Yamaha Audio GF24/12, GF16/12, GF12/12 User Manual

MIXING CONSOLE

Owner’s Manual

Keep This Manual For Future Reference.

E

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANT

THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:

GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may

not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or coloured GREEN and YELLOW.

The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

* This applies only to products distributed by YAMAHA KEMBLE

MUSIC (U.K.) LTD.

Precautions

Warnings

• Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result.

• Connect this unit’s power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the unit. Failure to do so is a ﬁre and electrical shock hazard.

• Do not scratch, bend, twist, pull, or heat the power cord. A damaged power cord is a ﬁre and electrical shock hazard.

• Do not place heavy objects, including this unit, on top of the power cord. A damaged power cord is a ﬁre and electrical shock hazard. In particular, be careful not to place heavy objects on a power cord covered by a carpet.

• If you notice any abnormality, such as smoke, odor, or noise, or if a foreign object or liquid gets inside the unit, turn it off immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a ﬁre and electrical shock hazard.

• Should this unit be dropped or the cabinet be damaged, turn the power switch off, remove the power plug from the AC outlet, and contact your dealer. If you continue using the unit without heeding this instruction, ﬁre or electrical shock may result.

• If the power cord is damaged (i.e., cut or a bare wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power cord is a ﬁre and electrical shock hazard.

• Do not remove the unit’s cover. You could receive an electrical shock. If you think internal inspection, maintenance, or repair is necessary, contact your dealer.

• Do not modify the unit. Doing so is a ﬁre and electrical shock hazard.

Precautions

Cautions

• This unit has ventilation holes at the top and right side to prevent the internal temperature rising too high. Do not block them. Blocked ventilation holes are a ﬁre hazard.

• Hold the power cord plug when disconnecting it from an AC outlet. Never pull the cord. A damaged power cord is a potential ﬁre and electrical shock hazard.

• Do not touch the power plug with wet hands. Doing so is a potential electrical shock hazard.

Operating Notes

• Using a mobile telephone near this unit may induce noise. If noise occurs, use the telephone away from the unit.

• XLR-type connectors are wired as follows: pin 1: ground, pin 2: hot (+), and pin 3: cold (–).

• Insert TRS phone jacks are wired as follows: sleeve: ground, tip: send, and ring: return.

• The performance of components with moving contacts, such switches, rotary controls, faders, and connectors, deteriorates over time. The rate of deterioration depends on the operating environment and is unavoidable. Consult your dealer about replacing defective components.

3

—Owner’s Manual

Introduction

4

Introduction

Thank you for purchasing the Yamaha GF24/12, GF16/12, or GF12/12 mixing console. These mixers provide an ample twelve outputs, and are suitable for a wide variety of applications ranging from concert sound reinforcement to installed systems. In order to take full advantage of the mixer’s functionality and to enjoy years of trouble-free performance, please read this manual carefully.

Note:

• This owner’s manual assumes that you are familiar with basic operation of a mixing console and its specialized vocabulary.

• At points where the speciﬁcations of the GF24/12, GF16/12, and GF12/12 differ, the speciﬁcations of the GF16/12 and GF12/12 are given in curly brackets { }.

Features of the system

• In addition to the main stereo outputs, this mixer provides six AUX outputs plus four group outputs (a total of 12 outputs). The AUX/GROUP outputs can be used not only as sends to external effect processors or to a multitrack recorder, but are also ideal for creating separate foldback mixes for each speaker and amp.

• The MONO OUT jack can be controlled independently from the STEREO OUT jacks. Since a monaural mix of the main output is sent from this output, it can be used to extend a PA system.

• All input channels provide a high-pass ﬁlter, a three-band EQ, and 60 mm faders.

• All input channels/AUX returns provide a PFL switch, and AUX/group/stereo output channels provide an AFL switch. You can audition input and output sources at the touch of a button.

• All mono input channels provide balanced XLR type and TRS phone jack connectors that accommodate a range of sources from mics to line level devices.

• Switchable phantom power is provided. This can supply DC +48 V power from the XLR type input connectors to condenser mics and direct boxes that require an external power supply.

• Two stereo input channels allow connection of line-level equipment. 1/4" phone jack and phono jack inputs can be selected by a switch.

• Two stereo AUX returns are provided. This allows AUX return signals to be sent to an AUX bus or GROUP bus as well as to the ST bus. These can also be used as spare line level input jacks.

• An insert I/O jack is provided on each mono input channel and on the ST bus, allowing you to insert external effect processors as desired.

• The TAPE IN jacks and REC OUT jacks let you easily connect a master recorder for recording or playback.

Front and rear panel

This section explains the names and functions of each section of the GF24/12, GF16/12, and GF12/12.

The functionality of these mixers is grouped into ten sections. These are the two channel control sections, seven master control sections, and the rear panel connectors. Their functions will be explained sequentially.

