Ok so it might sound stupid, but I think I don't know how to use my GK.
The thing is that I have a LMIII, and I use it all the time cause it is easy to carry around.
I know on the LMIII you adjust the vol so it doesn't clip, and then the master.
I've been using my GK for years in my Basement, so today I was checking and I came up with this settings (see picture)
My question is, after it is all set up, what becomes the vol, the volume know or the woofer? By the way I'll be using an LDS fearfull type and I have a show tomorrow at a banquet hall for about 500 ppl.