Class d for ht.


I know there are class d haters, so no need to reply.  I'm running 9 channel, fronts is 2 ch bat, which is staying on my totem winds. Looking at 7 ch for 4 ch atmos totem ic82,  surround tribe II and center is Martin Logan cinema which will get replaced by totem next year. Receiver is anthem mrx720 and bluesound for music. I thought about monolith 7 ch for 1600.00, but at 93lbs I really dont want to lug it anymore, getting older. Lol.  Also my music/ht room keeps the heat in.  These are my reasons for class d. I have searched every forum.  At the end of this relentless search its come down to nord and apollon nc252 at $2150.00 7 ch or the apollon as4800 at $3200.00 8 ch.  I'm not sure if the as4800 with 1200as2 is worth the extra 1k and I only need 7 ch. But I will drop 1k extra of it's worth it. Room is 14x24x8.  Does anyone out there have any experience with these amps?  3200 really is my top. Still doing room treatment.  Thank you for any and all advice you may have.  It needs to be class d, room is just to hot even with central ac on. In the winter we keep heat off in this room. Center of the house. 

Thanks Pete 
pcc67

Showing 2 responses by auxinput

@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.
Reading back to your original post, you indicate that left/right channels are powered by a BAT amp.  I think this amp is going to be on the warmer side, so the ultra-revealing nCore amps from Nord may not be what you want.  They may be too bright sounding in comparison with the BAT.  Just a thought.

Both the Apollon and Wyred 4 Sound appear to use the ICE amps, so I'm going to assume they would sound somewhat similar.  The Apollon use much larger amp boards (S1200) which output 600 watts a channel, while the Wyred 7150 outputs 150 watts per channel.  Based on this and the size of the Apollon power supplies, I would think the Apollon would give more weight in the bass/midbass and more body in the midrange area.  I think it really depends on budget here.