20
ProFX8 and ProFX12
ProFX8 and ProFX12

27. AUX FX

These knobs tap a portion of each channel's signal to

set up a nice FX mix feeding the internal FX processor,

and to feed external processors via the FX output [14].

The aux FX feed from hybrid and stereo channels is a

mono sum of the left and right sides of these channels.

The controls are off when turned fully down, deliver

unity gain at the center detent, and can provide up to 15

dB of gain turned fully up.

The channel fader [31], mute [30] and other channel

controls affect the FX output, but pan [28] does not.

The aux FX is post-fader.

The FX signal reaching the internal FX processor

and the FX send output jack, is the sum (mix) of all

the channels whose aux FX control is set to more than

minimum. The overall FX send level can be adjusted

with the FX master knob [52].

The FX signal from the internal FX processor is added

to the main mix using the FX return fader [46], and can

be added to the monitors with the FX to mon knob [54].

28. PAN

These knobs adjust the amount of channel signal sent

to the left versus the right outputs. On mono channels

these controls act as pan pots. On hybrid and stereo

channels, they work like the balance control on a home

stereo. They do not affect the aux mon or FX mixes.

29. OL LED

This LED will light if the channel signal is too high,

and this may cause distortion due to overloading.

The OL LED comes before the channel fader [31] in

the signal path, so the fader has no effect in your efforts

to turn off the OL LED.

Overloading may occur if the gain [20] is set too high,

so check that the level set LED [21] is not turning on

frequently. Turn down the gain if it is.

Overloading can also occur if the channel EQ [23-25]

is set too high. Check that the EQ settings are moderate.

Use the low cut switches [22] if the overloading is due

to lower unwanted bass thumps and bangs.

30. MUTE

Press this switch in to mute the channel in the main

mix. The aux mon output of the channel is not muted,

but the FX output to the internal FX processor and FX

send jack [14] is.

31. CHANNEL FADER

These faders control the channel’s level, from off, to

unity gain, on up to 10 dB of additional gain. The mono

channels have mono faders, and the hybrid and stereo

channels use stereo faders.

With the gain control [20] set correctly, the faders

should be set around unity gain (U).

MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
MID
2.5kHz
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
RL
LOW CUT
100 Hz
U
GAIN
M
I
C
G
A
I
N
U+50
-20dB +30dB
4
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
12kHz
HI
MID
2.5kHz
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
12kHz
HI
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
RL
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
RL
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
RL
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
RL
LOW CUT
100 Hz
12kHz
HI
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
RL
LOW CUT
100 Hz
GAIN
7/85/6
12kHz
HI
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
RL
M
I
C
G
A
I
N
U+50
GAIN
M
I
C
G
A
I
N
U+50
9/10
12kHz
HI
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
M
I
C
G
A
I
N
U+50
-20dB +30dB
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
M
I
C
G
A
I
N
U+50
-20dB +30dB
LOW CUT
100 Hz
U
GAIN
M
I
C
G
A
I
N
U+50
-20dB +30dB
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
GAIN
80Hz
LOW
U
+15-15
U
+15-15
U
+15-15
U
+20-20
GAIN
U
+20-20
RL
11/12
EQEQEQEQ EQ EQ EQ EQ
12kHz
HI
PAN
AUX
U
+15
OO
MON
FX
U
+15
OO
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
dB
30
20
10
10
OO
40
50
5
5
U
60
321
OL OL OL OL OL OL OL OL
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