Here's the deal: I would like to use my RNC with my Sytek MPX-4a pres, but the Sytek has only XLR outputs whereas the RNC has only 1/4'' unbalanced inputs. Both operate at +4dBu. My 'mixer', an M-Audio Omni I/O, can take either +4 or -10 dBu, balanced or unbalanced, but has no inserts on the channels that I wish to use. It seems to me that I need a device that will simply unbalance a signal coming from an XLR or a TRS plug without changing its level. Is there a device designed for this purpose? Are there any other good ways to interface the RNC with this balanced pre?