I think the suspicion is that the network cabling could be producing differences. From memory Meridian found that network cabling made a difference (in the 808.3) and now the ID41 is shielded.

I think I can hear a difference between an MS600 hard wired to router (long cable) and having it connected via a bridge (Airport Express). If Ian tells me I can't, my ears will probably subsequently agree with him... There's too much psychology between expectations and what I "hear". eeek