DBX 231/231sub 2-Series Graphic EQ

Dual 31-Band Channels: Symmetrical top and bottom rows containing physical 20mm sliders mapped across standard ISO frequencies from 20 Hz up to 20 kHz. Selectable Gain Range: Includes dedicated front-panel toggle buttons to switch the slider response range between ±6 dB (for surgical adjustments) and ±12 dB (for aggressive tonal shaping). Gain Trim Controls: Independent rotary level knobs control the incoming preamp gain structure before the signal passes through the EQ filters. Visual Peak Monitoring: Simple 4-segment LED ladder arrays provide visual data on clipping, signal levels, and operational headroom. EQ Bypass Toggles: Physical switches allow you to instantly route audio around the slider matrix to hear a clean comparison of the dry audio versus the equalized audio.