ok, new to this... i recently received a behringer eurorack ubb1002 from a local pawn shop. the mixer has 10 channels - the first two have 1/4in. line in & an XLR, 3-8 have STEREO L&R 1/4in. and an XLR. question is, can i connect a regular(mono?) XLR (say from my DI out on my bass amp head or a mic) to the stereo XLR inputs? or is it just going to give me (presumably) L input?