Thanks for all your very informative replies. I will certainly try some of the ideas you put forward. Fortunately I don’t get drop out problems with Tidal, the issues are just in sound quality: compared to the CD the music has grit, the top end is not clean, the bass less defined, the music is flatter with no depth. Hopefully with some of your suggestions I can improve this. If not I may have to invest in a better quality network bridge streamer. The DAC I have in the Vitus is very very good, so I will continue to use that, but perhaps I will need to investigate what alternatives there are in the streamers that have no DAC.