The dbx 231s features two channels of 31-band 1/3-octave EQ, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm non-conductive sliders, a intuitive user interface and output level metering. From its extended 10Hz to 50kHz frequency response and 112dB dynamic range to quality components and meticulous attention to detail, the 231s delivers exceptional sound and rugged reliability that ensures you'll always sound your best. PZA MORE SPECS