SelecTone® Speaker amplifier is designed to produce crisp, clear tones, digital voice messages and live public address. In the model 50GC a short, folded re-entrant horn is interposed between the diaphragm and surrounding air space. This design provides optimal dBA output and very good frequency response. It has been designed, tested and approved for use in type-3R applications. When installed with the model WB weatherproof backbox, the 50GC is suitable for use outdoors. Internal gain control allows output adjustment from 64 dBA to a maximum of 88 dBA at 10 ft. SelecTone® speaker amplifiers are used individually or as part of a plant-wide emergency notification system. The model universal tone module with 32 tones or the TM33 custom tone module is plugged into a single SelecTone® speaker amplifier for stand-alone use or into a SelecTone® command unit for plant-wide signalling. For plant-wide signalling, a connector kit is installed into each SelecTone® speaker amplifier and wired to a central controller. SelecTone® command units and CommCenter® digital message centers broadcast tones, voice messages, melodies and live public address to an unlimited number of SelecTone speaker amplifiers. The compact size and attractive appearance of the Model 50GC make it ideal for use in offices, hallways, reception and plant areas where ambient noise levels are not exceedingly high and even sound dispersal is desired. Emergency signalling and paging are common applications.
