MACKIE ProFX12 - Manual (Page 13)

13
Owner’s Manual
Owner’
s Manual
Front Panel Features
Connection Section
This is where to plug things in: microphones, line-
level instruments and effects, headphones, and the
ultimate destination for your sound: PA system, stage
monitors, effects processors, CD player/recorder, etc.
See Appendix B for further details and drawings of
the connectors to use with the ProFX mixer.
5. MIC INPUTS
We use phantom-powered, balanced microphone
inputs just like the big studio mega-consoles for
exactly the same reason: This kind of circuit is
excellent at rejecting hum and noise. You can plug
in almost any kind of mic that has a standard XLR
male mic connector.
Professional ribbon, dynamic and condenser mics will
all sound excellent through these inputs. The ProFX
mixer’s mic inputs will handle any kind of mic level
tossed at them without overloading. Be sure to perform
the gain-setting procedure mentioned on page 3.
PHANTOM POWER
Most modern professional condenser mics
require phantom power which lets the mixer send
low-current DC voltage to the mic’s electronics through
the same wires that carry audio. (Semi-pro condenser
mics often have batteries to accomplish the same
thing.) “Phantom” owes its name to an ability to be
“unseen” by dynamic mics (Shure SM57/SM58, for
instance), which don’t need external power and aren’t
affected by it, anyway.
The ProFX mixer’s phantom power is globally
controlled by the phantom power switch [31]. (This
means that phantom power for all mic inputs is turned
on and off together.)
Never plug single-ended (unbalanced)
micro phones or ribbon microphones into the
mic input jacks if phantom power is on. Do
not plug instrument outputs into the mic input jacks
with phantom power on unless you know for certain it is
safe to do so.
6. LINE/HI-Z SWITCH
To connect a guitar directly to the mixer without
using a DI Box, press this switch in first; then connect
the output from the guitar to channel 1's 1⁄4" TRS
input [7]. The input impedance is optimized for direct
connection and high-frequency fidelity is assured.
In the out position, channel 1's 1⁄4" TRS input
becomes a line input just like the other mono line
inputs [8].
To use guitars or other instruments on other
channels, you will need to use an external DI box
first. Without the DI box – or if this switch is not
pressed in – guitars may sound dull and muddy.
7. LINE/HI-Z INPUT (Channel 1 only)
This 1/4" jack shares circuitry (but not phantom
power) with the mic preamp and may be driven by
balanced or unbalanced sources.
To connect a balanced line to this input, use a 1⁄4"
Tip-Ring-Sleeve (TRS) plug.
To connect an unbalanced line to this input, use a 1⁄4"
mono (TS) phone plug or instrument cable.
This line-level input may also accept instrument-level
signals if the hi-z switch [6] is pressed in. This allows
you to connect guitars directly into channel 1 without
the need for a DI box.
MAIN
RIGHT
(BALANCED)
MAIN
LEFT
USB
(BALANCED)
8K 4K 2K 1K 500 250 125
15
15
10
10
5
5
0
15
15
10
10
5
5
0
TAPE
IN
ST RETURN MAIN OUT PHONES
FOOTSWITCH
PHONES
TAPE
OUT
L
R
L
(UNBALANCED)
R
STEREO GRAPHIC EQ
FX SEND
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
LINE IN 4
INSERT
R L
LOW CUT
100 Hz
U
GAIN
MI C GAIN
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 O O
MON
FX
U
+15 O O
R L
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
R L
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
R L
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
80Hz
LOW
U
+15 -15
U
+15 -15
U
+15 -15
R L
LOW CUT
100 Hz
12kHz
HI
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
80Hz
LOW
U
+15 -15
U
+15 -15
U
+15 -15
BAL /
UNBAL
(MONO) (MONO) (MONO) (MONO)
LINE IN 7
LINE IN 8
BAL /
UNBAL LINE IN 9
R L
LOW CUT
100 Hz
GAIN
7/8 5/6
12kHz
HI
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
80Hz
LOW
U
+15 -15
U
+15 -15
U
+15 -15
R L
MIC
GAIN
U +50
GAIN
MIC
GAIN
U +50
9/10
12kHz
HI
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
MI C GAIN
U +50
-20dB +30dB
LEVEL
SET
LEVEL
SET
LEVEL
SET
LOW CUT
100 Hz
U
GAIN
MI C GAIN
U +50
-20dB +30dB
LOW CUT
100 Hz
U
GAIN
MI C GAIN
U +50
-20dB +30dB
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
GAIN
MIC MIC MIC MIC MIC MIC
80Hz
LOW
U
+15 -15
U
+15 -15
U
+15 -15
U
+20 -20
GAIN
U
+20 -20
R L
11/12 ST RTN FX RTN
EQ EQ EQ EQ EQ EQ EQ EQ
12kHz
HI
PAN
AUX U
+15 O O
MON
FX
U
+15 O O
U
+15
FX TO MON FX MASTER
U
+15 O O O O
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
dB
30
20
10
10
O O
40
50
5
5
U
60
L
R
(MONO)
LINE IN 5
LINE IN 6
BAL /
UNBAL
L
R
LINE IN 10
BAL /
UNBAL
L
R
LINE IN 11
LINE IN 12
BAL /
UNBAL
L
R
BAL /
UNBAL
L
R
BAL /
UNBAL
L
R
MON SEND
BAL /
UNBAL
BAL /
UNBAL
PRESETS
FX PRESETS
01 BRIGHT ROOM
02 WARM LOUNGE
03 SMALL STAGE
04 WARM THEATER
05 WARM HALL
06 CONCERT HALL
13 DELAY 1 (300ms)
14 DELAY 2 (380ms)
15 DELAY 3 (480ms)
16 REVERB + DLY (250ms)
07 PLATE REVERB
08 CATHEDRAL
09 CHORUS
10 CHORUS + REV
11 DOUBLER
12 TAPE SLAP
MON MAIN
4
LINE IN 3
INSERT
3
BAL /
UNBAL
3
LINE IN 2
INSERT
2
BAL /
UNBAL
BAL /
UNBAL
2
LINE/HI-Z IN 1
INSERT
1 5/6 7/8 9/10 11/12
POWER
ON
0dB=0dBu
MAIN
METERS
OL
4
6
3
10
15
7
10
20
30
0
2
BREAK
(MUTES ALL CHANNELS)
PHANTOM
POWER
POWER
O O +10
U
TAPE LEVEL
O O +20
U
USB THRU
LINE
HI-Z
O O MAX
1
OL OL OL OL OL OL OL OL OL
OL
MAIN MIX
MON
EQ IN
BYPASS
R L INPUT LEVEL
USB
MUTE
MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE
48V
6
5
7
10
8 8 8
9 9 9
10 10 10
9