Ideal in applications where consistent audio level is needed from professional sources with varying output, such as multiple CD changers, satellite receivers or paging sources. It maintains a consistent +4dBu output for input signal variations as great as 25dB. Because the mid and high band audio frequencies are controlled separately, the level pumping effect, often associated with automatic gain and compression, is minimized. The AGC and compression attack release times adjust according to the program material to further reduce any audible effects of the module. Additionally, when audio levels fall, and remain below a level appropriate to that source, the module stops increasing the gain. As audio levels fade out, the module tracks the level for a natural sound. These features combine to produce nearly inaudible adjustment yet consistent levels without the listener fatigue associated heavily compressed music dynamics. Input and outputs are line level (+4dBu), 10Kohm balanced, and may be wired unbalanced. All connections are screw terminal. Requires 24VDC, 80mA, ground referenced.