Line-Level Sources And Guitars - Mackie onyx 1220i Quick Start Manual

Line-level Sources and Guitars

Connect your line-level sources to the 1/4" TRS line
input connectors. Channels 1-4 have mono line inputs,
and channels 5-12 are stereo. Each line input can ac-
cept TRS balanced or TS unbalanced sources.
Line-level sources include keyboards, drum machines,
electronic drum kits, CD players, iPod
preamp outputs and so on.
If you have a mono source and the mono channels are
already in use, plug it into the left input (labeled left/
mono) of the stereo channels, and the signal will appear
equally on the left and right of the main mix.
If you have a stereo source and want to use channels
1 and 2 for example, plug the left side into channel 1,
and set the pan control fully-left. Plug the right side into
channel 2 and set the pan control fully-right.
LINE/HI-Z
Engage this switch if you want to connect guitars
directly to the 1/4" line inputs of channels 1 or 2.
For line-level sources, disengage this switch.
To connect guitars to other channels, you will need a
DI box, or they will not sound good, particularly the high
frequency response. This applies to most mixers and
channels in general, unless they have a hi-z switch.
LOW CUT
Channels 1-4 have a low-cut switch that cuts bass
frequencies below 75 Hz. The low cut switch affects the
line and mic inputs.
EQUALIZATION
Mono channels 1-4 have a 3-band EQ, with shelving-
low, peaking-mid, and shelving-high controls. The mid
frequency is adjustable from 100 Hz to 8 kHz.
Stereo channels 5-12 have a stereo 3-band EQ with
shelving-low, peaking-mid, and shelving-high.
These EQ options allow a lot of adjustment to your
line-level sources and guitars. Apply EQ wisely and care-
fully, like makeup. (Too much and things can turn ugly.)
TAPE IN and TAPE OUT
Use these RCA unbalanced stereo inputs to connect
the line-level outputs from sources such as tape decks,
CD/DVD players and iPod
switch to listen in your control room or phones. Engage
"assign to main mix" to add the sounds to the main mix.
For example, you can play intermission music, or listen
to rare reference material of your band getting it right.
docks, guitar
®
docks. Engage the tape
®
The tape output is a copy of the main mix (post
fader), suitable for analog recording, sending to the
inputs of an external amplifier, or sound card etc.
SETTING THE LINE INPUT GAIN
The gain controls allow you to set your input signals to
an optimum level: not so hot that the mixer is overload-
ed, and not so low that the signal is lost in noise. For a
signal entering the TRS 1/4" line inputs, the adjustment
range is -20 dB to +40 dB for channels 1-4, and -20 dB to
+20 dB for channels 5-12. Use the following procedure
for setting the gain just right:
1. Press the solo switch at the bottom of the chan-
nel your source is connected to. The rude solo
light will flash to remind you that the source
playing in the control room, headphones, and
the right main meter is the soloed channel.
2. Play your source at typical loudness levels.
3. Adjust the channel gain control until the right
main meter level is hovering around the 0 dB
mark (labeled "level set").
4. Now the gain is set correctly, disengage solo.
5. During a performance, if you notice that the
OL (overload) LED next to the channel fader
turns on, carefully decrease the gain until OL
no longer comes on.