Front panel

GAIN

+10

HIGH

MID

LOW

1

2

3

4

5

6 PAN

–15

PEAK

–15 +15

250 5K

–15 +15

010

1

26dB

GAIN

–34

+10

–60

–15

80

AUX

ON

10

5 0

5

10 15

20 30 40

–15

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

PAN

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

PFL

–34

+10

–60

–15

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

PAN

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

PFL

HIGH

MID

LOW

1

2

3

4

5

6 PAN

+10

–15

–15 +15

250 5K

–15 +15

010

GAIN

–34

+10

–60

–15

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

PAN

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

PFL

–15

PEAK

–15 +15

250 5K

–15 +15

010

26dB

GAIN

–34

+10

–60

–15

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

PAN

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

PFL

GAIN

HIGH

MID

LOW

1

2

3

4

5

6 PAN

+10

–15

–15 +15

250 5K

–15 +15

010

191817111098765432

20

26dB

GAIN

–34

+10

–60

–15

80

PEAK

AUX

PRE

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10 15

20 30 40

PFL

–15

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

PAN

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

PFL

20

1918171110987654321

Front and rear panel

5

6379

234

10

5

0

5

10

15

20

30

40

AFL

MONO

010

POST

10

5 0

5

10 15

20 30 40

AFL

STEREOGROUP 1 GROUP 2 GROUP 3 GROUP 4

PHANTOM +48V

OFF ON

METER SELECT

STEREO PFL•AFL

TAPE IN

010

C-R MONITOR

LEVEL

010

PHONES LEVEL

PHONES

POWER

PEAK +8 +5 +3 +1 0 –1 –3 –5 –7 –10 –15 –20

PHANTOM

GROUP

3

0

4

010

3

010

4

010

PEAK

+8 +5 +3 +1

0 –1 –3 –5 –7

–10

10

–15 –20

LR LR

STEREO PFL•AFL/TAPE IN

1

010

ON

MIXING CONSOLE

TAPE IN

10

5

0

5

10

15

20

30

40

AFL

PAN

RL

TO ST

RL

TO ST

10

5

0

5

10

15

20

30

40

AFL

23/24

21/22

A

B

26dB

GAIN

–34

–60

+10 –34

PEAK

HIGH

–15 +15

MID

–15 +15

LOW

–15 +15

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

BAL

R

EVENLODD

1–2

3–4

ST

PFL

GROUP

1

+10 –34

0

10

80

PEAK

2

010

HIGH

AUX

1

–15 +15

010

2

010

MID

–15 +15

LOW

–15 +15

AUX

PRE

1

010

2

010

PRE

3

010

4

010

PRE

5

010

6

010

BAL

R

EVENLODD

ON

10

1–2

5

3–4

0

5

ST

10 15

20 30 40

PFL

23/2421/22

ST

010

PFL PFL

AUX

1 AUX RETURN 2

PRE

10

5 0

PRE

5

10 15

20 30

PRE

40

AFL

AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6

PAN

R

RL

EVENLODD

TO ST

10

1–2

5

3–4

0

5

ST

10

15

20

30

40

AFL

PFL

Channel controls

1. Mono input channels (page 6)

2. Stereo input channels (page 8)

Rear panel

Connectors (page 17)

POWER

ON/ OFF

C-R OUT

MONO OUT

+4dB

GROUP OUT +4dB

+4dBV

ST INSERT I/O

1234

AUX OUT +4dB (BALANCE)

+4dBV

STEREO OUT

0dB

AUX RETURN

(MONO)

2LLRLR

TAPE IN –10dBV

REC OUT –10dBV

+4dB

1L

1R2R

23L

24R

123456

23L

24R

INPUT

(MONO)

INPUT

21 54 8

Master controls

3. GROUP section (page 10)

4. AUX section (page 11)

5. STEREO/MONO section (page 12)

6. AUX RETURN section (page 13)

7. TAPE IN section (page 14)

8. Other controls/connectors (page 14)

9. Meter section (page 16)

INSERT I/O

OUT IN

B

INSERT I/O

21L

0dB

22R

INPUT

B

21L

22RRRLL

INPUT

A

0dB

INPUT

B

INPUT

A

INSERT I/O 0dB

INPUT

B

INPUT

A

—Owner’s Manual

Front and rear panel

6

Channel controls

■

Mono input channels

4

6

GAIN

+10

–16

80

PEAK

HIGH

–15 +15

MID

250 5K

–15 +15

LOW

–15 +15

AUX

1

010

2

010

3

010

4

010

5

010

6

010

PAN

L

ODD

ON

10

5 0

5

10 15

20 30 40

26dB

–34

–60

PRE

R

EVEN

1–2

3–4

ST

PFL

1

2

3

5

7

8

9

0

A

B

C

Here are the 20 {12, 8} mono input channels of the GF24/12 {GF16/12, GF12/12}. The input channel section processes the signal from the input jacks of the connector section, and sends the result to the GROUP buses, AUX buses, and the ST bus.

1

Pad switch

This attenuates the input signal by 26 dB. The pad is on when this switch is pressed in.

2

GAIN control

This adjusts the input sensitivity. The range of levels that can be accommodated is –16 dB to –60 dB when the pad switch ( 1 ) is off, and +10 dB to –34 dB when the pad switch is on.

3

High pass ﬁlter switch

This is an on/off switch for the high pass ﬁlter that cuts the frequency range below 80 Hz at a slope of 12 dB/octave. The high pass ﬁlter is on when the switch is pressed in.

4

PEAK indicator

This is an indicator that detects post-EQ clipping. It will light 3 dB before clipping, indicating that the signal is near the clipping level. If this LED lights, lower the GAIN control ( 2 ).

5

EQ controls (HIGH/MID/LOW)

This is a three-band equalizer that boosts/cuts each frequency band over a

±

15 dB range. The center frequency and equalizer type for each band is shown below.

Band

HIGH 10 kHz shelving

MID 250 Hz–5 kHz peaking

LOW 100 Hz shelving

Center

frequency

Type

The response is ﬂat when the knob is in the “ position.

6

AUX controls (1–6)

These knobs adjust the level at which the input channel signal is sent to the AUX buses 1–6. AUX controls 1 and 2 are ﬁxed at pre-fader, and AUX controls 3–6 can be switched between pre/post fader using the PRE switch ( 7 ). When a knob is in the “ √ ” position, the level is “nominal”.

▼

”

—Owner’s Manual

PRE switches

7

These switches select whether the pre or post fader signal will be sent to AUX buses 3–6. This setting is switched in pairs: AUX 3/4 and 5/6. When the switch is pressed in, the pre-fader signal will be sent to the corresponding pair of AUX buses. When the switch is in the out (up) position, the post-fader signal will be sent.

8

PAN control

This adjusts the left/right position at which the input channel signal will be sent to the ST (stereo) bus, GROUP bus 1/2, and GROUP bus 3/4.

