BACCH is wonderful from what I heard from others. I have not heard it myself. Too hard to do. I don’t want a Mac and it seems a bit too customer. Edgar comes over and does install and super expensive. I will wait for the BACCH in a box for less than 5k. Then I will jump in. The bonus of that kind of system is any 2 ch music to feed it. Atmos or object based has to be mixed and will always be limited.
For the poster that says their tuned 2 channel system is just as good as a 5.1 has not listened to a proper system. Also atmos is min 5.1.2. Just adding a center for dialog improves movies. 2 vs multi ch for movies no contest. Playing a 2 ch song via some stupid DSP to multi ch surround. Yuch. Just have a good 2 ch setup is better.
I think the bigger point is you can have both. As long as your pre has bypass. If it does not then you will end up compromising the 2 ch system to share speakers and amps.
Comparing Quad from 70’s is not exactly even close comparison to object based music.
Streaming also has opened the door to make this generation of multi channel music to be more successful. Comparing to SACD and DVDA is unfair. Need special players and setups etc. not to mention to finding the discs. Millions upon millions have apple and Amazon and tidal. It’s there ready and waiting. The entire library of them.
this forum is not exactly know for its open mind-ness and probably not the best place for the OP to try and find others to join in the fun.