Справочник Пользователя для Mackie 1220I

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Owner's Manual   
21
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
OL
20
OL
20
OL
20
OL
20
OL
20
SOLO
SOLO
SOLO
SOLO
SOLO
MUTE
MUTE
MUTE
MUTE
MUTE
48V
48V
48V
48V
U
+
15
-
15
U
+
15
-
15
ON
YX MIC PRE
 
PRE
POST
HI-Z
LINE
BAL/UNBA
CTRL - RM 
 SEND
EQ
MID
2.5kHz
HIGH
12kHz
PRE
POST
SEND
L
R
(MONO)
L
1
2
75Hz
18dB/OCT
3
75Hz
18dB/OCT
4
ON
YX MIC PRE
 
PRE
POST
HI-Z
LINE
 SEND
ON
YX MIC PRE
 
PRE
POST
 SEND
ON
YX MIC PRE
 
GAIN
GAIN
GAIN
GAIN
+
40dB
U
-
20dB
U
20
30
40
60
+
40dB
U
-
20dB
U
20
30
40
60
+
40dB
U
-
20dB
U
20
30
40
60
+
40dB
U
-
20dB
U
20
30
40
60
U
+15
-15
U
+15
-15
PRE
POST
 SEND
1k
100
8k
HIGH
12kHz
U
+
15
-
15
LOW
80Hz
EQ
AUX
2
1
L
R
PAN
1
LINE
2
LINE
4
LINE
3
LINE
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
GAIN
+
20dB
-
20dB
U
MAX
O
O
MAX
O
O
U
+15
-15
LOW
80Hz
AUX
2
1
L
R
PAN
MAX
O
O
MAX
O
O
2
3
4
5-6
LINE IN 5-6
MID
FREQ
U
+
15
-
15
U
+
15
-
15
1k
100
8k
HIGH
12kHz
U
+
15
-
15
LOW
80Hz
EQ
AUX
2
1
L
R
PAN
MAX
O
O
MAX
O
O
MID
FREQ
U
+
15
-
15
U
+
15
-
15
1k
100
8k
HIGH
12kHz
U
+
15
-
15
LOW
80Hz
EQ
AUX
2
1
L
R
PAN
MAX
O
O
MAX
O
O
MID
FREQ
U
+
15
-
15
U
+
15
-
15
1k
100
8k
HIGH
12kHz
U
+
15
-
15
LOW
80Hz
EQ
AUX
2
1
L
R
PAN
MAX
O
O
MAX
O
O
MID
FREQ
1
9
10
18
19
20
21
22
24
25
26
28
29
29
30
31
33
34
32
12
27
11
32. –20 and OL LEDs
These LEDs indicate the channel’s signal level after 
the gain and EQ controls, but just before the channel’s 
level. So even if the level is turned down, you can see if 
a signal is present, or if the channel is being overloaded. 
The OL (overload) LED will come on when the  
channel’s input signal is too high. This should be 
avoided, as distortion will occur. If the OL LED comes 
on regularly, check that the gain control [21] is set  
correctly for your input device, and that the channel EQ 
is not set with too much boost.
The –20 LED comes on when the channel signal 
strength has reached that level.
33. CHANNEL FADER
This is the last control in a channel’s signal path, and 
it adjusts the level of each channel onto the main mix. 
The “U” mark  indicates unity gain, meaning no increase 
or decrease of signal level. All the way up provides an 
additional 10 dB, should you need to boost a section of 
a song. If you fi nd that the overall level is too quiet or 
too loud with the level near unity, check that the gain 
control [21] is set correctly.
34. SOLO
Whenever a solo switch is engaged, you will only hear 
the soloed channel(s) in the headphones and control 
room. This gives you the opportunity to audition the 
channels before they are added to the main mix or alt 
3–4 mix. You can still hear, even when the fader is down.
Solo is also used to set the gain of each channel 
correctly. When a channel is soloed, you can adjust the 
channel gain [21] until your input source reaches the 
level of the 0 dB LED of the right meter.
Solo signals reaching the headphones and 
control room are not affected by the channel 
level or main level; therefore, turn down the 
phones level [39] and control room level [38] fi rst, as 
soloed channels may be loud.
The rude solo light [41] will turn on as a reminder 
that what you are listening to in the headphones and 
control room is just the soloed channel(s).
For stereo channels, the mono sum of the left and 
right is soloed.
Soloed channels are sent to the source mix, which 
ultimately feeds your control room, phones, and meters. 
Whenever solo is engaged, all source selections (main 
mix, alt 3-4, tape, and FireWire) are defeated, to allow 
the soloed signal to do just that—solo!