Channel Controls - Mackie ProFX12 Owner's Manual

ProFX12
MIC MIC MIC MIC
1 2 3
LINE
HI-Z
BAL / BAL /
BAL /
UNBAL UNBAL
UNBAL
LINE/HI-Z IN 1 LINE IN 2 LINE IN 3 LINE IN 4
INSERT INSERT INSERT INSERT
U U U U
LEVEL LEVEL LEVEL
SET SET SET
U +50 U +50 U +50 U +50
-20dB +30dB -20dB +30dB -20dB +30dB -20dB
GAIN GAIN GAIN GAIN
LOW CUT LOW CUT LOW CUT LOW CUT
100 Hz 100 Hz 100 Hz 100 Hz
EQ EQ EQ
U U U U
HI HI HI
12kHz 12kHz 12kHz
-15 +15 -15 +15 -15 +15 -15 +15
U U U U
MID MID MID
2.5kHz 2.5kHz 2.5kHz
-15 +15 -15 +15 -15 +15 -15 +15
U U U U
LOW LOW LOW
80Hz 80Hz 80Hz
-15 +15 -15 +15 -15 +15 -15 +15
AUX AUX AUX
U U U U
MON MON MON
+15 +15 +15 +15
O O O O O O O O
U U U U
FX FX FX
+15 +15 +15 +15
O O O O O O O O
PAN PAN PAN
L R L R L R L R
MUTE MUTE MUTE
OL OL OL OL
1 2 3
dB dB dB dB
10 10 10 10
5 5 5 5
U U U U
5 5 5 5
10 10 10 10
20 20 20 20
30 30 30 30
40 40 40 40
50 50 50 50
60 60 60 60
O O O O O O O O
MONO
ProFX8
MIC MIC MIC MIC
LINE LINE 1 2 3/4
HI-Z HI-Z
(MONO)
BAL /
L
UNBAL
BAL /
LINE/HI-Z IN 1 LINE IN 2 LINE IN 3 LINE IN 5
UNBAL
R
INSERT INSERT LINE IN 4 LINE IN 6
U U
LEVEL LEVEL LEVEL
SET SET SET
U +50 U +50
U +50 U
+30dB +30dB
-20dB -20dB
GAIN GAIN GAIN GAIN
LOW CUT LOW CUT LOW CUT LOW CUT
100 Hz 100 Hz 100 Hz 100Hz
EQ EQ EQ
U U U U
HI HI HI
12kHz 12kHz 12kHz
-15 +15 -15 +15 -15 +15 -15 +15
U U U U
MID MID MID
2.5kHz 2.5kHz 2.5kHz
-15 +15 -15 +15 -15 +15 -15 +15
U U U U
LOW LOW LOW
80Hz 80Hz 80Hz
-15 +15 -15 +15 -15 +15 -15 +15
AUX AUX AUX
U U U U
MON MON MON
+15 +15 +15 +15
O O O O O O O O
U U U U
FX FX FX
+15 +15 +15 +15
O O O O O O O O
PAN PAN PAN
L R L R L R L
MUTE MUTE MUTE
OL OL OL OL
1 2 3/4
dB dB dB dB
10 10 10 10
5 5 5 5
U U U U
5 5 5 5
10 10 10 10
20 20 20 20
30 30 30 30
40 40 40 40
50 50 50 50
60 60 60 60
O O O O O O O O
MONO HYBRID
MIC MIC (UNBALANCED)
L
TAPE
IN
R
4 5/6 7/8 9/10
(MONO) (MONO) (MONO)
BAL /
L L L
UNBAL
BAL / BAL / BAL /
LINE IN 5 LINE IN 7 LINE IN 9
UNBAL UNBAL UNBAL
R R R
LINE IN 6 LINE IN 8 LINE IN 10
U
LEVEL LEVEL LEVEL
SET SET SET
U +50 U +50 -20 +20
+30dB
GAIN GAIN GAIN
LOW CUT LOW CUT
100 Hz 100 Hz
EQ EQ EQ EQ
U U U
HI HI HI HI
12kHz 12kHz 12kHz 12kHz
-15 +15 -15 +15 -15 +15
U U U
MID MID MID MID
2.5kHz 2.5kHz 2.5kHz 2.5kHz
-15 +15 -15 +15 -15 +15
U U U
LOW LOW LOW LOW
80Hz 80Hz 80Hz 80Hz
-15 +15 -15 +15 -15 +15
AUX AUX AUX AUX
U U U
MON MON MON MON
+15 +15 +15
O O O O O O
U U U
FX FX FX FX
+15 +15 +15
O O O O O O
PAN PAN PAN PAN
L R L R L R
MUTE MUTE MUTE MUTE
OL OL OL
4 5/6 7/8 9/10
dB dB dB dB
10 10 10 10
5 5 5 5
U U U U
5 5 5 5
10 10 10 10
20 20 20 20
30 30 30 30
40 40 40 40
50 50 50 50
60 60 60 60
O O O O O O O O
HYBRID STEREO
(UNBALA
L
TAPE
IN
R
5/6 7/8
(MONO) (MONO)
L L
BAL / BAL /
LINE IN 7
UNBAL UNBAL
R R
LINE IN 8
U
LEVEL
SET
-20 +20
+50
GAIN
EQ EQ
U
HI HI
12kHz 12kHz
-15 +15
U
MID MID
2.5kHz 2.5kHz
-15 +15
U
LOW LOW
80Hz 80Hz
-15 +15
AUX AUX
U
MON MON
+15
O O
U
FX FX
+15
O O
PAN PAN
R L R
MUTE MUTE
OL
5/6 7/8
dB
10
5
U
5
10
20
30
40
50
60
O O
STEREO

