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MIXING CONSOLE Owner’s Manual Keep This Manual For Future Reference.
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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 out- let of the type stated in this Owner’s Manual or as marked on the unit.
• 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 { }.
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 chan- nel control sections, seven master control sections, and the rear panel connectors. Their functions will be explained sequentially.
3–4 Mono input channels 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.
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 sig- nal will be sent to the corresponding pair of AUX buses.
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 sig- nal.
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(MONO) INPUT A *2,*4 *1,*3 INPUT B *2,*4 GF12/12 GF16/12 GF24/12 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.
Front and rear panel Master controls GROUP section This section individually controls the output sig- nal 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 sec- tion), and can also be sent to the ST bus or PFL/ AFL bus by using the TO ST switch (group sec- tion 2) and AFL switch (group section 4).
AUX section This section individually controls the output sig- nals 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).
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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.
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.
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.
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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. 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.
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.
Connectors POWER ON/ OFF MONO OUT +4dBV 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.
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+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 follow- ing diagram. 1/4" phone plug INPUT A jacks 1–20 {1–12 on the GF16/12,...
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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 chan- nel. Nominal level is 0 dB. The pin wiring is shown in the following diagram.
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Front and rear panel 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) Ring (return) 1/4"...
+48 V is supplied to electrically balanced inputs. USA and Canada: 120 V AC 60 Hz Power requirement Other: Power consumption GF24/12: 70 W, GF16/12: 70 W, GF12/12: 70 W GF24/12: 938 157 487 mm Dimensions (WxHxD) GF16/12: 701 157 487 mm GF12/12: 587 157 487 mm...
Specifications Input specifications Gain Actual load Input terminals trim impedance INPUT A, B (1–20, 1–12, 1–8) ST INPUT A, B (21–24, 13–16, 9–12) AUX RTN IN (1, 2) 10 k TAPE IN (L, R) CH INSERT IN (1–20, 1–12, 1–8) ST INSERT IN (L, R) †1.
{1-8} 26dB GAIN INPUT B *1,*3 (MONO) INPUT A *2,*4 *1,*3 INPUT B *2,*4 GF12/12 GF16/12 GF24/12 +20 dB PAD 26 dB ST INPUT GAIN Min (+10 dB) GAIN Min (+10 dB) +10 dB INSERT I/O (0 dB) 0 dB –10 dB...
INSERT I/O L INSERT I/O R 1-20 Ch Input {1-12} {1-8} Ch Input *1,*3 from Ch Input *2,*4 AUX RETURN 1, 2 TAPE IN ST INSERT I/O (0 dB) TAPE IN (–10 dBV) REC OUT (–10 dBV) STEREO REC OUT MONO POST MONO...
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YAMAHA CORPORATION Pro Audio Division, #18/3 V329640 R3 1 IP 32 P.O. Box 3, Hamamatsu, 430-8651, Japan NP Printed in Taiwan...
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