 250Ms or 33s or ... , a audible difference is unlikely.

After reading this "review" i was not sure if the reviewer had ever heard them. I don't see any mention to how they sound other than "...you need to appreciate just how insanely good they sound".
How do they sound?
I guess i need to dig around more, after looking at this "review" and the ML web site i missed what the THD and IM distortion is.