A parameters modification system for a contact center is provided. The calibration system includes a method for calibrating a sound system that includes a plurality of loudspeakers. Also, the present subject matter includes a lid conforming sealingly connected to the material defining the first aperture. Re-configuration of one of the devices is accompanied by complimentary re-configuration of the other device andor air distribution devices are located immediately adjacent a cover panel or facia, the cover panel of facia including a user accessible control to control operation of the air distribution devices.