Behringer FBQ3102 ULTRAGRAPH PRO 31-Band Stereo Equalizer

The Behringer ULTRAGRAPH PRO FBQ3102 is a dual-channel, 31-band stereo graphic equalizer built for both live sound reinforcement and studio applications. Each channel provides 31 constant-Q band faders spaced at standard one-third-octave intervals, giving you precise control over the full 20 Hz to 20 kHz frequency range. What sets this unit apart at its price point is the FBQ Feedback Detection System, which illuminates LEDs on the corresponding fader slots when feedback-prone frequencies are detected. This transforms the traditionally slow process of ringing out a PA system into a quick visual exercise, making it especially valuable for live engineers working under time pressure.

Beyond the graphic bands, each channel includes sweepable high cut and low cut filters for removing unwanted content like floor rumble or tape hiss that falls outside the bands you want to shape. The dedicated mono subwoofer output with adjustable crossover frequency adds further flexibility, letting you route a filtered low-end signal directly to a sub amplifier without additional outboard processing. Connectivity covers both 1/4-inch TRS and gold-plated XLR on servo-balanced inputs and outputs, ensuring clean signal transfer in professional environments. Whether you are tuning a room for a live event, refining monitor mixes on stage, or shaping tone in a recording studio, the FBQ3102 provides comprehensive equalization tools in a standard rack-mountable format.