The Atlas Sound TSD-GPN1200 sound masking generator is perfectly suited for basic sound masking systems. The analog topology design eliminates repeating cycles commonly found in other manufactures low cost digital designs. The TSD-GPN1200 allows selection between pink or white noise sources and incorporates a variable balanced output to match input requirements of Atlas Sound equalizers and amplifiers. In addition to the line level output, a 4W, 70V output is provided to power up to six masking loudspeakers tapped at .5W each. A variable hi-cut filter with operating range between 1 kHz and 8 kHz at a slope of 6 dB per octave supports equalization requirements for most basic Sound Masking systems. Both outputs may be used simultaneously allowing large zones to be addressed with external equalization and amplification while a smaller zone is powered by the internal 70.7V amplifier with spectrum control provided by the on board hi-cut filter.