Channel Controls

The vertical channel strips look very similar, and have only a few differences between them. Each

 

 

 

1

 

 

 

2

 

 

 

3

 

 

 

4

 

YX

M

 

 

YX

M

 

 

YX

M

 

 

YX

M

 

 

IC

PR

 

IC

PR

 

IC

PR

 

IC

PR

N

 

N

 

N

 

N

 

O

 

 

E

O

 

 

E

O

 

 

E

O

 

 

E

CTRL - RM O

BAL/UNBAL

L

LINE IN 5-6

channel works independently, and just controls the signals plugged into the inputs directly above it.

Here are a few features and differences:

1

LINE

BAL/UNBAL

LINE

HI-Z

48V

30

20 U 40

GAIN

U 60 -20dB +40dB

SEND

PRE

POST

U EQ

HIGH

12kHz

-15 +15

1k

FREQ

1008k

U

MID

-15 +15

U

LOW

80Hz

-15 +15

AUX

1

OO

MAX

2

2

LINE

BAL/UNBAL

LINE

HI-Z

48V

 

30

20 U

40

GAIN

U 60

-20dB +40dB

SEND

PRE

POST

U EQ

HIGH

12kHz

-15 +15

1k

FREQ

1008k

U

MID

-15 +15

U

LOW

80Hz

-15 +15

AUX

1

OO

MAX

2

3

LINE

BAL/UNBAL

75Hz

18dB/OCT

48V

30

20 U 40

GAIN

U 60 -20dB +40dB

SEND

PRE

POST

U EQ

HIGH

12kHz

-15 +15

1k

FREQ

1008k

U

MID

-15 +15

U

LOW

80Hz

-15 +15

AUX

1

OO

MAX

2

4

LINE

BAL/UNBAL

75Hz

18dB/OCT

48V

30

20 U 40

GAIN

U 60 -20dB +40dB

SEND

PRE

POST

U EQ

HIGH

12kHz

-15 +15

1k

FREQ

1008k

U

MID

-15 +15

U

LOW

80Hz

-15 +15

AUX

1

OO

MAX

2

L

(MONO)

BAL/UNBAL

R

U

GAIN

-20dB +20dB

SEND

PRE

POST

U EQ

 

HIGH

 

12kHz

-15

+15

 

U

 

MID

 

2.5kHz

-15

+15

 

U

 

LOW

 

80Hz

-15

+15

 

AUX

 

1

OO

MAX

 

2

Mono Channels 1-4

•These are mono channels, and their controls affect either the mono mic input or the mono line-level input.

•Channel 1 and 2 each have a hi-z switch, so you can connect guitars directly without the need for a DI box.

•48 Volt Phantom Power can be selected for each mic input.

•High pass filters affects both the mic and line inputs.

•Gain control adjusts the mic level and line level.

•The 3-band EQ has shelving high, shelving low, and peaking mid EQ with adjustable mid frequency.

Stereo Channels 5-12

• The stereo channels each have two line-level

OO

MAX

OO

MAX

OO

MAX

OO

MAX

 

 

PAN

 

PAN

 

PAN

PAN

L R

L R

L R

L

R

MUTE

MUTE

MUTE

MUTE

ALT 3/4

ALT 3/4

ALT 3/4

ALT 3/4

dB

dB

dB

dB

10

10

10

10

5

5

5

5

U

U

U

U

OO

MAX

 

 

PAN

L R

MUTE

ALT 3/4

dB 10

5

U

inputs.

• For mono sources, use the left input only, and

it will appear equally on both sides of the main

mix.

• Gain control adjusts the line level only.

• The 3-band EQ has shelving high, shelving low,

and peaking mid EQ.

• Channel 11 and 12 have a switch to select

FireWire inputs instead of the analog line

inputs.

OL

OL

OL

OL

5

5

5

5

- 20

- 20

- 20

- 20

5

OL

- 20

“U” like Unity gain

10

10

10

10

20

20

20

20

30

30

30

30

40

40

40

40

50

50

50

50

60

60

60

60

OO

OO

OO

OO

SOLO

SOLO

SOLO

SOLO

1 2 3 4

10

20

30

40

50

60

OO

SOLO

5-6

Mackie mixers have a “U” symbol on almost every level control. It stands for “unity gain,” meaning no change in signal level. The labels on the 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.

16Onyx 1220i