Wadia owners- both sets of outputs at same time?

Wondering if any users of 860/861 can confirm that both balanced and unbalanced outputs are operable at the same time. I plan to drive the amp via the XLR's and a sub via the unbalanced - any issue you can forsee? Thanks.
Yes, it works. I run my 861SE the way as you described. Just remember that XLR out is 6 db lounder than RCA.
I have an 850 and have used both the XLR and RCA's at the same time.