The diagram below shows one way the audio may be wired. The AUX Outputs of the IQ-USM 810 will be used, and each room will have a corresponding output. Each Setup will have a different mix that is set according to which mic is active in combined rooms. For example, when rooms 1 and 2 are combined, either mic 1 or 2 can be active to provide flexibility in room arrangements for different functions. The contact closure located near each mic will allow the selection of a mix for the active mic.
Lets take a closer look at the mixing for the different room combinations.
The background music can be attenuated at the wall-mounted pot if desired. A mix will be established for each room combination listed above, and saved as a preset in the IQ-USM 810. Presets will be recalled by the possible combinations of contact closures. Each mix should be made taking into account the placement of the mic in relation to the speakers to avoid feedback, as well as proximity of the mic to the audience. For example, when rooms 1 and 2 are combined and mic 2 is active, the mic level can be attenuated a bit for room 2, since the speaker is closer to the audience present in that part of the room, and to avoid feedback from the room 2 speakers.