Behringer

Behringer FBQ152HD Ultragraph Pro 15-Band Graphic EQ FBQ

4.6 (556 reviews)

Tame feedback and sculpt your mix with 15 bands of precise stereo EQ and built-in frequency detection for live and installed sound.

$137.52*
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*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.

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Overview

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.

Key Features

Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer

Dedicated mono subwoofer output with adjustable crossover frequency

Additional low-cut filter removes unwanted frequencies, eg floor rumble

Equipped with FBQ feedback detection function, you can firmly understand the annoying feedback frequencies and can also be used as an analyzer

Specifications

Type
15-Band Stereo Graphic Equalizer
Channels
2 (Stereo / Dual Mono)
FBQ Feedback Detection
Yes
Subwoofer Output
Dedicated mono with adjustable crossover frequency
Low-Cut Filter
Yes
Metering
12-segment LED per channel
Form Factor
Rack-mountable

Pros & Cons

👍 Pros

  • FBQ Feedback Detection visually highlights problem frequencies on the faders for fast identification
  • Dedicated mono subwoofer output with adjustable crossover eliminates the need for a separate crossover unit
  • 15 bands per channel provide detailed tonal control across the full frequency spectrum
  • 12-segment LED metering on each channel allows quick visual monitoring of signal levels

👎 Cons

  • Plastic fader caps and chassis construction may not withstand heavy touring as well as metal-bodied EQs
  • 15-band resolution offers less surgical precision than 31-band models for complex room correction
  • Fan noise or lack of ventilation in rack-dense setups can be a concern due to the unit's compact depth
  • No digital connectivity or USB interface for integration with DAW-based system tuning

Frequently Asked Questions

It uses the LED sliders to visually indicate which frequency bands are feeding back in real time, allowing you to quickly identify and cut problem frequencies. It also doubles as a basic audio spectrum analyzer.
Yes. It includes a mono subwoofer output with an adjustable crossover frequency, so you can route low-frequency content to a sub without needing a separate crossover unit.
The low-cut filter removes unwanted low-frequency content such as stage rumble, HVAC noise, or handling vibrations before they reach your speakers or recording chain.
It is a dual-channel (stereo) 15-band graphic equalizer, allowing you to EQ left and right channels independently or use it on two separate mono signal paths.
It features both XLR and 1/4-inch TRS connections for professional compatibility with mixers, amplifiers, and other pro audio gear.