Mackie PPM1012 Music Mixer User Manual


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18
PPM1012
PPM1012
26. HI-Z SWITCH (Ch. 7 and 8 only)
Engage this switch if you want to connect a guitar
directly to the 1/4" inputs of channels 7 or 8.
Without this switch, you need to use a DI box fi rst,
before connecting guitars directly. If these switches are
not pressed in, guitars will not sound good, particularly
the high frequency response.
CHANNEL EQUALIZATION (EQ)
The PPM1012 mono channels have 3-band equaliza-
tion: low shelving, mid peaking with adjustable frequen-
cy, and high shelving. The stereo channels have 4-band
EQ: low shelving, low-mid and high-mid peaking, and
high shelving.
Shelving EQ means that the circuitry boosts or cuts
all frequencies past the specifi ed frequency. For exam-
ple, the low EQ boosts bass frequencies below 80 Hz and
continuing down to the lowest note you never heard.
Peaking EQ means that certain frequencies form a “hill”
around the center frequency.
With too much EQ, you can really upset things. We’ve
designed a lot of boost and cut into each equalizer
circuit, because we know that everyone will occasion-
ally need that. But if you max the EQ on every channel,
you’ll get mix mush. Equalize subtly and use the left
sides of the knobs (cut), more than the right (boost).
If you fi nd yourself repeatedly using full boost or cut,
consider altering the sound source, such as placing a
mic differently, trying a different kind of mic, changing
the strings, or gargling.
80Hz
LOW
GAIN
U
-20
MID
FREQ
RL
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
600
1.5k150
8k100
OFF MAX
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
U
GAIN
M
I
C
G
A
I
N
0 +50
-20dB +30dB
1 9/10 11/122345678
SOLO
OL
+10
0
-20
SOLO
OL
+10
0
-20
1
9/10 11/12
2
3 4 5 6
7
8
EQ
EQ
OFF MAX OFF MAX OFF MAX OFF MAX OFF MAX
12kHz
HI
LOW CUT
100 Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
+20
12kHz
HI
80Hz
LOW
HI
MID
2.5kHz
LOW
MID
400Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
12kHz
HI
80Hz
LOW
HI
MID
2.5kHz
LOW
MID
400Hz
GAIN
U
-20
PAN
AUX
SEND
EQ
COMP COMP COMP COMP COMP COMP
+20
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
80Hz
LOW
MID
FREQ
RL
600
1.5k150
8k100
EQ
12kHz
HI
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
RL
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
RL
PAN
AUX
SEND
MON
1
MON
2
FX
1
FX
2
U
+15
OO
U
+15
OO
U
+15
OO
U
+15
OO
-15
U
+15
-15
U
+15
-15
U
+15
HI-Z HI-Z
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
dB
10
OO
5
5
U
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
SOLO
OL
+10
0
-20
dB
30
20
10
OO
40
50
5
5
U
60
30
20
40
50
60
10 10 10 10 10 10 10 10 10 10
1+
1
1+
1
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