Hi folks, Newbie here. Feel free to send me to another post since I’m sure this has been talked about. I own a Model 12 and I’m trying to send my signal through an SPX90 and back to the Model 12 7/8 stereo inputs. I’ve connected the aux1 output to the input of the SPX90. Ive then connected the L output and R output of the SPX90 to the L and R input of channel 7/8 on my Model 12. I’m getting signal and sound, but I’m hearing the SPX90 from one side. It sounds like one of the stereo signals isn’t going through the channel. When I connect the SPX90 to channels 5 and 6, I hear both the signals from the SPX90. What’s the fix? I’m using balanced TRS cables for all the connecting.