Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output. Dual channel (31 bands per channel). Variable stage low and high cut filters.
1/3 octave filter sets (ISO centers). 20 Hz to 20 kHz effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range. Output level LEDs (-10 to +17 dB).
Bypass switch with status LED. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel.