Audio Aero Capitole 24/192 vs the MKII version cdp

Anyone know the difference between the original Capitole and the more recent MKII version?Considering an upgrade via the used marketplace and can not find any specifics as to the difference on thier web site and also havn't seen any comments as to how differently the 2 sound.
Understand that there is also a MKIII version now. Thanks in advance!Ted