ON switch

9

This switches the input channel on/off. When this switch is turned off, the signal of the input channel will not be sent to the ST bus, GROUP buses, or AUX buses. However even if this switch is off, you can use the PFL switch ( B ) to monitor the signal from the C-R OUT jacks or the PHONES jack.

Channel controls

Group select switches

0

These switches send the signal of the input channel to GROUP buses 1–4. When the 1–2 switch is on (pressed in) the signal will be sent to GROUP bus 1/2. When the 3–4 switch is on, the signal will be sent to GROUP bus 3/4.

A

ST (stereo) switch

This switch sends the signal of the input channel to the ST bus. When this switch is on, the signal will be sent to the ST bus.

B

PFL (pre-fader listen) switch

This switch sends the pre-fader signal to the PFL/ AFL bus, allowing you to monitor it through headphones or monitor speakers. When this switch is on, the pre-fader signal of the input channel can be heard from the C-R OUT jacks and the PHONES jack, even if the ON switch ( 9 ) is off.

C

Channel fader

This fader adjusts the input level of the input channel. The position of the channel fader will affect the level of the signal that is output from the ST bus, GROUP buses 1–4, and AUX buses 1– 6 (except when the PRE switch is on for AUX buses 3–6).

7

INPUT A

1-20 {1-12} {1-8}

INPUT B

PHANTOM

+48V

PAD

26dB

+48V

HA

GAIN

PEAK

g

HIGH

PFL

HPF

80

INSERT I/O

0dB

3 Stage EQ

g

LOW

f

g

MID

Mono input channel signal ﬂow

AUX

GROUP

4321

ST

PAN

ON

PRE

1-2

3-4

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

PFL/AFL

654321

LR

ST

RL

—Owner’s Manual

Front and rear panel

8

■

Stereo input channels

4

6

GAIN

+10 –34

80

PEAK

HIGH

–15 +15

MID

–15 +15

LOW

–15 +15

AUX

1

010

2

010

3

010

4

010

5

010

6

010

BAL

L

EVEN

ODD

ON

10

5 0

5

10 15

20 30 40

PRE

1–2

3–4

ST

PFL

A B

1

2

Here are the two stereo input channels provided by the GF24/12, GF16/12, and GF12/12. The INPUT 21/22 and 23/24 {13/14 and 15/16 on the GF16, and 9/10 and 11/12 on the GF12/12} jacks ( 6 and 0 of the connector section) are pairs of

3

connectors that let you control a stereo signal using one input channel. If a cable is connected only to the INPUT A 21L or 23L jack {13L or 15L on the GF16/12, or 9L or 11L on the GF12/12}, the source will be controlled as a monaural signal.

5

A/B switch

1

This switch selects input jacks. When the switch is in the upward position ( ) the input signal of the INPUT A jack is selected (page 18, 6 of the connector section). When the switch is in the downward section ( ), the input signal of the INPUT B jack is selected ( 0 of the connector section).

GAIN control

2

This adjusts the input sensitivity. The range of levels that can be accommodated is +10 dB to –34 dB.

3

High pass ﬁlter switch

7

This is an on/off switch for the high pass ﬁlter that cuts the frequency range below 80 Hz at a slope of 12 dB/octave. The high pass ﬁlter is on when the switch is pressed in.

4

PEAK indicator

This is an indicator that detects post-EQ clipping.

R

8

It will light 3 dB before clipping, indicating that the signal is near the clipping level. If this LED

9

lights, lower the GAIN control ( 2 ).

5

EQ controls (HIGH/MID/LOW)

This is a three-band equalizer that boosts/cuts

0

each frequency band over a

±

15 dB range. The center frequency and equalizer type for each

A

B

C

band is shown below.

Band

HIGH 10 kHz shelving

MID 250 Hz peaking

LOW 100 Hz shelving

Center

frequency

Type

The response is ﬂat when the knob is in the “

▼

”

position.

—Owner’s Manual

AUX controls (1–6)

6

These knobs adjust the level at which the input channel signal is sent to the AUX buses 1–6. AUX controls 1 and 2 are ﬁxed at pre-fader, and AUX controls 3–6 can be switched between pre/post fader using the PRE switch ( 7 ). When a knob is in the “ √ ” position, the level is “nominal.”

7

PRE switches

These switches select whether the pre or post fader signal will be sent to AUX buses 3–6. This setting is switched in pairs: AUX 3/4 and 5/6. When the switch is pressed in, the pre-fader signal will be sent to the corresponding pair of AUX buses. When the switch is in the upward position, the post-fader signal will be sent.

8

BAL (balance) control

This adjusts the left/right balance at which the signal of the stereo input channel will be sent to the ST (stereo) bus, GROUP bus 1/2, and GROUP bus 3/4.

9

ON switch

This switches the input channel on/off. When this switch is turned off, the signal of the input channel will not be sent to the ST bus, GROUP buses, or AUX buses. However even if this switch is off, you can use the PFL switch ( B ) to monitor the signal from the C-R OUT jacks or the PHONES jack.

Channel controls

Group select switches

0

These switches send the signal of the input channel to GROUP buses 1–4. When the 1–2 switch is on (pressed in) the signal will be sent to GROUP bus 1/2. When the 3–4 switch is on, the signal will be sent to GROUP bus 3/4.

A

ST (stereo) switch

This switch sends the signal of the input channel to the ST bus. When this switch is on, the signal will be sent to the ST bus.

B

PFL (pre-fader listen) switch

This switch sends the pre-fader signal to the PFL/ AFL bus, allowing you to monitor it through headphones or monitor speakers. When this switch is on, the pre-fader signal of the input channel can be heard from the C-R OUT jacks and the PHONES jack, even if the ON switch ( 9 ) is off.

C

Channel fader

This fader adjusts the input level of the stereo input channel. The position of the channel fader will affect the level of the signal that is output from the ST bus, GROUP buses 1–4, and AUX buses 1–6 (except when the PRE switch is on for AUX buses 3–6).

9

INPUT A

INPUT B

No.

