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Behringer 15-Band Stereo Graphic Equalizer with FBQ Feedback Detection System

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Equally suited to both live and studio environments, the ULTRAGRAPH-PRO FBQ1502HD from Behringer is dual-channel 15-band EQ featuring the proprietary FBQ feedback detection system, a handy tool for identifying problematic frequencies in a room, or for use as an audio analyzer.

Additional low-cut filters aid in mitigating unwanted frequencies, while ultra low-noise 4580 operational amplifiers seek to bolster the sonic performance of this unit. Utilizing an on-board crossover frequency selector, a dedicated mono XLR out helps separate frequencies that are more suitable for the subwoofer than the mains. The unit also provides both 1/4" TRS and XLR connection points.

  • 15-band graphic equalizer for two-channel (stereo) implementation
  • FBQ feedback detection system for identifying problematic frequencies in a live context, or for use as an audio analyzer
  • Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
  • Additional low-cut filter on both channels
  • Ultra low-noise 4580 operational amplifiers
  • Dedicated mono subwoofer output with adjustable crossover frequency
  • 4-segment LED output metering and input gain controls


Filter Type Graphic
Number of Channels 2x
Inputs 2x XLR
2x 1/4" TRS phone
Outputs 2x XLR
1x XLR for subwoofer
2x 1/4" TRS phone
THD & Noise 0.008%
Maximum Input Level +21 dBu balanced and unbalanced
Frequency Bands Fifteen per channel, ISO frequencies
Bandwidth 2/3 octave
Range (Boost/Cut) +/-6 dB or +/-12 dB, switchable
Maximum Output Level Not specified by manufacturer
Frequency Response 25 Hz to 16 kHz, +/- 3 dB
Dynamic Range Not specified by manufacturer
Noise >94 dB @ +4 dBu, 22 Hz to 22 kHz
Dimensions (H x W x D) 1.7 x 19.0 x 8.5" (44 x 483 x 215 mm)
Weight 3.7 lb (1.7 kg)
Specialties Dedicated mono subwoofer output with adjustable crossover frequency
Packaging Info
Package Weight 5.45 lb
Box Dimensions (LxWxH) 20.9 x 12.1 x 4.3"
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