After 18 hours warm-up we listened to both Krell SACD units.
The same cables were used for both players and speakers were LAT1000.
Immediately after swapping the players we got the idea that the mk3 was more detailed and seemed to sound better defined, but also louder. However, checking levels with track 18 of the Sheffield Test and Demonstration disk has shown that levels were similar within 0.1 dB.
Listening to the infamous Jazz at the Pawnshop SACD, track one, confirmed the differences. Ambient was better defined and image floated with a better sense of space with the SACD mk3. Bass had more punch. Something very nice was that applauses seemed to come from the individual tables, not from the whole stage.
The display can be defeated and intensity can be switched among there levels and the remote is the same as the one from the SACD mkI with a small facelift.