I have now used the settings recommended for Roon sound quality and compared the result with aBpoweramp Asset UPnP and jPlay for iOS or Linn App. Unfortunately, I still prefer the sound using Asset UPnP with either of the other control points. With Asset UPnP, I felt the sound was more lively and musical than Roon. There was slightly more detail and presence. It wasn’t a massive difference, but the music was clearly more involving. It’s definitely got some of what have I been missing for the past few years, the thing that made me turn back to vinyl.
I feel a little disappointed because I don’t want to give up the Roon interface or lose gapless playback. Many thank for the information as it was a useful exercise to confirm that I am not making a mistake. We all have different tastes and use different configurations of equipment in different environment so perhaps it shouldn’t be surprising the we can come to different conclusions about sound quality.

