The thing is some manufacturers wire the pins differently on XLR connectors so if your equipment is expecting "ground" and it gets "hot" then there could be a problem. I think this is rare, however. I'd check with Krell to be sure.
Balanced connection
Is it safe to connect the Sony XA7ES to a Krell 300i integrated amp through the balanced connections ? I read in Stereophile's review of the Sony SCD-1 that the reviewer had to short one of the connections of some sort to safely connect the balanced cable. Can anyone shed some light on this topic ? If so, how does the connection work ? Thanks.