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.Avoid physical shocks
Strong physical shocks to the unit can cause damage. Handle it with care.
4.Do not open the case or attempt repairs or modifications yourself
This product contains no user-serviceable parts. Refer all maintenance to qualified Yamaha service personnel. Opening the case and/or tampering with the internal circuitry voids the warranty.
5.Always power off before making connections
Always turn the power OFF before connecting or disconnecting cables. This is important to prevent damage to the unit itself as well as other connected equipment.
IMPORTANT NOTICE FOR
THE UNITED KINGDOM
Connecting the Plug and Cord
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.
6.Handle cables carefully
Always plug and unplug cables — including the AC power cord — by gripping the connector, not the cord.
7.Clean with a soft dry cloth
Never use solvents such as benzine or thinner to clean the unit. Wipe clean with a soft, dry cloth.
8.Always use the correct power supply
Make sure that the power supply voltage specified on the rear panel matches your local AC mains supply. Also make sure that the AC mains supply can deliver more than enough current to handle all equipment used in your system.
Contents |
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Introduction ....................................... |
1 |
Features.................................................................. |
1 |
Front Panel ......................................... |
2 |
Monaural input channels...................................... |
2 |
Stereo input channels............................................ |
4 |
Master Section ................................... |
6 |
Variable/Fix select section..................................... |
6 |
Mix section ............................................................ |
6 |
ST (Stereo) section ................................................ |
9 |
AUX RETURN section........................................ |
10 |
MATRIX section.................................................. |
11 |
C-R MONI (Control room monitor) section |
|
PHONES (headphones) section ......................... |
12 |
TAPE IN section.................................................. |
13 |
TALKBACK section ............................................ |
14 |
METER SELECT section..................................... |
15 |
Meter bridge ........................................................ |
15 |
Rear Panel ........................................ |
16 |
GA Diversity Function ...................... |
19 |
What is GA Diversity? ......................................... |
19 |
Setting the GA Diversity function ...................... |
19 |
Specifications ................................... |
20 |
General specifications ......................................... |
20 |
Input specifications ............................................. |
21 |
Output specifications .......................................... |
21 |
Dimensions.......................................................... |
22 |
Block and Level diagram..................................... |
23 |
GA32/12, GA24/12—Owner’s Manual
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.
Features
•The GA32/12 provides 28 monaural and 2 stereo input modules {the GA24/12 provides 20 monaural and 2 stereo input modules}. The output channels comprise stereo outputs, 10 mix outputs, and two matrix outputs, and support a wide range of applications, from SR (sound reinforcement) to facility acoustics.
•Each monaural input channel offers a 26 dB pad, HPF, phase switch, 4-band EQ (HI-MID and LOMID frequencies are variable), and a 100 mmlong full-stroke fader. Also, phantom power can be turned on and off for every group of four inputs.
•Four stereo AUX returns and TAPE IN jacks are provided as standard.
•The master section of the console is located in the center area of the unit, facilitating operation.
•The master section provides output channels for MIX buses 1–10, with EQs and 100 mm-long faders.
•Each input channel and four stereo AUX returns include a PFL switch, and stereo bus, MIX buses 1–10, and Matrix 1–2 has an AFL switch, enabling you to monitor the input/output sources quickly.
•Using the GA Diversity function enables you to set MIX buses 1–4 to Variable mode or Fix mode individually. In Variable mode, you can change the level of the signals sent out from the input channels. This routing can be used as a conventional AUX bus. In Fix mode, the level of the signals sent out from the input channels is fixed.
This routing can be used as a conventional group bus. In this way, you can configure the bus for a specific purpose.
•The console has two independent matrixes. You can mix MIX buses 1–4 and the stereo bus individually at the levels you desire and output them from the MATRIX OUT 1–2 jacks. This routing can be used as a mix for the foldback or for individual speakers and amplifiers.
•The INSERT I/O jacks are provided for all monaural input channels, the stereo bus, and MIX buses 1–4. You can insert an external effect processor, if necessary.
•Talkback signals can be sent to any of MIX buses 1–4, MIX buses 5–10, and the stereo bus.
•C-R monitor output enables you to select PFL/ AFL or TAPE IN as a monitoring source.
•The console’s sturdy finish and rugged design assure its durability even under severe conditions and rough on-site usage.
