Server for Bricasti M1/3

What have you found in comparing different sources such as CDTs and servers with your Bricasti M1 or M3 or M#? I have an M3 MDx with ethernet and am interested in a turnkey server with ethernet output. While I am aware of the few companies that make them, I am really wondering how the M# has responded to other's experiments. I have only used mine with my iMac via wifi and ethernet. The ethernet is better than wifi but more distorted, flat and sterile compared to using my old Cary 303 as a transport with a simple mogami AES/EBU cable. That combo yields better tone and body to the point where the iMac is unacceptable despite the convenience.