*1 *2 *3 *4

*1,*3 (MONO)

*2,*4

*1,*3

*2,*4

GF12/12

9L

10R

11L

12R

GF16/12

13L 14R 15L 16R

A

B

GF24/12

21L 22R 23L 24R

AUX

GROUP

4321

PEAK

HA

HPF

GAIN

HA

HPF

3 Stage EQ

PFL

ON

BAL

80

LOW

3 Stage EQ

MID

HIGH

PRE

ST

1-2

3-4

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

PFL/AFL

654321

LR

ST

RL

Stereo input channel signal ﬂow

—Owner’s Manual

Front and rear panel

10

Master controls

■

GROUP section

This section individually controls the output signal of GROUP buses 1–4. The signal that passes through the GROUP 1–4 output channels can be sent individually from the GROUP OUT 1–4 output jacks (page 20, D in the connector section), and can also be sent to the ST bus or PFL/ AFL bus by using the TO ST switch (group section 2 ) and AFL switch (group section 4 ).

PAN

1

2

TO ST

3

4

GROUP 1 GROUP 2 GROUP 3 GROUP 4

1

PAN control

This knob adjusts the left/right position when sending the signal of each GROUP bus 1–4 to the ST bus.

2

TO ST switch

This switch sends the signal of each GROUP bus 1–4 to the ST bus. When the switch is on, the signal that has passed through the PAN control (1) will be sent to the ST bus.

3 Group fader

This adjusts the output level of each GROUP bus 1–4. The position of the group fader will affect all signals that are sent from the GROUP bus to the GROUP OUT jacks, ST bus, and PFL/AFL bus.

PAN

RL

TO ST

10

5 0

5

10 15

20 30 40

AFL

PAN

RL

TO ST

10

5 0

5

10 15

20 30 40

AFL

GROUP

4321

PAN

RL

10

5 0

5

10 15

20 30 40

AFL

GROUP OUT 3-4:

RL

TO ST

10

5 0

5

10 15

20 30 40

AFL

to Meter

PAN

TO ST

AFL

to Meter

PAN

TO ST

AFL

Same as GROUP OUT 1-2

GROUP OUT 1

GROUP OUT 2

ST

RL

PFL/AFL

LR

4 AFL (after-fader listen) switch

This switch sends the signal of the GROUP bus to the PFL/AFL bus. If this switch is on, the afterfader signal of the GROUP bus can be monitored in the C-R OUT jacks or the PHONES jack.

—Owner’s Manual

Group section signal ﬂow

■ AUX section

This section individually controls the output signals of AUX buses 1–6. The signal that has passed through the AUX 1–6 output channels can be sent individually to the AUX OUT jacks 1–6 (page 17, 1 in the connector section), and can also be sent to the PFL/AFL bus by using the AFL switch (2 in the AUX section).

Master controls 11

10

5 0

5

10 15

20 30

1

2

40

AFL

AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6

1 AUX fader

These faders adjust the output level of AUX buses 1–6. The position of the AUX faders will affect the signals that are sent from the AUX bus to the AUX OUT jacks and the PFL/AFL bus.

2 AFL (after-fader listen) switch

This switch sends the AUX bus signal to the PFL/ AFL bus. When the switch is on, the after-fader signal of the AUX bus can be monitored in the CR OUT jacks or the PHONES jack.

10

5 0

5

10 15

20 30 40

AFL

10

5 0

5

10 15

20 30 40

AFL

AUX

10

5 0

5

10 15

20 30 40

AFL

654321

10

5 0

5

10 15

20 30 40

AUX OUT 3-4: AUX OUT 5-6:

Same as AUX OUT 1-2

AFL

10

5 0

5

10 15

20 30 40

AUX OUT 1

AUX OUT 2

AFL

PFL/AFL

LR

AUX section signal ﬂow

—Owner’s Manual

12 Front and rear panel

■ STEREO/MONO section

This section separately controls the STEREO OUT jacks (page 17, 3 in the connector section) which are the main output of the mixer, and the MONO OUT jack (page 17, 2 in the connector section) which outputs a monaural mix of the STEREO OUT output.

MONO

1

2

3

010

POST

10

5 0

5

10 15

20 30 40

STEREO

4

AFL

1 MONO (monaural) control

This adjusts the signal level that is sent to the MONO OUT jack. The level is nominal when the control is at the “√” position.

2 POST switch

This switches the output of the fader between the pre- and post-fader signals. When this switch is pressed in, the signal after passing through the STEREO fader (post-fader) will be sent to the MONO OUT jack. When this switch is in the upward position, the signal before passing through the STEREO fader (pre-fader) will be sent to the MONO OUT jack.

3 STEREO fader

This adjusts the level of the signal that is sent to the STEREO OUT jack. The position of the STEREO fader will affect the signals that are sent from the ST bus to the STEREO OUT jacks, the MONO OUT jack (if the POST switch 2 is on), and the PFL/AFL bus.

4 AFL (after-fader listen) switch

This switch sends the signal of the ST bus to the PFL/AFL bus. When the switch is on, the signal following the STEREO fader (the same signal as output from the STEREO OUT jacks) can be monitored from the C-R OUT jacks and the PHONES jack.

L STEREO

OUT R

MONO OUT

PFL/AFL

LR

ST

RL

ST INSERT I/O L

ST INSERT I/O R

L

REC OUT

PAD

R

to Meter

AFL

MONOPOST

STEREO/MONO section signal ﬂow

—Owner’s Manual

Master controls 13

■ AUX RETURN section

This section controls the two stereo AUX returns. By using the L and R jacks of AUX RETURN 1/2 (page 19, A in the connector section) in pairs, you can input stereo signals. If only the L jack of AUX RETURN 1/2 is connected, this can be used as a monaural AUX return. The input signal from AUX RETURN jack 1 can also be sent to GROUP bus 1/2 and AUX bus 1/2, and the input signal from AUX RETURN jack 2 can be sent to GROUP bus 3/4 and AUX bus 3/4.

