Orban Parametric EQ 622B, Vintage Equalizer

Condition: Tested and works, all lights, filter bands, on/off switches and audio I/O. The pots are a little sticky/dusty but nothing unexpected for older pots. Description: The Orban 622 is a true Parametric Equalizer of high professional quality, providing outstanding versatility and control. The four sections in each channel each use "constant-Q" circuitry. This results in an equalizer of outstanding musicality, and permits any section to be used as a narrowband notch filter (with typically better than 40dB rejection) to effect room tuning or to eliminate fixed-pitch interference, like hum. The sections are totally non-interacting: the total equalization (in dB) is simply the sum of the equalizations of the individual sections.