Hi Guys.
I have purchased a Katana DAC (not arrived yet) it is pre loaded with Diet pi and Roon.

I am currently ripping and streaming from a Vortexbox OS 2.4 (installed onto a Intel Atom D525 1.8 Ghz dual-core CPU) using LMS, this is connected to an AV amp via coax.
I have bought the Katana to connect to my 2 channel system and hopefully achieve much better sound quality.

The advice I need is which OS/distro would be best suited to get my music files from the Vortexbox over Ethernet to the Katana.

Any help will be much appreciated, I am new to streaming and the PI world so go a bit easy please.
Thanks