GA32/12, GA24/12—Owner’s Manual
2 Front Panel
Front Panel
5
8
0
C
GAIN |
26dB |
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+10 |
–34 |
–16 |
–60 |
PEAK |
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HIGH |
80 |
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–15 |
+15 |
HI-MID |
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400 |
8k |
–15 |
+15 |
LO-MID |
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80 |
1.6k |
–15 |
+15 |
LOW |
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–15 |
+15 |
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EQ |
M1 |
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0 |
10 |
M2 |
ON |
0 |
10 |
M3 |
ON |
0 |
10 |
M4 |
ON |
0 |
10 |
M5 |
ON |
0 |
10 |
M6 |
PRE |
0 |
10 |
M7 |
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0 |
10 |
M8 |
PRE |
0 |
10 |
M9 |
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0 |
10 |
M10 |
PRE |
0 |
10 |
PAN |
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L |
R |
ST |
ON |
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PFL |
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10 |
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5 |
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0 |
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5 |
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10 |
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20 |
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30 |
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40 |
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50 |
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60 |
1 |
Monaural input channels |
2 |
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3The 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.
4
A Pad switch
This switch is used to attenuate input signals by 26 dB. Press down the switch to turn the pad on.
B GAIN control
6This control knob is used to adjust input sensitivity. The adjustable range is –16 dB to –60 dB when the pad switch 1is turned off, and +10 dB to –34 dB when the pad switch is turned on.
C Ø (Phase) switch
7This switch reverses the phase of input signals. Press down this switch to reverse the phase.
D High pass filter switch
This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/ oct. Press down the switch to turn the high pass filter on.
E PEAK indicator
9This indicator lights up when the level of signals that pass the EQ reaches 3 dB below the clipping level.
F EQ controls (HIGH/HI-MID/LO-MID/LOW)
This 4-band equalizer provides ±15 dB of cut and boost over each range, with the center frequencies and types shown in the following table. The frequencies for HI-MID and LOMID are variable.
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Band |
Center frequencies |
Type |
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A |
HIGH |
10 kHz |
shelving |
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HI-MID |
400 Hz–8 kHz |
peaking (parametric) |
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LO-MID |
80 Hz–1.6 kHz |
peaking (parametric) |
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LOW |
100 Hz |
shelving |
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G EQ switch |
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This switch is used to turn equalization on and off. Press down the switch to turn
Bequalization on.
DH M1–M4 mix level controls
These controls are used to route the post fader signals from the input channel to MIX
buses 1–4.
E
Note: When you press down the M1–M4 switches to the FIX position in the Variable/ Fix select section (see page 6), the output level of the signals routed to the MIX buses will be fixed and the corresponding M1–M4 mix level controls will be disabled.
F
GA32/12, GA24/12—Owner’s Manual
Monaural input channels |
3 |
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 Kto select preor post-fader.
K PRE switches
These switches are used to select preor post-fader for signals sent from the 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 will be sent to the corresponding MIX bus pair.
L PAN control
This control is used to set the stereo image of signals sent from the input channel to the ST (stereo) buses.
M ST (Stereo) switch
When you turn this switch on, input channel signals are sent to the ST buses.
N ON switch
This switch is used to turn on and off the corresponding input channel module. When this switch is turned off, no signals are sent from the corresponding input channel to the ST buses and MIX buses 1–10. However, using the PFL switch Owill enable you to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack.
O PFL (Pre-fader Listen) switch
When you turn this switch on, the pre-fader signals of the input channel are routed to the PFL bus, and you are able to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack.
P Channel fader
This fader is used to adjust the level of the input channel signals. This fader setting affects the level of the signals routed to the ST buses, MIX buses 1–4, and MIX buses 5–8 (when the PRE switches are turned off).
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+48V |
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PHANTOM |
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PEAK |
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INPUT A |
PAD |
HA |
HPF |
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4-Stage EQ |
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1-12, |
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ø |
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80 |
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EQ |
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17-24/17-32 |
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INPUT B |
26dB |
GAIN |
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f g |
f g |
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HIGH |
HI-MID |
LO-MID |
LOW |
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INSERT I/O |
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ON |
PFL |
MIX |
MIX |
PFL |
ST |
(FIX) |
(VARIABLE) |
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1 2 3 4 1 2 3 4 5 6 7 8 910 L R CTL |
L R |
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ON |
M1 |
ON |
M2 |
ON |
M3 |
ON |
M4 |
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M5 |
PRE |
M6 |
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M7 |
PRE |
M8 |
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M9 |
PRE |
M10 |
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ST PAN |
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Signal flow of the monaural input channel
GA32/12, GA24/12—Owner’s Manual
4 Front Panel
Stereo input channels
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GAIN |
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+10 |
–34 |
1 |
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2 |
PEAK |
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3 |
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80 |
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HIGH |
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–15 |
+15 |
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HI-MID |
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–15 |
+15 |
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LO-MID |
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4 |
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–15 |
+15 |
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LOW |
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–15 |
+15 |
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EQ |
5 |
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M1 |
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0 |
10 |
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M2 |
ON |
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6 |
0 |
10 |
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M3 |
ON |
7 |
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0 |
10 |
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M4 |
ON |
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0 |
10 |
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M5 |
ON |
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0 |
10 |
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M6 |
PRE |
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0 |
10 |
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M7 |
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8 |
0 |
10 |
9 |
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M8 |
PRE |
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0 |
10 |
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M9 |
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0 |
10 |
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M10 |
PRE |
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0 |
10 |
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BAL |
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L |
R |
0 |
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A |
ST |
ON |
B |
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PFL |
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C |
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10 |
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5 |
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0 |
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5 |
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10 |
D |
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20 |
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30 |
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40 |
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50 |
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60 |
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The GA32/12 and GA24/12 provide two stereo input channel modules. Use the paired INPUT 13/14 and 15/16 jacks (see page 17, rear panel 5) to input stereo signals. If you connect signals only to the 13L (MONO) jack or 15L (MONO) jack, the same signal will be sent t the o M1–4 and ST buses.
