Thank you DanDan
Yes, dodgy room

. I was asking about connecting the MIC with/without pre amp becaue the ERGO MIC during calibration goes into a dedicated calibration input connection which I assume does not take the signal into the MAC, ERGO calibration is inside the ERGO Box... uses MAC just for the GUI.
I'll try FM3 demo, see if I can get it all to work.
Thanks