Hi Graham,

Ideally, you do need Roon to stream Tidal to Meridian endpoints...

You can always take a feed from a PC and connect it to a digital or analog input on a processor or you could invest in other streamers.

I have Roon running on an Intel NUC and my endpoints are on my network, so can be accessed by Roon.

Remember, Roon is so much more than just an interface to Tidal - it can store your library and if you let it use some of its intelligence, it can take you on some interesting musical journeys!
And it supports many other endpoints...

Cheers,

Steve