Pathos Aurium as a Pre-amp


I have Pathos Aurium headphones amp and I'm using it in my secondary system as a pre-amp: I am feeding a pair of powered monitors frmo its XLR analog outputs.
Now I want to add a little powered sumwoofer to this setup. 
My question is: can I feed thte sub from the second set of analog outputs on Pathos? Will it drive two analog outputs at the same time?

Thank you!