I'm wondering if there is an effective way to take use amp channel switching over long distances. I play in a lot of worship settings, some at larger venues that use in-ear monitoring and put the amps in a back room. Is there a convenient extension phono cable for an amp channel switcher? One of the venues that I play in regularly, though, puts the amps in a back room about 100 feet away and across a hallway with foot traffic. This seems impossible to me, but is there any way to do a simple wireless switching system? Or some other system I'm not thinking of? Specifically, the scenario I'm thinking of is I'd love to buy one of the new Vox AC50s with a 2nd higher gain channel, but I feel it would be waste of time if I couldn't utilize the 2nd channel in half of the places I play... Any ideas?