I picked up an Neutrik NYS-SPP-L1 a few years ago completely clueless about how they work. Now I'm finding they're not just pass though connectors. I was hoping I could feed the inputs to my Mic Preamp to the back of the patch bay so I didn't have to go around back every time I wanted to plug a different cord in for a phantom mic. But I guess there is some risk if you're using phantom powered mics though patch bays. Neutrik says they don't recommend putting any type of phantom power or simplex power through a patch panel here. Out of curiosity, what is the root issue with doing so. I don't understand wiring principles very well?