The TSD-GPN1200 sound masking generator is a great solution for basic 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 any amplifier input requirements. Additionally, a 4W, output is provided to power up to six masking loudspeakers tapped at .5W each. A variable hi-cut filter with operating range between 1kHz and8kHz at a slope of 6dB per octave supports equalization requirements for 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 amplifier with spectrum control provided by the hi-cut filter.