[brucek]

So building an RCA to XLR cable won't work

Why is that?

brucek

 

[brucek]

Unless I can lift the shield on the XLRs out of the Samson box, into the BFD

If the Samson box has XLR outputs, then great. Simply connect the Samson to the BFD with XLR's, with one end of the shield lifted. Now there is no chassis loop between the Samson and BFD.

brucek

 

[brucek]

No, you want to simply lift the shield between the Samson and the BFD (one side only). This leaves the signal connections of plus and minus attached, while breaking the hum producing connection between the chassis. The safety integrity is still intact, as each chassis has a third safety prong to ground.

brucek