Which solid state power house: Naim NAP 500DR or McIntosh MC611?

There’s no such thing as all else equal. The amp highly depends on the speakers it drives as well as the rest of your gears (your preamp, front end source components, cables, etc). What are your speakers and the rest of your setup gears? Your preamp, front end source components? It's all about system synergy and all. It's very important that your speakers have great synergy with your electronics and cables in order to achieve great end results. 

In general, the Naim NAP 500DR is superior to the Mac MC611, better musicality, musical rhythm, rhythmic drive, more refined overall. The Naim NAP 500DR comes in two box configuration with Naim 500 power supply unit. The NAP 500DR is a dual monoblock amp with each channel independent from each other and can be bridged. The amp is stable all the way down to 2 ohms.

The Mac MC611 is pretty solid monoblock amps with lots of power (600 watts @ 8, 6, 4, 2 ohms). Again it really depends on what speakers you have and the rest of your setup gears.
The Naim NAP 500DR retails for $22k whereas the Mac MC611 retail for $14k/pair. If you have $22k to spend, go with the Naim NAP 500DR. But again, it’s hard to make recommendations not knowing what your speakers are and the rest of your equipments eg your preamp and front end source components.

I'm upgrading entire system. Speakers: I'm leaning towards Focal Sopra 3, Scala V2 or EgglestonWorks Vigniti.  I've ruled out Wilson and Sonus, and haven't listened to KEF. 

Preamp: will surely be same brand as power. If McIntosh, then C2600 with the MC611.  I like the C2600 b/c of DAC/Phono/Headphone stages. If I decide on Naim power, then will pair it with Naim preamp.  

Sources are vinyl and streaming.  I have a Pro-Ject Debut Carbon turntable that will get upgraded down the road.  I haven't picked a streamer yet. 

Cables - will be buying these. I have a pair of TaraLabs speaker cables, but willing to upgrade. Would prefer to run XLR between preamp and amp. 

Power conditioner - need one. 

Guessing you'll ask what my budget is. I don't really have one, but am willing to dump $75k+/-. 

I've joined Audiogon and am posting here because I've gotten lost reading reviews, and am ready to invest in a great system.  I listen to hard rock, rock, jazz and a lot of electronic.  45 years old, and I have a dedicated listening room that I just finished renovating. Here's the room:  https://imgur.com/gallery/Upznc5D

Thanks for the input.
Jered

Nice room Jered and exciting times for you picking a system.  If it was me I would decide on speakers/amps first and work your way up.   Once that combo is picked for synergy there are tons of great preamps to choose from and do not have to be the same brand.

in my experience preamps have the most effect on the sound, keeping in mind of course that every link in a system is crucial.  

@jeredh 

$75k for just the power amp or for everything?