It would seem that the just released 808 tells you that there is a case for modding. From what I can read, it looks like they have changed the power supply for a toroidal power supply. Why not the 861 or the G series?

"818 Reference Audio Core features a power supply design built around a true toroidal transformer for minimum noise and maximum signal integrity."

The removal of all the video cards makes great sense, being as no one really uses them with the HD621. I wonder if you pulled out all the video cards and pushed all the cards you need to one side in the 861, if there is rooms for this new Meridian "true toroidal transformer".

Primary: MD600, MS200 (SpeakerLink to AES), Trinnov ST-2, Ayre V6-xe, Salk SS8 3x LRC.
Secondary: MC600 (whole house).
Zone one: 568.2, G57, MS200, Spatial Hologram M2SE.
Zone 2-6 (Awaiting assignment).