I use a powerful MacMini (dedicated use for Roon only) as my Roon Core server.
My main source for playing music from Roon is the Altair G2.1.
My main setup:
Auralic Altair G2.1 preamp/dac/streamer.
Leema Hydra II Anniversary power amp
Marten Parker Duo speakers
REL T7X sub
Clearaudio Concept/ with AudioTechnica AT33PTG/II- turntable
Rega MC riaa
Oppo 95 Blue-ray /CD drive
Black Magic Revelation IC mkII xlr , Tellurium Q Ultra Black II , Whistler Audio cables