The dbx 2231 Dual 31-Band Graphic Equalizer gives you 2 channels with 31 bands, each 1/3 octave to achieve the most precise tone control you can get. The dbx 2231 equalizer combines a superb EQ circuit, a powerful limiter, and revolutionary Type III noise reduction that increases S/N ratio by 20dB. The PeakPlus limiter's threshold ranges from 0dBu to +20dBu and can transparently tame the wildest hits or subtlest nuances of any signal. A 4-segment LED bar graph for both gain reduction and output level offers the most comprehensive visual feedback available. XLR, barrier strip, and 1/4" connectors; 45mm nylon sliders; and 12dB input gain stage provide pro flexibility and performance. dbx also includes status LEDs for all settings on the front panel of the 2231 Dual Graphic Equalizer.