Hi there, I'm considering getting a kit of in-ears and was wondering what are the options when it comes to hook them up live. From what I can see, when you buy the kit, all you get is the plugs, some length of wire and a case. Where does the belt pack come from? Is it provided by the show's production or do you have to by this on top? How much control over your sound can you have? Are you completely at the mercy of how the guy at the board mixes everything? What if I don't like the highs he pushes in my bass sound and want it fattened up? Will this clash with how he eq's the bass sound for the room? Or can I set up a mixer between the board and the receiver so I can eq my sound myself? Thanks!