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Behringer FBQ1502HD | High Definition 15 Band Stereo Graphic Equalizer


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Studio and Live Equalizer

Professional audio engineers have known for decades that a good EQ makes all the difference in how a performance is perceived. Although multi-band graphic equalizers have been around for a long time, they have changed very little… until now! The ULTRAGRAPH PRO FBQ1502HD takes the graphic equalizer into the realm of high-definiton audio, providing robust features and our proprietary FBQ Feedback Detection System – at a price that makes them a must-have for anyone who records or operates a live sound system.

Imagine the audio frequency range as a very wide highway with lots of lanes. Each of these lanes represents a specific frequency band. The lanes on the left side contain there ally low frequency content, mainly bass, bass vocals, and the kick and tom drums. The middle lanes make up the fundamental zone of most musical instruments and the male and female vocals. The right-hand lanes have all the high- frequency stuff, such as snare drums, cymbals, higher pitched percussion instruments and the content that adds sizzle to the mix.

For more than 20 years, BEHRINGER has designed and manufactured some of the most successful FBQ Feedback Elimination processors. Now you can own and enjoy the benefits of this technology, as we have integrated the revolutionary FBQ Feedback Detection System into this product, so your sound system is completely feedback-free, allowing you to focus on your performance. Utilizing an ultra-fast feedback detection system, this ingenious circuitry helps you recognize and tame feedback frequencies immediately. When feedback is sensed in a specific frequency range, the LED on the associated EQ fader illuminates, showing you at a glance which fader to lower to overcome the feedback. That simple!

The high-definition FBQ1502HD provides superb, ultra-low noise performance thanks to top-notch German engineering, and the use of highest-quality components. Industry-leading 4580 dual operational amplifiers are employed throughout for the utmost signal integrity across the entire audio spectrum. With 15-bands of smooth and precise equalization per channel, the stereo FBQ1502HD adds the finishing professional touch to your recordings and live shows.

The low-frequency sound range requires special attention. That’s why the FBQ1502HD features an ultra-effective Low-Cut filter on each channel, to help remove non-essential bass content, such as floor rumble, room resonance and electrical hum, etc., which really uses up your power amp’s headroom. This added high-precision control gives the FBQ1502HD the power to accurately fine-tune your system’s overall sound, creating crystal clear and dynamic output – with incredibly tight and punchy bottom-end!

Key Features

  • Professional 15-band stereo graphic equalizer for live and studio applications
  • Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
  • Ultra-low noise 4580 operational amplifiers for highest signal integrity
  • Dedicated mono subwoofer output with adjustable crossover frequency
  • Additional low-cut filter removes unwanted frequencies, e.g. floor rumble
  • Highly accurate 4-segment LED output metering and input gain controls for easy level setting
  • Servo-balanced inputs and outputs with 1/4 inch TRS and gold-plated XLR connectors
  • Planet Earth switching power supply for maximum flexibility (100
  • – 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
  • 3-Year Warranty Program
  • Conceived and designed by BEHRINGER Germany

Technical Specifications

Audio Inputs
Inputs: RF-filtered, servo-balanced XLR and 1/4 inch TRS connectors
Impedance: 40 k ohm balanced and unbalanced
Maximum input level: +21 dBu balanced and unbalanced
CMRR: typ. 55 dB, >40 dB @ 1 kHz
Audio Outputs
Outputs: Servo-balanced XLR and 1/4 inch TRS connectors
Subwoofer out: balanced XLR connector
Crossover frequency: variable, 30 – 200 Hz
Frequency response: 10 Hz to 30 kHz, +/- 3 dB
S/N Ratio: 22 Hz to 22 kHz >94dB @ +4 dBu
Distortion (THD): Typ. 0.008% @ +4 dBu, 1 kHz, Gain 1
Crosstalk: With EQ in Typ. -90 dB @ 1kHz
Roll-Off Filter Section
Type: 12 dB/oct., Butterworth
Input: +/-15 dB, variable
Lowcut: cutoff @ 25 Hz, switchable
Graphic Equalizer
Type: analog 15 band equalizer
Frequency range: 25 Hz to 16 kHz in 15 2/3-octave bands (ISO frequencies)
Bandwidth: 2/3 octave
Control range: +/-6 dB or +/-12 dB (switchable)
Function Switches
FBQ: activates the FBQ Feedback Detection System
Audio In/Out: switch to bypass the equalizer functions
Range: shifts the maximum cut/boost range for all 15 bands
Low Cut: activates the high pass filter
Input / Output level: 4 segment LED display: -20/0/+6 dB / CLIP (output only)
Power Supply / Voltage (Fuses)
Main Voltage: 100-240V~, 50/60 Hz
Fuse: T 1.0 A H 250 V
Power consumption: 18 W
Mains connection: standard IEC receptacle
Dimensions / Weight
Dimensions (HxWxD): 1.7 x 19 x 8.5 inches
Weight: 3.7 lbs


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