FIREWIRE
POWER
Mono
Line
1 2 3
Inputs
Hi-z
1 2 3
LINE LINE LINE
BAL/UNBAL BAL/UNBAL BAL/UNBAL
LINE LINE
HI-Z HI-Z 75Hz
18dB/OCT 18dB/OCT
Low Cut
48V 48V 48V
30 30 30
U U U
20 40 20 40 20 40 20
Gain
GAIN GAIN GAIN
U 60 U 60 U 60 U
- - - -
20dB 40dB 20dB 40dB 20dB 40dB 20dB
SEND SEND SEND SEND
PRE PRE PRE
POST POST POST
U EQ U EQ U EQ
HIGH HIGH HIGH
12kHz 12kHz 12kHz
- 15 15 - 15 15 - 15 15 -
1k 1k 1k
EQ
FREQ FREQ FREQ
100 8k 100 8k 100 8k 100
U U U
MID MID MID
- - - -
15 15 15 15 15 15
U U U
LOW LOW LOW
80Hz 80Hz 80Hz
- 15 15 - 15 15 - 15 15 -
AUX AUX AUX
1 1 1
MAX MAX MAX
2 2 2
MAX MAX MAX
PAN PAN PAN
L R L R L R
MUTE MUTE MUTE
ALT 3/4 ALT 3/4 ALT 3/4
dB dB dB
10 10 10
5 5 5
U U U
OL OL OL
5 5 5
- 20 - 20 - 20
10 10 10
20 20 20
30 30 30
40 40 40
50 50 50
60 60 60
Solo
SOLO SOLO SOLO
1 2 3
Quick Start Guide
( PRE-FADER / PRE EQ TIP SEND / RING RETURN )
MAIN OUT AUX SEND CHANNEL INSERT
BALANCED 1 4 3 2 1
R L
BAL/UNBAL AUX RETURN
2 R 2 L BAL/UNBAL R 1 L
Stereo Line Inputs
MAIN OUTPUT + 4dB
LEVEL MIC
Tape In/Out
4 CTRL - RM OUT MAIN OUT
ALT 3-4 OUT TAPE
BAL/UNBAL BAL/UNBAL BAL/UNBAL
L
IN OUT
L R L R L/3 R/4 R
LINE IN 5-6 LINE IN 7-8 LINE IN 9-10 LINE IN 11-12
4 L L L L
LINE (MONO) (MONO) (MONO) (MONO)
BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL
75Hz
R R R R
48V PREMIUM ANALOG MIXER w/ PERKINS EQ & FIREWIRE
CTRL ROOM/PHONES
30 U U U U
SOURCE
U 0dB=0dBu
40
GAIN GAIN GAIN GAIN GAIN L R
60 20
CLIP
- - - -
40dB 20dB 20dB 20dB 20dB 20dB 20dB 20dB 20dB
15
MAIN MIX
SEND SEND SEND SEND INPUT
10
PRE PRE PRE PRE
POST POST POST POST 6
LINE TAPE
EQ EQ EQ 3
U EQ U U U U FW 1-2
0
HIGH HIGH HIGH HIGH HIGH
12kHz 12kHz 12kHz 12kHz 12kHz FW 1-2 ALT 3-4 2
15 15 -15 +15 -15 +15 -15 +15 -15 +15
4
1k
7
FREQ
U U U U
ASSIGN TO 10
MAIN MIX
8k
MID MID MID MID 20
U
2.5kHz 2.5kHz 2.5kHz 2.5kHz
30
-15 +15 -15 +15 -15 +15 -15 +15
MID
MAX MAX
15 15 RUDE
CONTROL PHONES
U U U U U SOLO
ROOM
LOW LOW LOW LOW LOW
80Hz 80Hz 80Hz 80Hz 80Hz
AUX MASTER
15 15 -15 +15 -15 +15 -15 +15 -15 +15
AUX AUX AUX AUX AUX SEND RETURN
1 1 1 1 1 1 1
PRE
MAX MAX MAX MAX MAX 15 10
POST
RTN TO
AUX1
2 2 2 2 2 2 2
PRE
MAX MAX MAX MAX MAX POST 15 10
PAN PAN PAN PAN PAN
POWER
L R L R L R L R L R
MUTE MUTE MUTE MUTE MUTE
ALT 3/4 ALT 3/4 ALT 3/4 ALT 3/4 ALT 3/4
MIC
dB dB dB dB dB dB
10 10 10 10 10 10
5 5 5 5 5 5
U U U U U U
OL OL OL OL OL
5 5 5 5 5 MAX
5
- 20 - 20 - 20 - 20 - 20 LEVEL
10 10 10 10 10
10
DESTINATION
20 20 20 20 20
20
30 30 30 30 30
30
AUX
PHONES
40 40 40 40 40 40
1-2
50 50 50 50 50 50
60 60 60 60 60 60
TALKBACK
SOLO SOLO SOLO SOLO SOLO
4 5-6 7-8 9-10 11-12
TALKBACK MAIN MIX
Tape
Level
Set
9