Channel Controls

L
The vertical channel strips look very similar, with only
TAPE
OUT
R
a few differences between them. Each channel works
11/12
independently, and just controls the signals plugged into
(MONO)
L the inputs directly above it. There are three different
BAL /
LINE IN 11
UNBAL
fl avors of channel strip: Mono, Hybrid, and Stereo.
R
LINE IN 12
Mono Channels (1–4 on ProFX12)
U
-20 +20
GAIN
• The mono channel controls affect both the
EQ
U
mono mic input and the mono line-level input.
HI
12kHz
-15 +15
U
• The gain knob adjusts both mic and line inputs.
MID
2.5kHz
-15 +15
U
• Each mono channel has an insert jack and low
LOW
80Hz
-15 +15
cut switch.
AUX
U
MON
• Channel 1 has a hi-z switch so you can connect
+15
O O
U
FX
a guitar directly.
+15
O O
PAN
• The 3-band EQ has shelving high, shelving low,
L R
and peaking mid EQ.
MUTE
OL
11/12
Hybrid Channels (5/6, 7/8 on ProFX12)
• Except for gain and low cut, these controls
affect the mono mic input and the stereo line-
level input.
• The gain knob adjusts the mic input only. (The
stereo line inputs are fi xed at unity gain.)
• The low cut switch only affects the mic input.
• The mono mic input is split equally to the left
and right.
• The hybrid channel EQ is a 3-band design just
like the mono channel EQ.
Stereo Channels (9/10, 11/12 on ProFX12)
• These controls affect the stereo line-level
inputs.
• The gain knob adjusts the left and right line
inputs equally. There is no level set LED or low
cut switch.
• The stereo channel EQ is a 3-band design just
like the mono channel EQ.
"U" LIKE UNITY GAIN
Mackie mixers have a "U" symbol on almost every level
control. This "U" stands for "unity gain," meaning no
change in signal level (0 dB gain). Once you have ad-
justed the input signal with the gain control, you can set
every control at "U" and your signals will travel through
the mixer at optimal levels. What's more, all the labels
on our level controls are measured in decibels (dB), so
you'll know what you're doing level-wise if you choose to
change a control's settings.
(1, 2 on ProFX8)
(3/4, 5/6 on ProFX8)
(7/8 on ProFX8)
Owner's Manual
17