5.1.2 Dolby Atmos surround system for movies yet very musical. It does the job in my space (and for my ears) :-) The SONY DN1080 4K AVR, SONY X800 BD/CD/SACD, Denon CD/SACD, Cambridge Azur CD player. For me it's mostly SACD, Blu-ray, DVD-A audio multichannel stuff. Been getting into quad lately. I love vinyl but it's hard to beat Billy Cobham's Spectrum in quad SACD. Check out my ever growing collection of surround media over at HRAudio.net: http://www.hraudio.net/library.php?user=13467