Balanced I/Os does not mean the component is a differentially balanced design. Unless the McCormick is, I would sell it. Actually, I would sell it either way...
You can buy a new Wyred 4 Sound SX 250 for this. There's a pair of SX 500 monos on AG for $1400. I would grab them. I own the W4S MC 250/500, 4 channel amp for biamping. They are balanced designs but have RCA inputs, too. So do what you need for now, but move toward a differentially balanced system.
I am using the Raysonic 168 with built-in variable tube outs direct to my active XO then to my amp. The tube output compared to a $3K balanced pre I was using, so I sold it.
You can buy a new Wyred 4 Sound SX 250 for this. There's a pair of SX 500 monos on AG for $1400. I would grab them. I own the W4S MC 250/500, 4 channel amp for biamping. They are balanced designs but have RCA inputs, too. So do what you need for now, but move toward a differentially balanced system.
I am using the Raysonic 168 with built-in variable tube outs direct to my active XO then to my amp. The tube output compared to a $3K balanced pre I was using, so I sold it.