OK to hook up both RCA and XLR on amp?

I purchased (haven't received yet) the Odyssey Audio Stratos amp which has RCA and XLR inputs. Can I hook up both inputs (although not using it at the same time, of course)? I plan to connect my receiver's preout to the RCA input (part of the HT setup); and later purcase a separate preamp and connects it to the XLR input of the amp (for better music listening). Would this setup causes any potential problem? Is there anything I need to be careful about so that not to damage any component? I'm very new at this and appreciate all your comment. Thanks.