Ok. Finally got the manual and opened up the v800.
Do I lift both the XLR-ground LIFT Jumper (positioned at XLR input) and the Ground LIFT Jumper (positioned near AC power chord)?
For balanced output level:
The diagram seems to be backwards. My default factor setting was set 1,2,3,4,to off position. Instead of the all being on to +15dBu.
What would be the lowest setting? Position 1 on and 2,3,4 off?