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Behringer 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System

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Product Description


Equally suited to both live and studio environments, the ULTRAGRAPH-PRO FBQ6202HD from Behringer is dual-channel 31-band EQ featuring a proprietary FBQ feedback detection system, a handy tool for identifying problematic frequencies in a room, or for use as an audio analyzer.

Additional hi- and low-cut filters, sweepable in frequency, aid in mitigating unwanted hiss or rumble, 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 output—with variable output control—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.

An on-board limiter on both channels allows you to protect your system from audio overloads. Pink noise generators offer test signals to help adapt the unit to the specific frequency characteristics of various and different rooms

Notable Features
  • 31-band graphic equalizer for two-channel implementation (stereo or dual mono)
  • 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 sweepable hi- and low-cut filter on both channels
  • Ultra-low noise 4580 operational amplifiers
  • Dedicated mono subwoofer output with adjustable crossover frequency and output level control
  • 8-segment LED output metering and input gain controls
  • 4-segment LED output metering on subwoofer
  • Relay-controlled hard-bypass with an auto-bypass function during power failure (fail-safe relay)


Filter Type Graphic
Number of Channels 2x
Function Switches FBQ: Activates FBQ detection system
Audio in/out: Switch to bypass
I/O meter in/out: Switches the meter display from input to output
Range: Shifts the maximum cut/boost range for all 31 bands
Limiter: Activates limiter
Pink Noise: Activates noise generator
Subwoofer: Activates Subwoofer output
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
Indicators LED input/output levels at -24, -18, -12, -6, 0, +6, +12 dB, as well as CLIP
LED subwoofer levels at -18, -12, 0, +12 dB, as well as CLIP
Frequency Bands 31 per channel, ISO frequencies
Bandwidth 1/3 octave
Range (Boost/Cut) +/-6 dB or +/-12 dB, switchable
Frequency Response 10 Hz to 30 kHz
Frequency Range 20 Hz to 20 kHz in 1/3 octave bands
Signal to Noise Ratio >94 dB @ +4 dBu, 22 Hz to 22 kHz
Crossover Control Dedicated mono subwoofer output with adjustable crossover frequency (30 to 200 Hz)
Power Consumption 35 W
Mains Voltage 100 to 240 VAC, 50/60 Hz
Dimensions (H x W x D) 5.2 x 19.0 x 5.4" / 13.3 x 48.3 x 13.8 cm
Weight 5.1 lb / 2.3 kg
Packaging Info
Package Weight 7.2 lb
Box Dimensions (LxWxH) 20.2 x 8.9 x 7.5"

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