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Product Information Document
High-De nition 31-Band
Stereo GraphicEqualizer with
FBQ Feedback Detection System
Equalizers
ULTRAGRAPHPRO
FBQ3102HD
#
Professional 31-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
ampli ers for highest signal integrity
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Dedicated mono subwoofer output
with adjustable crossover frequency
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Additional sweepable high and low-
cut  lters for each channel remove
unwanted frequencies, e.g.  oor
rumble, hiss etc.
#
Highly accurate 12-segment LED
input/output metering and input
gain controls for easy level setting
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Relay-controlled hard-bypass with
an auto-bypass function during
power failure (fail-safe relay)
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Servo-balanced inputs and
outputswith ¼ " TRS and gold-plated
XLR connectors
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“Planet Earth” switching power
supply for maximum  exibility
(100 - 240 V~), noise-free audio,
superior transient response plus
low power consumption for
energysaving
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3-Year Warranty Program*
#
Conceived and designed by
BEHRINGER Germany
*Warranty details can be found at music-group.com.
Professional audio engineers have
known for decades that a good EQ
makes all the di erence 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 FBQ3102HD
takes the graphic equalizer into
the realm of high-de niton 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.
How Does Equalization Work?
Imagine the audio frequency range as a very
wide highway with lots of “lanes”. Each of these
lanes represents a speci c frequency band.
• The lanes on the left side contain the really 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 stu , such as snare drums, cymbals,
higher pitched percussion instruments and the
content that adds sizzle to the mix