Linn Products said "If the Bricasti M21 DAC is an Open home renderer then you will be able to use Kazoo to control it”.
The Bricasti M21 DA is DLNA and UPnP computable so any software that accepts those protocols will work.
FYI:
OpenHome (aka UPnP with Linn extensions) and standard UPnP/DLNA are actually closely related (but incompatible) streaming technologies rather than 'formats'. The main difference is that with OpenHome it's the streamer (aka renderer) that owns the current playlist; whereas with standard UPnP/DLNA it's the controller (aka control point) that owns the current playlist.
This gives the OpenHome renderer the advantage of being autonomous with regards to playing the tracks in the playlist once playback has started. It means the OpenHome renderer can sort out gapless playback for itself, allow multiple OpenHome control points on the network to interact with it without any side effects and even continue to play the entire playlist with all associated OpenHome control points switched off.
Contrast that with the standard UPnP/DLNA renderer which is completely reliant on the standard UPnP/DLNA control point for playback. So, the UPnP/DLNA renderer requires the standard UPnP/DLNA control point to tell it what the next track is and where to fetch it from every time the next track needs to be played. This forces gapless playback support to be an interaction between both control point & renderer and restricts the number control points that can interact with the renderer at any one time to one (otherwise you can get strange playback side effects with the various control points competing with each other to gain control over the renderer).
MConnect works and I am currently using it. I was curious to see what other connection options were out there. Please note my main source is the Aurender N10 Server. Sometimes I like to experiment with other technologies especially especially since the M21 supports an Ethernet connection. Based on my research, I will continue to use MConnect. Thanks again for your help. Take care.