So, do I wire the connectors 1/4" Tip to XLR 2 and 1/4" Ring to XLR 3 on one input or wire 1/4" stereo to 2 separate un-balaced XLR's and use two inputs ? I have enough inputs.
I just don't know if the Shure M267 Mixer will be able to take the sound in on one input.
If you connect unbalanced left and right inputs to a single balanced XLR input then the channels will be out-of-phase. Then mono signals (usually vocals) will be cancelled.
Use an input of the mixer for each stereo channel. Pin 2 for the signal and pin 3 for the input's ground.
Are you trying to convert a balanced output to an unbalanced output? If so, the proper way to do that is via an isolation transformer with a center tapped primary or use an op amp circuit with differential inputs. Use a dual polarity power supply to power the op amp so you can DC couple it for greatest pass bandwidth.
If you connect unbalanced left and right inputs to a single balanced XLR input then the channels will be out-of-phase. Then mono signals (usually vocals) will be cancelled.
Use an input of the mixer for each stereo channel. Pin 2 for the signal and pin 3 for the input's ground.