Mackie PPM1012 Channel Controls, Stereo Channels 9/10 and 11/12, Like Unity gain, Signal Flow

Page 15

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

1

 

MIC 1

 

MIC 2

 

MIC 3

 

MIC 4

 

MIC 5

 

MIC 6

 

MIC 7

 

MIC 8

 

 

2

 

 

2

 

 

 

 

 

 

 

 

MON SEND

FX SEND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HI-Z

 

 

HI-Z

 

 

L

 

 

L

 

 

LINE

 

 

LINE

 

 

LINE

 

 

LINE

 

 

LINE

 

 

LINE

 

 

LINE

 

 

LINE

 

 

 

 

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

(BAL/UNBAL)

 

 

(MONO)

 

 

(MONO)

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

INSERT

 

 

R

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT 9/10

INPUT 11/12

 

 

1

 

 

2

 

 

3

 

 

4

 

 

5

 

 

6

 

 

7

 

 

8

 

9/10

11/12

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

IC GAI

 

IC GAI

 

IC GAI

 

IC GAI

 

IC GAI

 

IC GAI

 

IC GAI

 

IC GAI

 

 

 

 

 

M

N

 

M

N

 

M

N

 

M

N

 

M

N

 

M

N

 

M

N

 

M

N

 

 

 

 

 

 

 

0

+50

0

+50

0

+50

0

+50

0

+50

0

+50

0

+50

0

+50

-20

+20

 

-20

+20

 

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

-20dB

+30dB

 

 

 

 

 

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

GAIN

 

LOW CUT

LOW CUT

LOW CUT

LOW CUT

LOW CUT

LOW CUT

LOW CUT

LOW CUT

 

 

 

 

 

 

 

100 Hz

 

100 Hz

 

100 Hz

 

100 Hz

 

100 Hz

 

100 Hz

 

100 Hz

 

100 Hz

 

 

 

 

 

 

 

 

COMP

 

 

COMP

 

 

COMP

 

 

COMP

 

 

COMP

 

COMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HI-Z

 

 

HI-Z

 

 

 

 

 

 

OFF

MAX

OFF

MAX

OFF

MAX

OFF

MAX

OFF

MAX

OFF

MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

U

EQ

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

HI

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

 

 

12kHz

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

 

MID

 

 

MID

 

 

MID

 

 

MID

 

 

MID

 

 

MID

 

 

MID

 

 

MID

 

 

HI

 

 

HI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MID

 

 

MID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.5kHz

 

 

2.5kHz

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

 

600

 

 

600

 

 

600

 

 

600

 

 

600

 

 

600

 

 

600

 

 

600

 

 

U

 

 

U

 

150

 

1.5k

150

 

1.5k

150

 

1.5k

150

 

1.5k

150

 

1.5k

150

 

1.5k

150

 

1.5k

150

 

1.5k

 

 

LOW

 

 

LOW

 

 

 

 

 

 

 

 

 

 

MID

 

 

MID

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

FREQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400Hz

 

 

400Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-15

+15

-15

+15

100

8k

100

8k

100

8k

100

8k

100

8k

100

8k

100

8k

100

8k

 

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

LOW

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

-15

+15

 

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

U

SEND

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

MON

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

 

 

1

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

U

 

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

FX

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

 

 

2

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

OO

+15

 

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

 

 

PAN

L R

 

L R

 

L R

 

L R

 

L R

 

L R

 

L R

 

L R

 

L R

 

L R

 

dB

 

1

dB

 

2

dB

 

3

dB

 

4

dB

 

5

dB

 

6

dB

 

7

dB

 

8

dB

9/10

dB

11/12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

5

 

OL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

U

 

+10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

 

 

0

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

 

 

-20

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

10

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

20

 

 

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

30

 

SOLO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

40

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

50

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

60

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

OO

 

 

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.

Owner’s Manual

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.

The FX 1 [35] and FX 2 controls [36] tap the signal off after (post) the channel fader.

Owner’s Manual

15

Image 15
Contents PPM1012 PPM1012 Important Safety InstructionsPlay something into that input at real-world levels To try out your new powered mixer. PleaseDisengage the channels solo switch Read ThisIntroduction Headphones play main mix, or soloed channelsContents Microphones Portable Recorder Hookup DiagramsHouse of Worship DJ System Band System SPEAKER-LEVEL Outputs PPM1012 FeaturesPower Switch Rear PanelPhantom Power Connection SectionMIC Inputs Insert Ch to MON Send 1 and MON SendFX Send 1 and FX Send Main Outputs Tape InputsTape Outputs Main InsertsLUNCH-TIME Decoupler FX Footswitch ConnectorBNC Lamp Connection LevelLike Unity gain Signal FlowChannel Controls Stereo Channels 9/10 and 11/12Gain Control LOW CUT Channels 1-8 onlyIng levels Dynamic range is the difference in level be Compressor Channels 1-6 onlyChannel Equalization EQ HI-Z Switch Ch and 8 onlyHigh EQ MON 2 AUX Send36. FX2 AUX Send Channel Fader Mute switch and LEDPAN 39. -20, 0, +10, OL Channel Meter LEDsIt is safe to do so Power LEDMaster Controls Affected by it anyway Never plug single-ended unbalancedPower AMP Limiter LEDs MON 1 EqualizerMain EQ Assign Tape Power AMP Mode SwitchMain MIX Meters Rude Solo LightLPF Low-Pass-Filter Mono OUTMost active subwoofers have their own Monitor 1 Fader and Monitor 2 Fader FX 1 to MON 1 and FX 1 to MONFX RTN 1 Fader and FX RTN 2 Fader Main FaderThere are two identical Mackie Running-Man Stereo Effects Processors60. FX1 Send Master and FX2 Send Master SIG/OL LEDInternal FX Mute Preset DisplayRepair Appendix a Service InformationTroubleshooting Is phantom power required for your micro- phones?XLR Connectors Appendix B ConnectionsRCA Plugs and Jacks Speakons Loudspeaker CableInterrupting normal operation Specifications Appendix C Technical InformationPPM1012 FX2 Block DiagramTitle Description Example of its use Appendix D Table of Effects PresetsPPM1012 Limited Warranty