Overview

Automatic Stereo Synthesizer

The 275A reprocesses mono material into synthesized stereo to "open up" mono programs when heard on stereo or surround TV systems. The sound of the 275A is remarkably convincing, producing a pleasing sense of ambience and spaciousness while maintaining perfect mono compatibility. Placed permanently in the program line, the 275A automatically determines if the program is mono or stereo and then smoothly cross-fades from bypass to synthesized stereo output when true stereo program is absent.