0
6
12
+
6
12
-
0
3
6
+
3
6
-
20
25
31.5
40
50
63
80
100
125
160
200
250
315
400
500
630
800
1k
1.25k
1.6k
2k
2.5k
3.15k
4k
5k
6.3k
8k
10k
12.5k
16k
20k
20
25
31.5
40
50
63
80
100
125
160
200
250
315
400
500
630
800
1k
1.25k
1.6k
2k
2.5k
3.15k
4k
5k
6.3k
8k
10k
12.5k
16k
20k
PO
ON
O FF
W C UT
INPUT LEVEL
R ELEASE
PE AK
M PRESSOR
ACK
B EQ
H z
A EQ
0
50
100
0.1
0.2
0.3
3
2
1
0
6
12
+
6
12
-
0
3
6
+
3
6
-
Channel A
16k
10k
6.3k
4k
2.5k
1.6k
1k
630
400
250
160
100
63
40
25
R ANGE
BYPASS
LOW CU T
+
-
1 2
OPTI CA L COM PRE
COMP
ATTAC K
6
+
-
80 Hz
POWER
O N
OF F
1
5
10
50
100
SM PRO AUDIO CQ15/CQ31
Graphic equalizer controls
The CQ15 features 15 adjustable frequency bands per channel spaced at
2/3-octave intervals. The CQ31 features 31 adjustable frequency bands
spaced at 1/3-octave. Both units offer the same complement of controls.
Faders
Raise the fader above the
0dB line to boost EQ at the
chosen band; lower the fader
to attenuate the EQ.
Range
Use to set the throw of the frequency band faders to ±6dB or ±12dB
Bypass
Removes the equalization
circuit from the audio path,
allowing the signal to pass
through unprocessed
80Hz Low Cut
When enabled, filters out frequencies below 80Hz
Input Level
Use to adjust the level of the signal being routed to the equalization circuitry
Peak LED
Flashes on when source signal exceeds recommended input level
PEAK
RANGE
BYPASS
LOW CUT
+
-
12
INPUT LEVEL
PEAK
6
+
-
80Hz