DBX 231 S. 2-channel graphic equalizer with 31 rack-mountable Eq bands. Technical features include 31 1/3-octave equalization bands with ± 12 dB of input gain, switchable range ± 6 dB or ± 12 dB of boost/cut, 20 mm non-conductive sliders, Output level meter, bypass switch on the front panel, 4-segment LED for output monitoring. It has inputs and outputs via XLR and TRS
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