I am using Roon with a Roon Core. I had a 2TB SSHD from updating my PC and installed that in the Core. I use Roon with a Cayin HA-1A MK2 tube headphone amp and Focal Stellia headphones. Sometmes with an Android phone and RoonARC. In other rooms a Yamana MusicCast system. In my main listening room an ARCAM 21 home theater receiver driving Focal Aria 948 speakers. I subscribe to Tidal and Qbuz and listen mostly to classical chamber music and jazz from the Bebop and Hard Bop eras… And some classic rock and Bob Dylan and Joan Baez…