RU-EQ3 Three Band Equalizer with Knobs

The RUEQ3 features a balanced bridging input, which may be connected unbalanced if desired. The output driver is 150 balanced, and is intended to drive unbalanced or balanced lines of 150 or higher impedance. Frontpanel knobs provide active equalization, each controlling a separate audio band. These bands were carefully selected to yield a module that works effectively in a wide variety of systems. Each bands center frequency can be either boosted or attenuated by at least 12 dB. The Q of the low and high band equalizers was selected so that those controls can be functionally considered as a total bass band or treble band control. The RUEQ3 adds a third control. This midrange control is optimized to voice band adjustment, with the overlap tailored to provide smooth operation for wideband music applications. The RUEQ3's OVERLOAD indicator flashes if either the input or output stage clips.