
Behringer
Behringer FBQ152HD Ultragraph Pro 15-Band Graphic EQ FBQ
★★★★★
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
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
What does the FBQ Feedback Detection system do?
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.
Does this EQ have a dedicated subwoofer output?
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.
What is the low-cut filter used for?
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.
Is this a stereo or mono equalizer?
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.
What type of connectors does this unit use?
It features both XLR and 1/4-inch TRS connections for professional compatibility with mixers, amplifiers, and other pro audio gear.