Channel controls, Owner’ s manual, Mono channels 1 to 8 – MACKIE PPM1012 User Manual

Page 15: U” like unity gain, Signal flow, Owner’s manual

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1

Owner’s Manual

Owner’

s Manual

Channel Controls

The 10 vertical channel strips look very similar, and

have a only few differences between them. Each chan-
nel works independently, and just controls the signals
plugged into the inputs directly above it.

Mono Channels 1 to 8

• Channels 1 to 8 are mono channels, and their

controls affect either the mono mic input or the
mono line-level input.

• Channels 1 to 6 each have an internal signal in-

line compressor circuit with adjustable thresh-
old.

• Channels 7 and 8 each have a hi-z switch, so

you can connect guitars directly, without the
need for a DI box.

• The 3-band EQ has shelving high, shelving

low, and peaking mid EQ with adjustable mid
frequency.

80Hz

LOW

MIC

1

MIC

2

MIC

3

MIC

4

MIC

5

MIC

6

MIC

7

MIC

8

INPUT

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

(BAL/UNBAL)

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

INSERT

GAIN

U

-20

LAMP

12V 0.5A

L

R

FX SEND

TAPE

OUT

IN

L

MON SEND

FX RTN

(MONO)

MID

FREQ

R

L

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

600

1.5k

150

8k

100

OFF

MAX

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

U

GAIN

MI

C GAIN

0

+50

-20dB

+30dB

1

9/10

11/12

2

3

4

5

6

7

8

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

1

2

L

R

(MONO)

L

R

(MONO)

L

R

(MONO)

1

2

FX RTN

L

R

L

R

M

L

R

M

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

80Hz

LOW

MID

FREQ

R

L

600

1.5k

150

8k

100

EQ

12kHz

HI

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

R

L

PAN

AUX

SEND

MON

1

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

R

L

PAN

AUX

SEND

MON

1

FX

MON

2

FX

1

FX

2

U

+15

O

O

U

+15

O

O

U

+15

O

O

U

+15

O

O

-15

U

+15

-15

U

+15

-15

U

+15

1

FX

2

9

1

2

10

/

INPUT

11 12

/

MAIN OUT

MAIN INSERT

TAP

DELAY

INT FX

MUTE

TAP

DELAY

INT FX

MUTE

TAP TO EDIT

01 PLATE REVERB

02 VOCAL PLATE

03 WARM ROOM

04 BRIGHT ROOM

13 CHORUS

14 CHORUS + REVERB

15 DOUBLER

16 TAPE SLAP

05 WARM LOUNGE

06 SMALL STAGE

07 WARM THEATER

08 BRIGHT STAGE

09 WARM HALL

10 CONCERT HALL

11 CATHEDRAL

12 GATED REVERB

17 DLY 1 BRIGHT (350ms)

18 DLY 1 WARM (300ms)

19 DLY 2 BRIGHT (250ms)

20 DLY 2 WARM (200ms)

21 DLY 3 BRIGHT (175ms)

22 DLY 3 WARM (150ms)

23 CHORUS + DLY (300ms)

24 REVERB + DLY (200ms)

15

15

10

10

5

5

0

15

15

10

10

5

5

0

16K

8K

4K

2K

1K

500

250

125

63

HI-Z

HI-Z

OL

4

6
3

10

15

7

10

20
30

0
2

U

+20

O

O

TAPE IN

BREAK

MUTES

CH 1-12

U

+15

O

O

U

+15

O

O

TO MON 1

TO MON 2

FX 1

FX 1

MONO OUT

LPF

O

O

MAX

75Hz

100

180

120

200Hz

0dB = 0dBu

LEVEL

SET

RUDE

SOLO

MAIN

MON 2

EQ ASSIGN

MAIN

METERS

R

L

PHANTOM

POWER

MAIN EQUALIZER

MON 1 EQUALIZER

15

15

10

10

5

5

0

15

15

10

10

5

5

0

16K

8K

4K

2K

1K

500

250

125

63

SIG/OL

SIG/OL

U

+15

O

O

SEND MASTER

U

+15

O

O

SEND MASTER

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

O

O

5

5

U

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

OL

+10

0

-20

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

dB

30

20

10

O

O

40
50

5

5

U

60

SOLO

dB

30

20

10

O

O

40
50

5

5

U

60

dB

30

20

10

O

O

40
50

5

5

U

60

FX RTN

1

FX RTN

2

MON

1

MON

2

MAIN

FOOTSWITCH

TIP: FX1

RING: FX2

PHONES

FX

LEVEL

2 X 800W PROFESSIONAL POWERED MIXER

O

O

MAX

30

20

40
50
60

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

(L)

(R)

MON 1

MON 2

MAINS

MON 1

STEREO

MAIN

A

B

LINE

LINE

LINE

LINE

LINE

LINE

LINE

HI-Z

LINE

HI-Z

POWER AMP

LIMITER

A

B

POWER AMP

MODE

POWER

2 X 800W PROFESSIONAL POWERED MIXER

CAUTION

HOT SURFACE,

AVOID CONTACT

REVISION

SERIAL NUMBER

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR

B

SPEAKER OUT

A

SPEAKER OUT

OUTPUT POWER: @ 4 OHMS,

800 WATTS PEAK PER CH
MINIMUM LOAD: 4 OHMS PER CHANNEL

PIN

1+
1

PIN

1+
1

R

Stereo Channels 9/10 and 11/12

• Channels 9/10 and 11/12 are stereo channels,

and their controls affect signals coming into the
stereo line-level inputs

• The stereo channel EQ is a 4-band design with

shelving high, shelving low, and peaking lo-mid
and peaking hi-mid.

“U” like Unity gain

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.

Signal Flow

The block diagram on page 33 shows the signal flow,

but here is a short description of the flow through the
channel strip section:

The input signals from the mic, or line inputs go

through a preamplifier whose gain is set by the gain
control .

The signal then passes through the low-cut filter

(mono channels only) the compressor circuit (ch. 1 to 6
only), the insert jack (mono channels only), the chan-
nel EQ, channel fader, pan control, and then onto the
main mix.

The mon 1 [33] and mon 2 controls [34] tap the

signal off just before (pre) the channel fader.

The FX 1 [35] and FX 2 controls [36] tap the signal

off after (post) the channel fader.

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