Behringer FBQ152HD Ultragraph Pro 15-Band Graphic EQ FBQ

The Behringer Ultragraph Pro FBQ1502HD is a dual-channel, 15-band stereo graphic equalizer built for live sound reinforcement, installed audio systems, and studio monitoring applications. Each channel provides 15 frequency bands with precise boost and cut control, allowing engineers to shape the tonal response of a PA system, monitor wedge, or recording chain. The standout feature is Behringer's FBQ Feedback Detection system, which illuminates the LED indicators on each fader slider to show which frequencies are actively feeding back. This visual guidance lets sound operators identify and suppress feedback almost instantly during live performances, significantly reducing the time spent ringing out a room.

Beyond feedback control, the FBQ1502HD includes a dedicated mono subwoofer output with an adjustable crossover frequency, making it straightforward to integrate a subwoofer into a system without requiring a separate electronic crossover. An additional low-cut filter is provided to remove unwanted rumble from stage vibrations, foot traffic, or HVAC systems — a common issue in live and installed environments. The 12-segment LED meters on each channel give a clear visual indication of signal levels, helping to maintain proper gain structure. Housed in a standard rack-mount enclosure, the unit fits into existing rig setups alongside mixers and amplifiers, with both XLR and 1/4-inch TRS connectivity for flexible integration.