@phusis Thank you. I have found Roon offers less resolution than upnp/dlna applications, all of which sound the same on my system. I have wondered if Grimm products escaped this issue.
Relating to the OP and FWIW I use a sonic transporter i9 in to a Bricasti M3 renderer. I haven’t done comparisons but have a hard time imagining the ~$1000 renderer option isn’t a great value for the under $5k crowd.

