Recommendations for HiFi Listening Room

@brewerslaw

Quboz and Tidal are the top hi-rez streaming services.

Check Roon software interface.  Try to demo at a high-end audio dealership as it's  often available.  View an online promotional video.

Seek information and guidance from multiple audio dealers, separating truth from marketing bs including pandering fear of missing out on a limited timed deal (real meaningful bargains excluded).

Google: TAS 50 Greatest Bargains in High-End Audio to give you a good price/performance baseline to start your research.   

The very best bang for buck is to buy used.  This is what I did to maximize price/performance.  However, since this is a one-shot-deal perhaps buying your complete audio chain from a dealership may be a better option.  It's better to have a audio chain with complimentary components and MUCH better to demo before you buy. 

I'm not in any way associated with the dealer @audiotroy , but his posts are sound and his products compete with the best at their price points.  With your 35k budget, I'm confident that @audiotroy can assemble a fantastic sounding system.  

Also, budget for some room treatment. I popular resource for info, advice, and products at reasonable prices check out "gikacoustics.com" (when I try to copy/paste a link it gets imbedded in a very large box)

Take your time. Do not rush into any of the purchases until you really understand the sound of various speakers and what matches well with them in terms of a preamplifier and amplifier. When you audition speakers try to do the auditioning in a room of similar size. You will not be able to find a room with that ceiling height but certainly the other dimensions should be close. You need to hear how the speakers can load the room. Realize that windows and a fireplace are not going to add positively to the room. Windows can have window treatments that will reduce their negative aspect, harsh reflections. The fireplace needs to be examined closely. Setting your speakers up on either side of it will have a negative effect so if this is how you thought you would be placing the speakers then maybe you need to think about how you can shield the sound from not being swallowed by the fire box and chimney. You should eliminate any stand mounted speakers from your list due to the size of your room.

@kennyc TAS 50 Greatest Bargains in High-End Audio

Hadn’t looked in ages - interesting though, that Magnepan speakers come up in 4 of 5 categories. Got to say that a pair of Magnepan DWM (woofer) panels really improved my system.

if you have symmetrical corners facing the sectional get these (below).   they will fill the room, and your whole house actually, with beautiful sound.   they're big but would be out of the way in the corners.   these guys on here are mostly old and while many have lots of experience they tend to get a narrow focus and ignore what you actually asked which is about a system for your family room.  nobody in there right mind would put gik all over the walls and ceiling of a public family room.   if your wife agreed to that id be very surprised.  moreover, if you want that id be very surprised.   

this: