Suggestions for audiophile grade receiver for Home theater setup

If you like your NAD Class-D power amps, then look at an NAD Class-D Receiver, continuing to use the stereo amps you have now for front left and right in surround sound too by way of passthrough. This should get you use of their Bluesound app too, which also has multiroom possibilities.

Another way to escape from the usual AVR power amps is to go with a surround processor like the Tonewinner AT-500. Emotiva probably has one with the same internals too. Don’t know how good the volume control is though. Hook these up to a multichannel Class-D amp from the likes of VTV in Ohio.

Looking to the future, if adventuresome, there are the Nuprime-X AoIP solutions. The H16-AIP is already here to do HDMI processing, sending audio over IP to their MCX-800AD. The H16 is still kinda a prototype though and does not support Dirac. Next year the coming HX16 should be the proper solution. If HDMI sources are not intended, then just hook a Mac up to the MCX-800AD via USB.

What is your budget? My HT is TOTL Marantz receiver, it works very well, my dogs get freaked out with door bells and door knocks on screen. Even myself have looked up a few time. Running 9.4.2 setup, so lots of speakers. 

Think Marantz, Anthem, Arcam....

I’d go with an upper model Sony AVR, STRAZ3000 or better.  They have full preamp output to dish off the L/R to your M32, which you set at a unity gain level when doing video content.  This is what is meant by HT Bypass.  Also, when choosing a center speaker, don’t cheap out!  The Sopra Center is what you want. 

Marantz, Arcam, Anthem

Def the brands Erik mentioned, but as others said, 100% use HT Bypass with a good 2 channel amp.