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By routing the signal from the mixer to the main
power amplifiers (or crossover), the overall frequency
of the mix may be altered to do a number of things.
A. Through the use of a real-time audio spectrum 

analyzer, a calibrated microphone, and a pink 
noise source, the audio system may be "TUNED" 
to make the overall audio spectrum response of 
the audio reinforcement system and the room
environment flatter in its frequency response.   

B. By turning up the audio reinforcement system to 

the feedback point, then attenuating the oscillating
frequency (1/3 octave resolution), then turning 
the system up to attenuate the 2nd oscillating
frequency, and then the 3rd, and so on, you can 

enable the entire audio system to have much

more gain before feedback.

C. Amplifiers and speakers may be protected by the

use of the LOW CUT feature of the equalizer.
Wind noise or the loud percussive sound of
dropped microphones, etc., could potentially
cause damage to the amps and/or speakers.  By
rolling off the extreme LOW frequencies with the
LOW CUT filter, a measure of protection is added
to the system without severely affecting the overall
sound quality.

D. In noisy environments, the audio signal may be

tailored for better intelligibility and penetration.
This is especially useful for public address
systems. 

E. Creative use of the equalizer allows shaping of the

signal for a more pleasing sound or for special
effects. The only limits are those of taste and
imagiation.

TYPICAL SETUP

INSTALLATION

TYPICAL SET-UP

8

NADY AUDIO graphic equalizers may be used wher-
ever modification of the frequency contour of a sound
system is needed. A graphic equalizer is a solution to
any number of sound problems or creative urges.

Sound Reinforcement Applications

Musical Instrument Applications

A. Putting an equalizer in line with a musical

instrument allows you to modify the sound of the
instrument.  You can brighten the sound, or add
body to a thin sounding instrument, or even give
the sound a totally different character.

B. An equalizer will allow you to eliminate unwanted

sounds, like a 60-cycle HUM from a badly
grounded amplifier. 

A graphic equalizer is one of the most useful tools in
the sound engineer’s bag.  NADY AUDIO equalizers
offer the features and flexibility to perform where it
counts in the studio.
A. Fix a track that doesn’t sound quite right.  Put the

equalizer in an effects send and return it to the
MIX bus.

B. Create an artificial stereo by splitting a monaural

signal and equalizing the split signals differently, 
then panning one equalized signal to the right and
the other signal to the left.  

C. Shape the sound by changing the frequency

response of the track.

D. Special effects, like a telephone sound, can be

created by cutting off the LOW end to 200Hz and 
the HIGH end to 6KHz.

E. Also when you use the equalizer with other pieces

of equipment, such as the NADY AUDIO CL-5000
Compressor Limiter with Gate, you can do real
signal processing magic.  Emphasizing the HIGH
frequencies of a signal and feeding the modified
signal to the side chain of the compressor makes
the compressor a DE-ESSER; or, emphasizing the
LOW frequencies and putting that through the side
chain, makes the compressor a "DE-THUMPER".
Also, you can reduce unwanted frequency-
dependent noise in a signal by cutting the
offending frequencies with an equalizer and letting
the noise gate of the CL-5000 "KEY" on the
modified signal, while letting the original signal
pass and gating the unwanted sounds. (See the
instruction manual for the NADY AUDIO CL-5000
for more ideas and detail on methods to utilize
your equalizer in the fullest). 

Studio Applications

Summary of Contents for GEQ 131

Page 1: ...er GEQ 231 2 Channel 31 Band Graphic Equalizer POWER 10 12 6 6 3 3 0 12 0 LEVEL 5 31 BAND GRAPHIC EQUALIZER GEQ 131LF GEQ 131LF OFF ON BYPASS CLIP 6 12 RANGE 40 60 15 250 10 HI PASS 15K 22K 7K 3K 50K...

Page 2: ...selecting NADY AUDIO for your choice in graphic equalizers Date of Purchase__________________________ Dealer s Name____________________________ City_____________________________________ State_________...

Page 3: ...enclosing a lightening flash arrowhead symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclo sure which may be of sufficient magnitude to con...

Page 4: ...s function INSTALLATION 4 VOLTAGE SELECTOR Europe except UK 230V 50Hz UK and Australia 240V 50Hz USA and Canada 120V 60 Hz For other areas please check with local authorities If the voltage selector i...

Page 5: ...ly let a qualified professional repair the equipment An unauthorized person might touch the internal parts and receive a serious electric shock Never allow a child to put anything especially metal int...

Page 6: ...l is routed from the input directly to the output The bypass function is FET switched to prevent switching transients when inserting the equalizer into the circuit path Use this switch to compare equa...

Page 7: ...0 130VAC and for 220 240V AC 12 Ground Lift Switch This switch is used to disconnect the signal ground from the AC power and chassis earth ground This switch should be put in the LIFT position if the...

Page 8: ...einforcement Applications Musical Instrument Applications A Putting an equalizer in line with a musical instrument allows you to modify the sound of the instrument You can brighten the sound or add bo...

Page 9: ...B Below Clipping Low Cut High Pass Filter GEQ 131 131LF 231 10Hz to 250Hz 12dB Octave variable GEQ 215LF 40Hz 12dB Octave switchable Low Pass High Cut Filter GEQ 131 131LF 231 3KHz to 50KHz 12dB Octav...

Page 10: ...NOTES...

Page 11: ...ce nadywireless com INTERNATIONAL For service please contact the NADY AUDIO distributor in your country through the dealer from whom you purchased this product DO NOT ATTEMPT TO SERVICE THIS UNIT YOUR...

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