cinema pre-wired racks, pink noise generators; noise generators; audio connection boxes for cinema racks; interface connectors to cinema processors; time compensated crossovers for speaker systems; cinema booth monitors; exciter lamps, photocells and CCD scanners for use with projectors; pre-amplifiers; noise reduction, equalization and control circuits; spectral recording simulators for noise reduction and power converters for use with cinema processors; amplifiers, local test speakers, control circuits and power converters for use with cinema both monitors; AC power distributors, plug blocks, electrical conduits, electrical wire line feeds, circuit breakers, internal lights, and wiring harnesses for cinema racks; audio headsets; infrared transmitters; assistive listening transmitters and receivers; and manuals for cinema processors, booth monitors, and for the hearing impaired sold as a unit with the aforesaid goods