Originally Posted by Sims123
However, is 861 still going to evolve? For instance, why is MQA not part of 861? What about Atmos in a later stage?

Any ideas or reflections are highly appreciated - thank you very much.
Welcome to the forum. Regarding the above, I would say possibly for MQA, highly unlikely for the 3D audio codecs. For the latter, IMHO it will be a new version equipped with the required processing power. In light of the 271, one would predict that this is not coming anytime soon. If you do decide to go down the 861 path, as suggested above, I would go down the used path.

Main system - Sources (Kodi-HTPC, Vero 4k, FireTV, Sat) into Trinnov Altitude 32 (8-16) (+Roon), Trinnov Amplitude 8 amp & Vivid Audio (Giya G3, V1.5) and REL Stentor III speakers. Others: F80 + Raspberry Pi and other Pi systems.