1

3

4

GROUP

1

0 0

2

010

AUX

1

010

2

010

ST

010

PFL PFL

1 AUX RETURN 2

GROUP

3

10

AUX

ST

10

4

010

3

010

4

010

2

1 GROUP 1/2, AUX 1/2 mix controls

These controls adjust the level at which signals from the AUX RETURN 1 jacks are sent to GROUP bus 1/2 and AUX bus 1/2. When a stereo signal is input, the signals of the L and R channels will be sent to GROUP buses 1/2 and AUX buses 1/2 respectively. When a monaural signal is input, the same signal will be sent to GROUP buses 1 and 2, and to AUX buses 1 and 2.

2 GROUP 3/4, AUX 3/4 mix controls

These controls adjust the level at which signals from the AUX RETURN 2 jacks are sent to GROUP bus 3/4 and AUX bus 3/4. When a stereo signal is input, the signals of the L and R channels will be sent to GROUP buses 3/4 and AUX buses 3/4 respectively. When a monaural signal is input, the same signal will be sent to GROUP buses 3 and 4, and to AUX buses 3 and 4.

3 ST (stereo) controls

These adjust the level at which the input signals from the AUX RETURN 1/2 jacks are sent to the ST bus. The position of the stereo control knobs does not affect the GROUP 1–4 and AUX 1–4 mix controls (1 and 2).

4 PFL (pre-fader listen) switch

These switches send the input signal from the AUX RETURN 1/2 jacks to the PFL/AFL bus. When this switch is on, the input signal from the AUX RETURN 1/2 jacks can be monitored directly from the C-R OUT jacks or the PHONES jack.

AUX RETURN 1

AUX RETURN 2

L

(MONO)

R

L

(MONO)

R

GROUP 1

GROUP 2

AUX 1

AUX 2

ST

PFL

GROUP 3

GROUP 4

AUX 3

AUX 4

ST

PFL

AUX RETURN section signal ﬂow

GROUP

AUX

4321

PFL/AFL

ST

654321

LR

RL

—Owner’s Manual

14 Front and rear panel

■ TAPE IN section

This section controls the signal that is input from the TAPE IN jacks (page 17, 4 in the connector section). The input signal from the TAPE IN jacks can be sent directly from the ST bus, and can also be monitored from the C-R OUT jacks or PHONES jack.

010

ON

TAPE IN

1

2

1 ST (stereo) control

This adjusts the level at which the input signal from the TAPE IN jacks is output to the ST bus.

2 ON switch

This is an on/off switch for the signal that is sent from the TAPE IN jacks to the ST bus. Even when this switch is off, the TAPE IN switch (page 15, 3 in the other controls/connector section) can be turned on to allow monitoring of the TAPE IN input signal from the C-R OUT jacks or the PHONES jack.

PHANTOM +48V

OFF ON

METER SELECT

STEREO PFL•AFL

GROUP

TAPE IN

010

C-R MONITOR

LEVEL

010

PHONES

LEVEL

1

2

3

4

5

■ Other controls/connectors

1 PHANTOM +48 V (phantom power sup-

ply) switch

This is the on/off switch for the +48 V phantom power supply. When this switch is on, the PHANTOM indicator (page 16, 3 in the meter bridge section) will light, and DC +48 V phantom power will be supplied to the INPUT A jacks (page 18, 7 in the connector section) of each mono input channel.

Caution: When phantom power is on, connecting an unbalanced device or a device whose transformer is center-grounded may cause hum, noise, or malfunctions. If you do not require phantom power, be sure to turn this switch off.

2 METER SELECT switch

This selects the signal source whose level will be shown by the level meters.

When the switch is down ( )

The level meters will show the output level of the GROUP buses 1–4.

PHONES

6

—Owner’s Manual

When the switch is up ( )

The two level meters at the left will show the output level of the ST bus, and the two level meters at the right will show the output level of either the PFL/AFL bus or the TAPE IN jacks (page 17, 4 in the connector section), depending on the setting of the TAPE IN switch (3).

Master controls 15

3 TAPE IN switch

This selects the signal that will be monitored by the C-R OUT jacks and PHONES jack: either the PFL/AFL bus, or the TAPE IN jacks.

4 C-R MONITOR LEVEL (control room moni-

tor level) control

This adjusts the level of the signal that is sent to the C-R OUT jacks. It does not affect the output signal of the PHONES jack.

5 PHONES LEVEL (headphone) jack

This adjusts the level of the signal that is sent to the PHONES jack. It does not affect the output signal of the C-R OUT jacks.

6 PHONES (headphone) jack

A set of stereo headphones can be connected to this jack for monitoring. This jack will output the same signal as the C-R OUT jacks. The wiring of this jack is as shown in the following diagram.

Tip (hot)

1/4" TRS phone plug

Ring (cold)

Sleeve (ground)

TAPE IN

from STEREO OUT L

from GROUP OUT 1

from STEREO OUT R

PFL/AFL

ST

LR

RL

TAPE IN

L

R

ON

ST

from GROUP OUT 2

from GROUP OUT 3

from GROUP OUT 4

C-R MONITOR

LEVEL

PHONES

LEVEL

BA

METER SELECT

L

C-R OUT

R

PHONES

Tape input and monitor output signal ﬂow

—Owner’s Manual

16 Front and rear panel

■ Meter section

This is a peak level meter that shows (according to the setting of the METER SELECT switch, page 14) the output levels of GROUP buses 1–4, the ST bus, and the PFL/AFL bus, and the input level of the TAPE IN jacks. The status of the mixer’s power supply and phantom power is also shown here.

