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Suggestions for Class D amplifiers with Marantz AV7704 and B&W cdm9nt combo for HT.

I am considering class D options for a multi channel HT setup. Partly because of where the amps have to go ( enclosed cabinet.  Not sure if fans will be enough to keep other amps cool enough.

I acquired a Marantz AV7704 and plan to use my current speakers ( B&W cdm 9nts and mated surrounds etc ) and so last piece is the amp. 

Are the current class D amps capable of reproducing solid sound quality across the board?

Used is okay. I was looking at:

wyred4sound
Red Dragon
ATI Hypenx

Will any of these mix well with my setup? If so - what else would you suggest to make the most of the gears? Certain fuses, power cords, ICs, etc... suggestions welcomed.

Are there other class D solutions that are a better fit?
lightfighter2018
tgrisham
1,291 posts
 
I still love my Wyred4sound SX-500 monos feeding Von Schweikert Speakers. Detailed with natural voices and solid bass, at least in my room. 
caphill
674 posts
 
I am not into class D and not a fan of it. Class D amps are fine to power surround speakers or Atmos overhead ceiling speakers in a HT setup. I would never use class D amps for stereo music playbacks.
While it’s true that today current class D design amps have come a long way and have improved quite a bit compared to older class D designs from back in a day like some 10 to 15 yrs ago or older, but they are still lacking body, volume, air, midrange bloom, full mid-bass & bass power and overall musicality in comparison to very high quality analog or class A & AB designs IMO. Class D can usually sound leaner thinner lacking body and volume and somewhat analytical and lacking that lush analog sound and don’t sound liquid and fluid as good class A & AB designs. It's true that today modern class D designs have smoother highs compared to older class D designs from back in the day. 

geek101
284 posts
 
@caphill Class D amps are also analog if I am not mistaken. 

@lightfighter2018 have you considered Hypex NC500 based amps like Nord or Apollon?.
erik_squires
16,119 posts
 
@caphill Class D amps are also analog if I am not mistaken.

Class D amps are binary, but not digital. Weird, right?

They are not "digital" because they lack an Analog to Digital conversion stage, however, the output stage switches between on and off.  The rate at which that switching happens is controlled entirely in the analog stage.

Best,
E

tomaswv
227 posts
 
I am very very pleased with my two channel system using a Marantz AV8801 as a preamp to my Bel Canto 500m monoblocks. Also in an enclosed cabinet (Salamander), and I have no worries about heat. Prior to the bel cantos I used adcom and B&K amps (200wpc) and moved to the BCs for the extra power and the heat factor. I think the Marantz and Bel Canto work well together. B My cabling was all Nordost but I did change my speaker cables to Acoustic Zen Holograms for a fuller sound with the BCs. 
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