The ME 30B is a single channel, 30 band, 1/3 octave graphic equalizer, featuring constant Q circuitry and housed in a single space 19" rackmount unit. The sliders are 20mm center detented, with a boost/cut range of either +/-6dB or +/-12dB. The unit provides balanced input and output connections, a clip level indicator, bypass switch and an internal power supply.
The individual filters of the ME 30B are a constant-Q (constant bandwidth) design. This means the bandwidth of each individual filter is guaranteed to be narrow enough to prevent unwarranted interaction between filters, yet wide enough to produce exactly the type of correction curve demanded by even the most unusual acoustic surroundings. The rear of the unit provides both XLR and 1/4" TRS connectors for fully active balanced and unbalanced input and output.