Actually that is out of date: stereo send and return are possible since an update last year I think. I have run FX in a stereo loop from a KPA.The toaster has a single 1/4" send and two returns, one being 1/4", the other being XLR. If one of the returns is balanced, then it's the same but requires an XLR-1/4" converter for most uses. If neither return is balanced...well, I guess the question is whether noise effects profiling process or not as to whether it functions differently.
Probably if you hold down the button, it goes to profiler mode. That’s why that line is drawn out from that button to the word “Profiler.”But there’s two buttons. One labeled Browser and one Perform.
Maybe if you hit both. Still don’t see an XLR input. I hope it does.