PEAK

+8 +5 +3 +1

0 –1 –3 –5 –7

–10 –15 –20

1

2

POWER

PEAK +8 +5 +3 +1 0 –1 –3 –5 –7 –10 –15 –20

LR LR

STEREO PFL•AFL/TAPE IN

1

1 Level meters

When the METER SELECT switch (page 14) is pressed inward ( ), the four level meters will show the output levels of GROUP buses 1–4. When the METER SELECT switch is in the upward position ( ), the two level meters at left will show the output level of the ST bus, and the two level meters at right will show either the output level of the PFL/AFL bus or the input level of the TAPE IN jacks (page 17, 4 of the connector section), depending on the setting of the TAPE IN switch (page 15, 3 of other controls/connectors).

3

PHANTOM

234

2 POWER indicator

This indicator shows the on/off status of the mixer’s power supply. When the POWER switch (page 20, E in the connector section) has been pressed to turn on the power, this indicator will light.

3 PHANTOM (phantom power supply) indi-

cator

This indicator shows the on/off status of the phantom power supply. When the PHANTOM +48 V switch (page 14, 1 in other controls/connectors) has been slid to turn on the phantom power, this indicator will light.

—Owner’s Manual

Connectors

Connectors 17

BC

+4dB

GROUP OUT

+4dBV

ST INSERT I/O

+4dB

AUX OUT

STEREO OUT

1234

+4dB (BALANCE)

+4dBV

E

POWER

ON/ OFF

C-R OUT

MONO OUT

12

1 AUX OUT jacks 1–6

These are TRS phone output jacks (balanced) that individually output the signals of AUX buses 1–6. Nominal level is +4 dB. These jacks can be connected to your foldback system or to the inputs of external effect processors. The pin wiring is shown in the following diagram.

0dB

AUX RETURN

(MONO)

2LLRLR

TAPE IN –10dBV

REC OUT –10dBV

0AD

+4dB

1L

INPUT

1R2R

23L

24R

123456

(MONO)

23L

24R

INPUT

54

63

3 STEREO OUT jacks

OUT IN

B

21L

22R

21L

22RRRLL

A

These are XLR-3-32 type connectors (balanced) which output the main stereo signal that has passed through the STEREO fader. Nominal output level is +4 dB. The pin wiring is shown in the following diagram.

INSERT I/O

INSERT I/O 0dB

INPUT

B

INPUT

A

INSERT I/O 0dB

INPUT

B

INPUT

A

INSERT I/O 0dB

INPUT

B

INPUT

9

8

7

A

Tip (hot)

1/4" TRS phone plug

Ring (cold)

Sleeve (ground)

2 MONO OUT jack

This is a XLR-3-32 type connector (balanced) which outputs a monaural mix of the main stereo output. Nominal output level is +4 dB. The pin wiring is shown in the following diagram.

Female XLR connector

2 (hot)

1 (ground)

3 (cold)

Female XLR connector

2 (hot)

1 (ground)

4 TAPE IN connector

These are phono inputs jacks (unbalanced) for connecting external line level devices. Nominal level is –10 dBV. The pin wiring is shown in the following diagram.

Phono plug

Tip

Sleeve

3 (cold)

—Owner’s Manual

18 Front and rear panel

5 REC OUT jacks

These are phono jacks (unbalanced) that output the signal from the ST bus, with a nominal level of –10 dBV. This output signal is not affected by external effect processors connected to the ST INSERT I/O jacks (B) or by the position of the STEREO fader (page 12, 3 in the STEREO/ MONO control section). The pin wiring is shown in the following diagram.

Phono plug

Tip

Sleeve

6 INPUT A jacks 21–24 {13–16 on the GF16/

12, 9–12 on the GF12/12}

These are 1/4" phone input jacks (unbalanced) for the stereo input channels, with nominal level of +10 dB to –34 dB. When using these as mono channels, insert a plug only into the 21L/23L jacks {13L/15L on the GF16/12, or 9L/11L on the GF12/12}. The pin wiring is shown in the following diagram.

Tip (send)

1/4" phone plug

7 INPUT A jacks 1–20 {1–12 on the GF16/12,

1–8 on the GF12/12}

These are XLR-3-31 type input connectors (balanced) for the monaural input channels. Nominal input level is –16 dB to –60 dB when the pad switch (page 6, 1 of the monaural input channel section) is off, and +10 dB to –34 dB when the pad switch is on.

When the PHANTOM +48 V switch (page 14, 1 of other controls/connectors) is on, DC +48 V phantom power is supplied to pins 2/3. The pin wiring is shown in the following diagram.

Male XLR connector

1 (ground)

3 (cold)

2 (hot)

8 INPUT B jacks 1–20 {1–12 on the GF16/12,

1–8 on the GF12/12}

These are TRS phone input jacks (balanced) for the monaural input channels. Nominal input level is the same as for the INPUT A jacks (7). Be aware that it is not possible to simultaneously use both the INPUT A and INPUT B jacks of the same channel. Phantom power is not supplied to the INPUT B jacks. The pin wiring is shown in the following diagram.

Sleeve (ground)

1/4" TRS phone plug

Tip (hot)

Ring (cold)

Sleeve (ground)

—Owner’s Manual

9 INSERT I/O jacks 1–20 {1–12 on the GF16/

12, 1–8 on the GF12/12}

These are TRS phone input/output jacks for inserting external effect processors between the EQ and channel fader of a monaural input channel. Nominal level is 0 dB. The pin wiring is shown in the following diagram.

Connectors 19

Tip (send)

1/4" phone plug

Tip (send)

Ring (return)

Sleeve (ground)

Connect to INSERT I/O jack

1/4" TRS phone plug

0 INPUT B jacks 21–24 {13–16 on the GF16/

12, 9–12 on the GF12/12}

These are phono input jacks (unbalanced) for the stereo input channels. Nominal level is the same as the INPUT A jacks (6). On the stereo input channels, you can make connections both to the INPUT A jacks (6) and the INPUT B jacks (0), and use the A/B switch (page 8, 1 in the stereo input channel section) to select whether INPUT jack A or B will be used.

