Home Theater Receiver recommendations for B&W 803S?


Hi!  I'm on the hunt for a new receiver, since I recently upgraded my main speakers, and I'd like to have one that also passes 4K signal.  

My current setup:

Denon AVR-4308CI
Left & Right: B&W 803S
Center: B&W HTM2
Surrounds B&W 301
Sub: Energy 8"

I recently upgraded to the 803S's on the left/right; replacing my original Nautilus 805's.  Now I need to upgrade the rest of the system!

I think the first step is the receiver, especially since I'd like to be able to pass 4K to my projector.   Then will likely upgrade the sub (Am considering the Monoprice Monolith, 10" or 12"...). And I'm also on the hunt for a HTM3S, to better match the 803S's. 

I'd love to know what Receiver recommendations folks have that will pair nicely with these speakers.  Ideally under ~$2K  - and I really don't care much about other bells & whistles (multi zone, bluetooth, wifi, whatever). I'd rather the money go into the best possible D/A, amplifiers, etc... and leave other tech gadgetry to other boxes.

Appreciate any/all input! Thanks!  :)






awilder
Welcome awilder!  Set your budget and do your homework.  Make a list of must have features, then narrow it down to price vs performance.  If you can listen to a couple of brands through your speakers, then do so with familiar material.  Power is always important to avoid clipping or damage.  
B&w often recommends Rotel and the new integrated is a killer. I’d call b&w u.s. and ask. 
Caphill,
Had a question on streaming via airplay.  I think you had mentioned once not to steam music via airplay.
So Although streaming music (Tidal) via AirPlay is lossless, connecting my apple device to my Classé Sigma via the USB connection will give me greater dynamics and better overall sound quality?
Thanks everyone - I appreciate the thoughtful replies as I find myself on the edge of a very large rabbit hole...  :)

So if I'm understanding @caphill and @auxinput correctly, you're suggesting adding a preamp (possibly the Marantz) and then keep the Denon to use as a straight amp? (and then connect everything up with RCA cables?  Since the Denon doesn't have balanced/XLR inputs?)

Will also take a look at Yamaha and Rotel...