The Pre3 had that elusive property of the straight wire with gain IMO, absolute neutrality. The class D amp that worked best with it for me was the Bel Canto Ref500S. I had the stereo version, not the mono blocs. I also had a pair of mono blocs which used the same modules your Red Dragon amps use but the Bel Canto bested them in my system.
Also tried using my Resolution Audio cdp without the Pre3. The RA has a very good analog volume control but I preferred the sound with the Pre3 in place.
Also tried using my Resolution Audio cdp without the Pre3. The RA has a very good analog volume control but I preferred the sound with the Pre3 in place.