The economical Atlas Sound GPN-1200B masking generator is designed for speech privacy systems and for use as a noise reference in sound systems. Output level is .3V into 600 ohms (-8dBm). Variable low pass filter shapes frequencies from 16 kHz to 250 Hz at 12dB per octave.
Compact 1RU size takes up little rack space. Rear-mounted controls prevent unauthorized tampering. Finish is black semi-gloss epoxy.