MIXING CONSOLE Owner’s Manual E
ii Precautions 1. Avoid excessive heat, humidity, dust and vibration Keep the unit away from locations where it is likely to be exposed to high temperatures or humidity — such as near radiators, stoves, etc. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage. 2. Ventilation The unit has ventilation slots on the top, rear and bottom panels. Do not block these vents. 3.
Introduction 1 Introduction Thank you for choosing the Yamaha GA32/12 or GA24/12 mixing console. Please read this manual thoroughly to take best advantage of the console and extend its useful life. Notes: This manual has been written on the assumption that you already understand the basic operation and technical terminology of mixing consoles. Descriptions of GA24/12 specifications appear in brackets ({}) if they differ from the GA32/12.
2 Front Panel Front Panel GAIN 26dB +10 –16 5 –34 –60 PEAK HIGH 80 1 2 Monaural input channels 3 4 The GA32/12 {GA24/12} has 28 {20} monaural input channels. They are located on both sides of the master section and feature the same specifications. A Pad switch –15 +15 This switch is used to attenuate input signals by 26 dB. Press down the switch to turn the pad on. HI-MID 400 8k –15 +15 LO-MID 80 1.6k –15 +15 6 LOW This control knob is used to adjust input sensitivity.
3 Monaural input channels I ON switches These switches are used to turn on and off the signals routed from the input channel to MIX buses 1–4. Note: When these switches are set to off, no signals will be sent from the input channel to the corresponding MIX buses regardless of the setting of the switches in the Variable/Fix select section (see page 6). J M5–M10 mix level controls These controls route the input channel signals to MIX buses 5–10. Use the PRE switches K to select pre- or post-fader.
4 Front Panel Stereo input channels GAIN 1 +10 2 –34 PEAK 80 3 A GAIN control HIGH –15 This control is used to adjust input sensitivity. The adjustable range is +10 dB to –34 dB. +15 B PEAK indicator HI-MID –15 +15 4 LO-MID –15 –15 This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/ oct.
Stereo input channels 5 I PRE (Pre-fader) switches These switches are used to select pre- or post-fader for signals sent from the stereo input channel to MIX buses 5–10. Each switch is effective for one pair of MIX buses:5/6, 7/8, or 9/10. When you turn these switches on, the pre-fader signals are sent to the corresponding MIX bus pair. J BAL (Balance) control This control is used to adjust the left and right balance of signals sent from the stereo input channel to the ST bus.
6 Master Section Master Section Variable/Fix select section The GA32/12 and GA24/12 feature a GA (Group/Aux) diversity function, which enables you to use the MIX bus 1–4 signals as group bus signals or AUX bus signals. This section of the console allows you to select whether you wish to use MIX buses 1–4 as group buses or AUX buses. A M1–M4 switches These switches are used to select whether the level of signals sent from the input channels to MIX buses 1–4 will be fixed (FIX) or variable (VARIABLE).
Mix section 7 ■ M1–M4 These modules function as output channels for either a group bus or an AUX bus, depending on the setting of the switches in the Variable/Fix select section. The MIX bus 1–4 signals that pass these output channels can be routed to MIX OUT 1–4 jacks, ST bus, AFL bus, and Matrixes 1/2. ■ M5–M10 These modules function as output channels for an AUX bus. The MIX bus 5–10 signals that pass these output channels can be routed to MIX OUT 5–10 jacks and AFL bus.
8 Master Section MIX MIX (FIX) (VARIABLE) PFL 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL FIX 3-Stage EQ TO ST PAN LOW f MID HIGH MIX INSERT I/O 1 MIX ST OUT 1 L R EQ g VARIABLE/FIX AFL to AFL to MTRX MIX OUT 2-4: Same as MIX OUT 1 MIX OUT 5 EQ LOW g MID HIGH f 3-Stage EQ to AFL AFL MIX OUT 6-10: Same as MIX OUT 5 Signal flow in the Variable/Fix select section and Mix section GA32/12, GA24/12—Owner’s Manual
ST (Stereo) section 9 ST (Stereo) section This section enables you to control the ST bus signals output from the ST1 OUT jacks (see page 17, rear panel 9) and ST2 OUT jacks (see page 17, rear panel J). A POST ST1 (Post stereo 1) switch POST ST1 MONO LEVEL 0 1 This switch toggles between pre- and post-fader for signals output from the ST2 OUT jacks. When you turn this switch on, signals that passed the ST fader are output from the ST2 OUT jacks.
10 Master Section AUX RETURN section The GA32/12 and GA24/12 provide four stereo AUX returns. Use the paired AUX RETURN 1–4 L/R jacks (see page 17, rear panel 8) to input stereo signals. Alternatively, connect signals only to the AUX RETURN 1–4’s L jack to use the routing as a monaural AUX return. A M1–M4 mix level controls These controls are used to route signals input from the AUX RETURN 1–2 jacks to MIX buses 1–4.
MATRIX section MIX MIX PFL (FIX) (VARIABLE) 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L CTL 1L(MONO), 2L(MONO) 11 ST LR M1 M2 ON M3 1R, 2R M4 ST AUX RETURN PFL 3L(MONO), 4L(MONO) M5 M6 ON M7 3R, 4R M8 M9 M10 ST PFL Signal flow in the AUX RETURN section MATRIX section The GA32/12 and GA24/12 provide two matrix modules that allow you to mix MIX buses 1–4 and ST bus signals at desired levels. Matrix 1–2 signals are output in monaural via the MATRIX OUT 1–2 jacks (rear panel K).