Be aware that in the case of the INPUT B jacks, the channel cannot be used as a mono input channel by inserting a plug only into 21L and 23L. (If only 21L or 23L are connected, the signal will be sent only to the left channel.) The pin wiring is shown in the following diagram.

To processor’s input

1/4" phone plug

From processor’s output

Sleeve (ground)

Tip (return)

Sleeve (ground)

A AUX RETURN jacks 1/2

These are 1/4" phone input jacks (unbalanced) for connecting the stereo output of external effect processors, etc. The nominal level is +4 dB. If inputting a monaural signal, connect a plug only to the 1L or 2L jack. The pin wiring is shown in the following diagram.

Tip (send)

1/4" phone plug

Sleeve (ground)

Phono plug

Tip

Sleeve

—Owner’s Manual

20 Front and rear panel

B ST INSERT I/O jacks

These are TRS phone input/output jacks for inserting external effect processors between the ST bus and the STEREO fader. The nominal input/output level is 0 dB. The pin wiring is shown in the following diagram.

Tip (send)

1/4" phone plug

Tip (send)

Ring (return)

Sleeve (ground)

Connect to INSERT I/O jack

1/4" TRS phone plug

C C-R OUT (control room monitor out) jacks

These are 1/4" phone output jacks (unbalanced) for monitoring the PFL/AFL bus or the input signal from the TAPE IN jacks (4). The nominal output level is +4 dB. The pin wiring is shown in the following diagram.

Tip (send)

1/4" phone plug

To processor’s input

1/4" phone plug

From processor’s output

Sleeve (ground)

Tip (return)

Sleeve (ground)

D GROUP OUT jacks 1–4

These are 1/4" phone jacks (unbalanced) which individually output the signals of GROUP buses 1–4. The nominal output level is +4 dB.

Tip (send)

1/4" phone plug

Sleeve (ground)

E POWER switch

This switch turns the power of the mixer on or off.

—Owner’s Manual

Speciﬁcations

General speciﬁcations

Specifications 21

Frequency response

Total harmonic distortion

Hum & noise

(Average, Rs=150Ω with 20 Hz–20 kHz BPF)

Maximum voltage gain

Crosstalk

(at 1 kHz)

CH input gain control 44 dB variable CH input PAD 0 dB/26 dB CH input HPF 80 Hz 12 dB/oct

CH input equalization

ST input equalization

Meters 13 points LED meters x4 (GROUP 1–4 /ST L R, PFL•AFL•TAPE IN L R)

20 Hz–20 kHz +1 dB, –3 dB @+4 dB into 600Ω (GROUP OUT, AUX OUT, ST OUT, MONO OUT)

Less than 0.1%, @20 Hz–20 kHz, +14 dB into 600Ω (GROUP OUT, AUX OUT, ST OUT, MONO OUT)

–128 dB equivalent input noise –95 dB residual output noise (GROUP OUT, AUX OUT, ST OUT, MONO OUT)

–86 dB (GROUP OUT, ST OUT, MONO OUT)

–81 dB (AUX OUT)

–64 dB (68 dB S/N) (GROUP OUT, AUX OUT, ST OUT)

84 dB CH IN to ST OUT 84 dB CH IN to GROUP OUT 58 dB ST IN to ST OUT 58 dB ST IN to GROUP OUT

70 dB adjacent input 70 dB input to output

±15 dB maximum HIGH 10 kHz shelving* MID 250 Hz–5 kHz peaking LOW 100 Hz shelving* * Turn over/roll off frequency of shelving: 3 dB below maximum variable level.

±15 dB maximum HIGH 10 kHz shelving* MID 2.5 kHz peaking LOW 100 Hz shelving* * Turn over/roll off frequency of shelving: 3 dB below maximum variable level.

Input gain control: minimum

Master fader: nominal level All channel faders: minimum All channel assign switches: off

Master fader: nominal level All channel faders, all AUX level controls: minimum

Master fader, one channel fader, AUX level control: nominal level, Assign switch: on One channel gain control: maximum

CH peak indicators Red LED on each channel turns on when Post EQ signal reaches the level –3 dB below clipping. Phantom power +48 V is supplied to electrically balanced inputs.

Power requirement

Power consumption GF24/12: 70 W, GF16/12: 70 W, GF12/12: 70 W

Dimensions (WxHxD)

Weight GF24/12: 20 kg, GF16/12: 16 kg, GF12/12: 14 kg

• 0 dB is referenced to 0.775 Vrms.

USA and Canada: 120 V AC 60 Hz Other: 230 V AC 50 Hz

GF24/12: 938×157×487 mm GF16/12: 701×157×487 mm GF12/12: 587×157×487 mm

—Owner’s Manual

22 Specifications

Input speciﬁcations

Gain

Input terminals

INPUT A, B (1–20, 1–12, 1–8)

ST INPUT A, B (21–24, 13–16, 9–12)

AUX RTN IN (1, 2) –12 dB (195 mV) +4 dB (1.23 V) +20 dB (7.75 V) TAPE IN (L, R) –26 dBV (50.1 mV) –10 dBV (316 mV) +8 dBV (2.51 V) Phono jack CH INSERT IN

(1–20, 1–12, 1–8) ST INSERT IN (L, R) –10 dB (245 mV)

Actual load

trim

impedance

MAX

MIN –42 dB (6.16 mV) –16 dB (123 mV) +4 dB (1.23 V)

MAX

MIN –16 dB (123 mV) +10 dB (2.45 V) +30 dB (24.5 V)

3 kΩ

10 kΩ 600Ω Lines

For use with

nominal

50–600Ω Mics

&

600Ω Lines

Sensitivity

–86 dB (38.8 µV) –60 dB (0.775 mV) –40 dB (7.75 mV)

–60 dB (0.775 mV) –34 dB (15.5 mV) –14 dB (155 mV)

–26 dB (38.8 mV)

†1

Input level

Connector

Nominal Max. before clip

A: XLR-3-31 type B: Phone jack

A: Phono jack B: Phone jack

Phone jack

0 dB (775 mV) +20 dB (7.75 V) Phone jack (I/O)

†1. Sensitivity is the lowest level that will produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set at maximum

gain. (All faders and level controls are at maximum positions.) †2. Balanced. †3. Unbalanced.

