Class d for ht.

@pcc67 - I hear you on the ATI.  I usually try to steer people towards the ATI offering when they are looking for Class D because they are one of the only vendors that have done a custom design implementation of the nCore amp using full linear power supplies.  The AT527NC is $4195 retail, so I totally understand your budget point of view.  However, that price is the cost to get an nCore implementation that is much better than either Apollon or Nord.

The Nord solutions use the generic NC252 board that has 2-channels and an integrated switching power supply.  It doesn't look like Apollon offers a multi-channel amp (at least not on their website) and I cannot find reference to the AS4800 model you are talking about.

@auxinput, the as4800 is on apollon website under multichannel.  They are using the 1200as2.  Ati is way out of my price range and I need 7ch. I had set my range at 2k and looked at monolith, but for reasons listed above I decided on the nc252 or 1200as2, the later being 1k more but being newer tech and significantly more power.  I'm really maxed out at 3200.  I've already dropped quite a bit this year on equipment.  
I can't believe no one else has used any of these 2 amps. Maybe due to fear of others who dislike class d. I totally get the class a and a/b debate. But the 7 channels are for ht, not music which is left for my Bat amp, which is an excellent amp atleast for me. I almost thought of replacing the bat with the anthem str, but after a/b in home side by side the bat crushed it, in my system. Now I need an amp for ht channels. I've checked out all the competition and in my price range it came down to Nord and Apollon.  Hopefully I will be happy or it will be returned in the 14 day return policy.  I did see the thread which had over 1400 post on class d, but after 2 pages I realized no useful information there, just alot of bickering back and forth which doesn't help anyone. Big egos and lots of nonsense. I does seem some major brands are venturing into class d, I guess they all must be wrong.  Horse and buggy, then Ford manufactured cars, I will keep my car.
Pete

I can't believe no one else has used any of these 2 amps.

A'gon tends to be mostly about 2 channel listening. You probably want to try a more HT focused forum to get your answers.

Given these are for surround channels and not primary music listening, why not Classdaudio?   They have a good reputation and you could purchase 2 of their 4 channel amps for under $2000.  Then spend the difference to have your HVAC ducting for the room resized or a booster fan so you a comfortable in your room!

I also made the change to class d for the same reasons in my 11.1 Auro-3d / Atmos system . I'm currently running a Marantz AV8805 along with
2  Class D Audio  SDS-470 4 Channel amps and a SDS-400C 2 channel amp , also a Nuprime STA-9 in mono and it's a fantastic combo .
Unfortunately the evil upgrade monster is back , and I been thinking about trying a L/C/R 3 channel amp and ATI , Apollon are on my list.
I would think about 3 & 4 channel combo instead of a single 7 / ch amp , as the front l/c/r are priority as I'm sure you know .   
I like the Apollan AS3600 as it can be used as a true three mono amplifier. This means it can be a 3 mono blocks design if only channels one, three and five are used. In this case each module is in mono mode and full power is available for each channel.
I would like to try the 1200AS2 , but ATI USA made keeps calling my name !
Maybe try a single  Class D Audio SDS-470 4 Channel , I think you will be surprised...worse case use it for the height speakers and you have flexibility for your front mains .