Power Amp..opinions please


Hi All,
I am looking for a power amp (mono or stereo) to go with my Promitheus Reference C-Core TVC. Till some time back I was leaning towards the Wyred 4 Sound's SX-1000 monos. But as I read the net, I found people mentioning that the initial impressions of class D are detailed sound, neutrality, "true to original" etc. 10audio also has a great review about the wyred4Sound amp. At one point I was considering the RWA Sig 30.2 amps, as 6moons had a glowing review for these. Later I decided that they will not be enough for my average efficiency speakers.
Now I also read from others threads that as time goes by Class D becomes boring, no tone, etc, etc. I am a bit confused now and cannot decide which way to go. There is no dealer nearby that I can go to and listen to a Class D. So I also started to look at used Bryston, Parasound, Pass, McIntosh, Ayre, etc.
Can you please provide your experiences with Class D VS Class AB amps? Please do not suggest tubes. I would be using the amps with a Marantz SA-8260 CD player, Promitheus TVC and Quad 21L speakers. The cabling is Signal Cable through out. Currently using the NAD C352 integrated amp as power amp, but want to explore and experience a bit more high-end sound. A constructive thread with opinions (rather than mine is better than yours) will be highly appreciated and valuable to the forum.
Thanks much in advance.
128x128milpai
Just to clarify, Bel Canto class D Ref series contain analog ICEpower modules. Ref 500 is based on the 500ASP module; Ref 1000 Mk.1 and Mk.2 have been designed around the 1000ASP module.
I have most experience with Ref 1000 Mk.2. . . Ran it for 4 months before completeing my PFO review. there is nothing sterile nor congested about this amp. Rumour has it that Ref 500 may be even sweeter. Regretably, these devices -- even used -- tend to exceed the target budget for this thread. G.
Thanks guys. I was out for the long weekend and did not get time to go through the updates.

Mamboni,
Good to know that the W4S may sound good in my system. I found from the user manual that the Marantz outputs 2.2V.

Timrhu,
I am a bit worried that if the new amp is does not have the good characteristics of the NAD sound, then I will really have some (many) sleepless nights despite spending some $$$$. I see that you have updated your system pics with Quad 21L2. I really love the dynamic Quads. You will not believe it, but I have heard some Dynaudio, Triangles, Totems, Dalis, Paradigms, etc in their price range (and couple thousand $ more) and the Quads come out on tops for me.

Mechans,
That character of Class D is what is keeping me away from finalizing on a good Class D amp. I can get a demo Spectron Musician MK II - albeit at a bit higher budget - but I am still not decided.

Guidocorona,
Yes the Bel Cantos exceed my budget by quite some $$$$.

At this point I am seriously looking at the Parasound A21. Does any one know if this amp has been upgraded (internally)? I believe that this amp was meant for home theater rather than 2-channel. Any cmparisons of this amp against other highly regarded amp?

Thanks
Mechans,
I have repeated this in other threads - I am not a "devout tube hater". It is just that I don't want the problems of tunes like biasing, heating, matching, etc. Don't have too much time on hand for those issues. If I go tubes, I will loose whatsoever little time I am able to devote to this great hobby.