P. 15 of the instruction book for the 8300/8600 indicates none of your outputs are balanced (so not a direct match for XLR) and your MAIN and MONITOR outputs are the same for impedance. What isn’t apparent to me is if the MONITOR is a stereo mix out (1/4″) and I don’t know what the XL2 is spec’d for on it’s1/8″ input. It may be just as easy as a 1/4″ from the monitor to theXL21/8″ – but it would be mono in that case. So, to the above suggestion, I’d add… try a 1/4″ stereo to 1/8″ stereo path cord.
