Noob here
I've lurked & taken hints to good surround recordings over the years.
My rig is Pro High End computer driven 5.1 PCM only from a thunderbolt 2 DAS since 2012.
Sounds like being there with recordings like 2L, and great with DSOTM etc.
I had hoped and thought surround music would take off more.
And I was preparing to expand to 5.1.4 but stopped as not much was released.
5 x Genelec 8260 + 7271sub.
All AES/EBU from a Weiss AFI1 DDC to the monitors and Genelec's awesome GLM room correction directly in the monitors.
Mostly hung at
Audiophile Style (Computer Audiophile) when I was more active.
Big proponent of digital surround music and careful DSP.