Good amp for B&W 804S for the space-constrained


Good morning folks. I've recently purchased a pair of B&W 804S speakers and need to upgrade my electronics (Denon AV Receiver) to get the most of their sound. Unfortunately the shelves I can use are somewhat shallow. Thus, I'm looking for a solid amplification system that will fit in, let's say no more than 16" including space for the interconnects. Not an easy task, unfortunately. Some ideas I've had (and even demo'd to some extent):

Naim NAIT XS (or maybe even SuperNAIT)
Simaudio Moon i3.3
Rotel RB1552 + pre?

Anything else I should be looking at? Has anyone had experience with any of these in combination with B&W 804S?
nichomoff
Jdec, I tried the W4S briefly (new out of the box) on my ESP speakers which were designed for a tube amp and it sounded ok but not awesome. I only ran it for about 14 hrs, and in that application I preferred the Cary which is second fiddle to the VAC. I have since swapped speakers to the N802 and plan to put at least 100 hrs on the W4S. I have not tried the Cary on the N802's and at this point a comparison would be unfair until the W4S has broken in. I am using a generic 14/3 power cord which I also used with the Cary. My guess at this point in time, is that the W4S will win.
Thanks for the suggestions. Will see if I can find a dealer. Someone I work with mentioned the Exposure 2010S. I've since done some reading and it seems this is a popular unit. Wondering how it may fare with the 804S and how it compares to Nait XS or Simaudio i3.3.
I'm also using the Wyred4sound class D amps on a pair of 802D's... no thoughts of changing. You need 300-500 hours for the amps to be at their best. I am bi-amping the speakers, 250's and 500's. All the current B&W's need.
Ended up going with the Exposure 3010S - had heard about the company from a co-worker. Got a good deal on this model and am very happy with it, for less than half the cost of Simaudio (which I'm sure I would really have loved). Haven't had the volume past the 1/4 mark, so no concern about power.