Aviom units can be a big help in cutting down stage noise and increasing the quality of your mix (live and in the studio). But labeling the aviom channels can be a pain. You can personally pencil in each channel if you really wanted to. The other option is to print something out and affix it to the personal mixing units. Our favorite part is the colored distinctions between channels. Here's a template (for those of you on Mac using Numbers). Each printer is a bit different so you may need to adjust it some. Hope it helps! Happy mixing.