12 Master Section C-R MONI (Control room monitor) section PHONES (headphones) section This section enables you to control signals monitored via the C-R MONITOR OUT jacks (see page 18, rear panel M) and the PHONES jack on the front panel (C-R MONI section/ PHONES section 6). A Monitor source select switch PFL/AFL TAPE IN PFL LEVEL 1 2 3 0 10 4 ON C-R MONI LEVEL 0 5 10 This switch enables you to select the type of signal to monitor via the C-R MONITOR OUT jacks and the PHONES jack.
TAPE IN section 13 TAPE IN section This section enables you to control line-level signals input from the TAPE IN jacks. Input signals from the TAPE IN jacks can be routed to the ST bus or directly to the C-R MONITOR OUT jacks and PHONES jack. A ST (Stereo) control ST 0 1 10 ON TAPE IN 2 This control knob determines the level of input signals at the TAPE IN jacks that are sent to on the ST buses. B ON switch This switch turns on and off the signals sent from the TAPE IN jacks to the ST bus.
14 Master Section TALKBACK section This section is used to route talkback signals to the MIX buses and the ST bus. A INPUT jack This XLR-3-31 unbalanced input jack is used to connect a talkback microphone with an output impedance of 50–600Ω. See the figure below for wiring.
METER SELECT section 15 METER SELECT section You can select the signal source to be displayed in the Meter bridge section. A Source select switch This switch enables you to select the signal source to be displayed on the MATRIX (PFL•AFL/TAPE) meter (Meter bridge 3) in the right corner of the level meter.
16 Rear Panel Rear Panel C A C-R MONITOR OUT +4dB R 0 9 MATRIX OUT +4dB L 2 8 ST2 OUT +4dB 1 R 3 4 AUX RETURN +4dB 4L (MONO) 3L (MONO) 2L (MONO) 1L (MONO) 4R 3R 2R 1R L PHANTOM (+48V) D E R L ST INSERT I/O 0dB R TAPE IN –10dBV R ST1 OUT +4dB L MIX INSERT I/O 0dB 3 4 9 7 6 5 4 3 2 1 16R 14R 1 MIX OUT +4dB B ON 11 INSERT I/O 0dB 10 INSERT I/O 0dB 9 INSERT I/O 0dB INSERT I/O 2 OUT IN 8 12 INSERT I/O 0dB REC OUT –10dBV 10 OFF 15L (MONO) 13L (MONO) L 7
Rear Panel 17 E INPUT jacks 13–16 These are unbalanced phone jacks for the stereo input channels, with nominal input levels ranging from –34 dB to +10 dB. If you are using the stereo input modules as monaural channels, connect a plug to 13L (MONO) or 15L (MONO) jack. See the figure on the right for wiring. F MIX OUT 1–10 jacks These balanced XLR-3-32 jacks output MIX bus 1–10 signals individually, with a nominal output level of +4 dB. See the figure on the right for wiring.
18 Rear Panel L ST INSERT I/O jacks These TRS phone jacks are used to insert an external processor into the ST bus, with nominal input/output levels of 0 dB. See the figure below for wiring.
19 GA Diversity Function GA Diversity Function What is GA Diversity? GA Diversity is an output select function that allows you to use the MIX OUT jacks as group output jacks or AUX output jacks on the GA32/12 and GA24/12. You can route either MIX (Variable) bus signals or MIX (Fix) bus signals to the MIX OUT 1–4 jacks of the GA32/12 and GA24/12. You can select either one of these output signals in the Variable/Fix select section.
20 Specifications Specifications General specifications Frequency response 20 Hz–20 kHz +1 dB, –2 dB, +4 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) Total harmonic distortion <0.1% @20 Hz–20 kHz, +14 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) –128 dB equivalent input noise –95 dB residual output noise (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) Hum and noise (Rs=150Ω, 20 Hz–20 kHz) –83 dB residual output noise (ST1 OUT) ST master fader at nominal level.
Input specifications 21 Input specifications Input level Input connectors Gain trim CH INPUT 1–12, 17–24/32 MAX CH INPUT 13–16 Input impedance Nominal impedance 3 kΩ 50-600Ω Mics Connector type Sensitivity1 Nominal level Max. before clipping –86 dB (38.8 µV) –60 dB (775 µV) –40 dB (7.75 mV) MIN –42 dB (6.16 mV) –16 dB (123 mV) +4 dB (1.23 V) MAX –60 dB (775 µV) –34 dB (15.5 mV) –14 dB (155 mV) MIN –16 dB (123 mV) +10 dB (2.45 V) +30 dB (24.5 V) –12 dB (195 mV) +4 dB (1.
22 Specifications Dimensions GA32/12 500 500 186 186 W: 1372 GA24/12 172 800 172 W: 1144 Unit: mm GA32/12, GA24/12—Owner’s Manual D: 705 400 107 H: 161
–60 –50 –40 –30 –20 –10 0 +10 14/13, 16/15 Ch1-12, 17-24/32 PAD Off, GAIN Max HPF HPF Ch13-16, GAIN Max Ch1-12, 17-24/32 PAD On, GAIN Max Ch1-12, 17-24/32 PAD Off, GAIN Min 80 INSERT I/O HPF Ch13-16, GAIN Min HA HA PAD PAD GAIN 26dB Ch1-12, 17-24/32 PAD On, GAIN Min 14R, 16R 13L(MONO), 15L(MONO) 1-12, 17-24/17-32 INPUT B HA PAD Ch INSERT 4-Stage EQ f 1R, 2R 1L(MONO), 2L(MONO) 4-Stage EQ EQ HA Talkback INPUT AUX RETURN INPUT 3R, 4R 3L(MONO), 4L(MONO) AUX RETURN ø
VZ46530 R0 1 IP 28 98 01 1500 NP Printed in Taiwan YAMAHA CORPORATION P.O.
