Behringer

Behringer 000-B3S FBQ3102HD 31-Band Stereo EQ

4.4 (234 reviews)

Shape and refine your live or studio sound with the Behringer FBQ3102HD dual 31-band graphic EQ and built-in feedback detection.

$189.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Behringer FBQ3102HD is a dual-channel, 31-band graphic equalizer built for both live sound reinforcement and studio signal processing. Each channel provides 31 frequency bands with individual sliders, giving you precise control to shape the tonal character of your audio signal. The standout feature is the FBQ Feedback Detection System, which uses LED indicators on each slider to visually highlight frequencies that are feeding back — an invaluable tool during live performances where quick identification and suppression of feedback can save a show.

Beyond the core EQ functionality, each channel includes sweepable high-cut and low-cut filters that let you set custom cutoff points to eliminate unwanted noise such as stage rumble, HVAC hum, or high-frequency hiss before it reaches the equalization stage. The dedicated mono subwoofer output with adjustable crossover frequency is a practical addition for live rigs, allowing you to send bass content to a subwoofer directly from the EQ without requiring a separate crossover processor. Housed in a standard 19-inch rack format and weighing just under 6 pounds, the FBQ3102HD fits easily into existing rack setups. The analog signal path keeps latency at zero, and the USB 2.0 hardware interface provides additional connectivity options.

Key Features

Additional Sweepable High And Low-Cut Filters For Each Channel Remove Unwanted Frequencies E G Floor Rumble Hiss Etc

Dedicated Mono Subwoofer Output With Adjustable Crossover Frequency

Revolutionary Fbq Feedback Detection System Instantly Reveals Critical Frequencies And Can Also Be Used As Audio Analyzer

Provides a smoother finish and longer paper life

Specifications

Number of Bands
31 per channel (Stereo)
Channels
2 (Dual/Stereo)
Signal Format
Analog
Special Features
FBQ Feedback Detection, Sweepable High/Low-Cut Filters, Mono Subwoofer Output with Adjustable Crossover
Hardware Interface
USB 2.0
Power Source
Corded Electric, 9V DC
Dimensions
19.02 x 5.91 x 3.5 inches
Weight
5.96 lbs
Color
Black

Pros & Cons

👍 Pros

  • Dual-channel 31-band design provides precise frequency control for stereo or two independent mixes
  • FBQ Feedback Detection visually identifies problem frequencies in real time for fast correction
  • Sweepable high and low-cut filters on each channel remove rumble and hiss before the EQ stage
  • Dedicated mono subwoofer output with adjustable crossover eliminates the need for a separate crossover unit

👎 Cons

  • Behringer build quality uses lightweight materials that may not withstand heavy touring abuse
  • 5.96 lb rack unit requires dedicated rack space — not suitable for minimal or portable setups
  • Analog signal path means any noise introduced by the unit itself cannot be digitally corrected
  • No digital connectivity or recall — all settings must be manually repositioned for each use

Frequently Asked Questions

The FBQ system uses LED indicators on each frequency slider to visually identify which frequencies are feeding back in real time. This lets you quickly locate and cut problem frequencies during a live performance without guesswork.
Yes. The FBQ3102HD is designed for both applications, with precise 31-band control per channel suitable for tuning PA systems, monitor mixes, and studio signal chains.
These filters let you set a custom cutoff point to remove unwanted low-frequency rumble (such as stage vibration or HVAC noise) and high-frequency hiss from each channel, keeping your signal clean before it reaches the EQ bands.
Yes. It has a dedicated mono subwoofer output with an adjustable crossover frequency, allowing you to route low-frequency content to a sub without needing a separate crossover unit.