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14

Front and rear panel

—Owner’s Manual

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.

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.

Other controls/connectors

1

P48 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 PHAN-
TOM 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.

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.

When the switch is up (

)

The two level meters at the left will show the out-
put 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

).

0

10

ON

TAPE IN

1

2

PHONES

PHONES

LEVEL

C-R MONITOR

LEVEL

0

10

0

10

4

5

6

METER SELECT

P48V

TAPE IN

OFF

ON

STEREO PFL•AFL

GROUP

1

2

3

Caution:   When phantom power is on, con-
necting 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.

Summary of Contents for GF12/12

Page 1: ...E Keep This Manual For Future Reference MIXING CONSOLE Owner s Manual ...

Page 2: ...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...

Page 3: ...t 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 inspec tion maintenance or repair is necessary contact your dealer Do not modify the unit Doing so is a fire and elec trical shock ...

Page 4: ...an 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 accom modate a range of s...

Page 5: ...N 3 4 ST 10 5 0 5 10 15 20 30 40 HIGH MID PEAK 15 15 GAIN 15 10 60 26dB 34 80 PAN R EVEN L ODD PRE PRE 1 2 3 4 5 6 0 10 0 10 0 10 0 10 0 10 0 10 15 15 LOW AUX PRE 15 15 250 5K PFL 1 2 ON 3 4 ST 10 5 0 5 10 15 20 30 40 HIGH MID PEAK 15 15 GAIN 15 10 60 26dB 34 80 PAN R EVEN L ODD PRE PRE 1 2 3 4 5 6 0 10 0 10 0 10 0 10 0 10 0 10 15 15 LOW AUX PRE 15 15 250 5K PFL 1 2 ON 3 4 ST 10 5 0 5 10 15 20 30 ...

Page 6: ...his 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 The response is flat when the knob...

Page 7: ...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 t...

Page 8: ...ol This adjusts the input sensitivity The range of levels that can be accommodated is 10 dB to 34 dB 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 cli...

Page 9: ... or the PHONES jack 0 Group select switches These switches send the signal of the input chan nel 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...

Page 10: ...hat 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 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 after fad...

Page 11: ...X 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 C R OUT jacks or the PHONES jack AUX section signal flow AFL 10 5 0 5 10 15 20 30 40 AFL 10 5 0 5 10 15 20 30 40 AFL 10 5 0...

Page 12: ...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 STE REO 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 a...

Page 13: ...t 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 ...

Page 14: ... this switch is on the PHAN TOM 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 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 bus...

Page 15: ...nal 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 Tape input and monitor output signal flow 1 4 TRS phone plug Tip hot Ring cold Sleeve grou...

Page 16: ...level meters at right will show either the out put 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 connec tors 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 ...

Page 17: ... through the STEREO fader Nominal out put level is 4 dB The pin wiring is shown in the following diagram 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 INPUT B INPUT B INPUT A INPUT A 21L 22R 23L 1R 2R 1L MONO MONO 2L L R L R 24R 21L 22R R R L L 1 2 3 4 5 6 1 2 3 4 POWER...

Page 18: ... 1 8 on the GF12 12 These are XLR 3 31 type input connectors bal anced for the monaural input channels Nomi nal 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 s...

Page 19: ...o 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 wir ing is shown in the following diagram A AUX RETURN jacks 1 2 These are 1 4 phone input jacks unbalanced for connecting...

Page 20: ...al from the TAPE IN jacks 4 The nominal output level is 4 dB The pin wiring is shown in the following diagram 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 E POWER switch This switch turns the power of the mixer on or off 1 4 phone plug 1 4 phone plug 1 4 TRS phone plug To processor s input From ...

Page 21: ...4 dB CH IN to GROUP OUT 58 dB ST IN to ST OUT 58 dB ST IN to GROUP OUT Crosstalk at 1 kHz 70 dB adjacent input 70 dB input to output 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 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 ...

Page 22: ...0 600Ω Mics 600Ω Lines 86 dB 38 8 µV 60 dB 0 775 mV 40 dB 7 75 mV A XLR 3 31 type 2 B Phone jack 2 MIN 42 dB 6 16 mV 16 dB 123 mV 4 dB 1 23 V ST INPUT A B 21 24 13 16 9 12 MAX 10 kΩ 600Ω Lines 60 dB 0 775 mV 34 dB 15 5 mV 14 dB 155 mV A Phono jack 3 B Phone jack 3 MIN 16 dB 123 mV 10 dB 2 45 V 30 dB 24 5 V AUX RTN IN 1 2 12 dB 195 mV 4 dB 1 23 V 20 dB 7 75 V Phone jack 3 TAPE IN L R 26 dBV 50 1 mV...

Page 23: ...Dimensions 23 Owner s Manual Dimensions 3 0 0 1 1 9 D 4 8 7 H 157 119 119 349 119 119 463 119 119 349 351 GF12 12 GF16 12 GF24 12 Unit mm W GF24 12 938 GF16 12 701 GF12 12 587 ...

Page 24: ... 1 R L PAN ST AUX 2 AUX 1 GROUP 2 GROUP 1 to PFL AFL PRE AUX 1 AUX 2 PRE AUX 3 AUX 4 AUX 5 AUX 6 GAIN INPUT B 80 3 Stage EQ HPF HA HA HPF 3 Stage EQ 80 INPUT A PEAK to PFL AFL AUX 6 5 4 3 2 1 GROUP AUX 6 AUX 5 AUX 4 AUX 3 PRE AUX 2 AUX 1 PAN PEAK 0dB 48V 80 g g LOW f g MID HIGH 3 Stage EQ Ch Fader INSERT I O 0 dB GAIN Max 30dB GAIN Min 10 dB GAIN Min 10 dB GAIN Min 16 dB GAIN Max 34 dB PAD 26 dB P...

Page 25: ...4 dB STEREO OUT MONO OUT 4 dB ST INSERT I O 0 dB TAPE IN 10 dBV L R AUX RETURN 1 2 from GROUP OUT 1 AUX RETURN 1 2 L R GROUP OUT AUX OUT from GROUP OUT 4 from GROUP OUT 3 from GROUP OUT 2 C R OUT PHONES ST TAPE IN R L TAPE IN C R MONITOR LEVEL LEVEL PFL AFL L R L PAD I O R I O L ST ST INSERT INSERT 20 dB 10 dB 0 dB 10 dB 20 dB 30 dB 40 dB 50 dB 60 dB BA BA BA BA PHONES L R ST R L 1 20 1 12 1 8 1 2...

Page 26: ...YAMAHA CORPORATION V329640 R3 1 IP 32 Pro Audio Division 18 3 P O Box 3 Hamamatsu 430 8651 Japan NP Printed in Taiwan ...

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