Designed for use in the most demanding live situations, the dbx 1215 Dual 15-Band Graphic Equalizer provides dual channels, 15 - 2/3-octave bands, ISO frequency centers, ±12dB input gain range, and switchable 40Hz/18dB per octave low-cut filters. Other quality features of the dbx 1215 EQ include 45mm faders; selectable ±6dB or 15dB boost/cut range; XLR, barrier strip, and 1/4" TRS connectors; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation.