I said I wasn't going to participate in these forums again, but here I go.
Barely any audiophiles seem to know of Prism Digital. Heavily used in the high end recording studio world and regarded as the most accurate sounding AD & DA converters out there. So enter the Prism Calia consumer model; by warm I assume you mean rich and accurate harmonic reproduction accurate to live music, while being open and clear sounding. The Prism Callia. Or it's Pro version which would have AES EBU
Another choice would be Dacs or built in Dacs from the SPL line in Germany. Also a Pro roots company. These are the AD's & DA's the high end studios are using and there's a reason for that!
Audio by di tomasso