SM Pro Audio CQ31: 31-Band Graphic EQ/Compressor - Manual (Page 8)

SM PRO AUDIO CQ15/CQ31
Release
The release control sets the time (in seconds) that it takes for the
compressor to return to 0dB gain reduction in the absence of a source
signal. Short release times create a more exaggerated effect (”pumping
and breathing"), whereas long release times produce a more natural sound.
AEQ BEQ Switch and Status LED
Use this control to place the compressor in the signal path either before
(BEQ) or after (AEQ) the equalizer. When the status LED is illuminated, the
compressor is in AEQ mode.
Note that on the CQ15, all compressor setting are independent for each channel.
Cq15/cq31 APPLICATIONs
Live Sound
The main use of a graphic equalizer in audio systems is to correct undesirable
anomalies in the overall sound, such reducing boominess in a venue that has
excessive low end response or adding some “sparkle” to a room that is overly
damped. A graphic EQ can also be used for overal “tone shaping,” which could
run the gamut from adding midrange definition vocals to refining the overall sound
of a mix. To a more limited extent, a graphic EQ can also be used to control feedback.
Since the CQ15 and CQ31 both include optical compressors, greater flexibility in
both signal processing and control is available. For example, you can boost high
frequencies to create clarity, while at the same time compressing the high
frequencies so that the occasional transient peak won’t harm your sound system
(or your audience’s ears!). You can also use the compressor to limit the dynamic
range of a live mix, while at the same time maintaining complete tonal control.
Bass and Guitar Rigs
EQs and compressors have long been staples in guitar and bass rigs. With the
CQ15/CQ31 you have the convenience of both processors in a single rackmount
unit. Dial in your tone with the EQ, then add punch and sustain with the compressor.
optical compressor cont.’
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C Q 15
GRAPH IC EQUAL IZER
R ANGE BYPASS LOW CU T
+ - 12
INPU T LEVEL
RELEAS E
P EAK
OPTI CA L COMPRESSOR
COMP ATTAC K BEQ
6 + -
80 Hz
AEQ
R AN GE BY PASS LOW CU T
+ - 1 2
INPUT L EVEL
RELEA SE
P EAK
OPT ICA L COM PRESSOR
COMP ATTAC K BEQ
6 + -
80 Hz
AEQ
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