• When dB represents a speciﬁc voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced to 1 Vrms.

Output speciﬁcations

Output level

Connector

Output terminals

Actual source

impedance

For use with

nominal

Nominal Max. before clip

†2

†3 †3

†3

ST OUT (L, R) MONO OUT GROUP OUT (1–4) 75Ω +20 dB (7.75 V) Phone jack AUX OUT (1–6) 150Ω +24 dB (12.3 V) Phone jack C-R OUT (L, R) 75Ω +20 dB (7.75 V) Phone jack REC OUT (L, R) CH INSERT OUT

(1–20, 1–12, 1–8) ST INSERT OUT (L, R) PHONES OUT 100Ω 40Ω Phones 3 mW 100 mW ST phone jack

150Ω

600Ω Lines +4 dB (1.23 V)

600Ω 10 kΩ Lines

+24 dB (12.3 V) XLR-3-32 type

–10 dBV (316 mV) +10 dBV (3.16 V) Phono jack

0 dB (775 mV) +20 dB (7.75 V) Phone jack (I/O)

†1. Balanced. †2. Unbalanced.

• When dB represents a speciﬁc voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced 1 Vrms.

Speciﬁcations are subject to change without prior notice.

For European Model

Purchaser/User Information speciﬁed in EN55103-1 and EN55103-2.

Inrush Current: 3A

Conformed Environment: E1, E2, E3 and E4

†1

†2

†1

†2

—Owner’s Manual

Dimensions

119 119349351

Dimensions 23

119 119349

GF12/12

119 119463

GF16/12

GF24/12

W:

GF24/12: 938 GF16/12: 701 GF12/12: 587

H: 157

300

D: 487

119

Unit: mm

—Owner’s Manual

24 Specifications

Block/Level Diagram

INPUT A

1-20 {1-12} {1-8}

INPUT B

INPUT A

INPUT B

No.

*1 *2 *3 *4

*1,*3 (MONO)

*2,*4

*1,*3

*2,*4

GF12/12

9L 10R 11L 12R

PHANTOM

+48V

GF16/12

13L 14R 15L 16R

PAD

26dB

A

B

+48V

GF24/12

21L

22R

23L

24R

HA

GAIN

HA

GAIN

HPF

80

INSERT I/O

3 Stage EQ

g

LOW

3 Stage EQ

LOW

3 Stage EQ

0dB

f

MID

AUX RETURN 1

AUX RETURN 2

AUX

GROUP

PEAK

PAN

PEAK

ON

to PFL/AFL

PFL

ON

BAL

PFL

to PFL/AFL

GROUP 1

GROUP 2

GROUP 3

GROUP 4

g

HIGH

MID

HIGH

L

(MONO)

R

L

(MONO)

R

PRE

AUX 1

AUX 2

ST

PFL

AUX 3

AUX 4

ST

to ST

ST

1-2

3-4

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

to ST

ST

1-2

3-4

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

to ST

to PFL/AFL

to ST

654321

4321

to Meter

PAN

TO ST

GROUP OUT 1

to PFL/AFL

AFL

GROUP OUT 2-4:

Same as GROUP OUT 1

AUX OUT 1

to PFL/AFL

AFL

AUX OUT 2-6:

Same as AUX OUT 1

+20 dB

+10 dB

0 dB

–10 dB

–20 dB

–30 dB

–40 dB

–50 dB

–60 dB

PAD 26 dB

PAD 0 dB GAIN Min (–16 dB)

PAD 26 dB GAIN Max (–34 dB)

PAD 0 dB GAIN Max (–60 dB)

ST INPUT GAIN Min (+10 dB)GAIN Min (+10 dB)

INSERT I/O (0 dB)

ST INPUT GAIN Max (–30dB)

Ch Fader

—Owner’s Manual

AUX RETURN (+4 dB)

PFL

to PFL/AFL

GROUP OUT, AUX OUT (+4 dB)

AUX (–6 dB)

GROUP, AUX

25

ST

RL

PFL/AFL

LR

TAPE IN

from

L

R

1-20

Ch Input

{1-12} {1-8}

Ch Input *1,*3 Ch Input *2,*4

AUX RETURN 1, 2

ST

ST INSERT I/O L

ST INSERT I/O R

L

REC OUT

PAD

R

(L) (R)

L R

ON

AFL

MONOPOST

from

L STEREO

OUT R

MONO OUT

1-20

Ch Input

{1-12} {1-8}

Ch Input *1,*3 Ch Input *2,*4

AUX RETURN 1, 2

GROUP OUT

AUX OUT

L R

TAPE IN

from GROUP OUT 1

from GROUP OUT 2

from GROUP OUT 3

from GROUP OUT 4

C-R MONITOR

LEVEL

PHONES

LEVEL

BA

METER SELECT

L

C-R OUT

R

PHONES

ST INSERT I/O (0 dB)

TAPE IN (–10 dBV)

REC OUT (–10 dBV)

MONO

STEREO OUT, MONO OUT (+4 dB)

C-R OUT (+4 dB)

PHONES (3 mW, 40*)

—Owner’s Manual

+20 dB

+10 dB

0 dB

–10 dB

–20 dB

–30 dB

–40 dB

–50 dB

–60 dB

V329640 R3 1 IP 32 Pro Audio Division, #18/3

NP Printed in Taiwan

YAMAHA CORPORATION

P.O. Box 3, Hamamatsu, 430-8651, Japan

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Yamaha Audio GF24/12, GF16/12, GF12/12 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Precautions

Introduction

Features of the system

Contents

Front and rear panel

Front panel

Rear panel

Channel controls

Master controls

Connectors

Specifications 21

Dimensions

Block/Level Diagram