The HD231 is dual channel, 31 band, 1/3 octave graphic equalizer from ART. The unit has a rugged construction and is housed in a two-space, rack-mount chassis that is suitable for multiple commercial applications.
The HD231 is ideal for live sound systems, PA systems, permanent or fixed Installations, church systems, nightclub systems, practice PA systems, DJ sound systems, as well as home and project studios.
Dual channel 31 band 1/3 octave graphic equalizer
Constant-Q filtering
20mm center detent sliders
Selectable boost/cut range of 6dB or 12dB
Independent variable high-pass and low-pass filters
Variable input level control
Automatic Bypass Relays provided in case of power-loss to the unit
XLR, 1/4" phone and Euroblock Barrier Strip connectors
Rugged chassis design