A GAIN control
This control is used to adjust input sensitivity. The adjustable range is +10 dB to –34 dB.
B PEAK indicator
This indicator lights up when the level of signals that have been processed by the EQ reaches 3 dB below the clipping level.
C High pass filter switch
This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/ oct.
D EQ controls (HIGH/HI-MID/LO-MID/LOW)
This 4-band equalizer provides ±15 dB of cut and boost over each range, with the center frequencies and types shown in the following table.
Band |
Center frequencies |
Type |
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HIGH |
10 kHz |
shelving |
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HI-MID |
3 kHz |
peaking |
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LO-MID |
800 Hz |
peaking |
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LOW |
100 Hz |
shelving |
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E EQ switch
This switch is used to turn the equalization on and off.
F M1–M4 mix level controls
These controls are used to route the post fader signals from the stereo input channel to MIX buses 1–4. When stereo signals are input, the L channel signal will be sent to MIX buses 1, 3, and the R channel signal will be sent to MIX buses 2 and 4.
Note: When you press down the M1–M4 switches to the FIX position in the Variable/ Fix select section (see page 6), the output level of signals sent to the MIX buses will be fixed and the corresponding M1–M4 mix level controls will be disabled.
G ON switches (M1–M4)
These switches are used to turn on and off the signals routed from the stereo input channel to MIX buses 1–4.
Note: When these switches are set to off, no signals are sent from the stereo input channel to the corresponding MIX buses regardless of the setting of the switches in the Variable/Fix select section (see page 6).
H M5–M10 mix level controls
These control knobs route the stereo input channel signals to MIX buses 5–10. Stereo input signals are mixed into a monaural signal and sent to MIX buses 5–10. Use the PRE switches 9to select preor post-fader.
GA32/12, GA24/12—Owner’s Manual
Stereo input channels |
5 |
I PRE (Pre-fader) switches
These switches are used to select preor 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.
K ST (Stereo) switch
When you turn this switch on, the stereo input channel signals will be sent to the ST bus. If you connect monaural signals to the 13L (MONO) jack or 15L (MONO) jack (see page 17, rear panel 5), the same signals will be sent to both L and R channels.
L ON switch
This switch is used to turn on and off the corresponding stereo input channel. When this switch is turned off, no signals are sent to the ST bus and MIX buses 1–10. However, using the PFL switch Mwill enable you to monitor the signals via the C-R MONITOR OUT jacks or PHONEs jack.
M PFL (Pre-fader listen) switch
When you turn this switch on, the pre-fader signals of the stereo input channel are routed to the PFL bus, and you can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack.
N Channel fader
This fader is used to adjust the level of the stereo input channel signals. This fader setting affects the level of the signals routed to the ST bus, MIX buses 1–4, and MIX buses 5–8 (when the PRE switches are turned off).
13L(MONO),
15L(MONO)
14/13,
16/15
14R,
16R
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MIX |
MIX |
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(FIX) |
(VARIABLE) |
PFL |
ST |
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PFL |
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1 2 3 4 1 2 3 4 5 6 7 8 910 L R CTL |
L R |
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PAD |
HA |
HPF |
4-Stage EQ |
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GAIN |
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HIGH |
MID-HI |
MID-LO |
LOW |
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PEAK |
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ON |
M1 |
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80 |
EQ |
ON |
ON |
M2 |
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PAD |
HA |
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ON |
M3 |
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HPF |
4-Stage EQ |
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ON |
M4 |
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PRE M5 |
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M6 |
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PRE M7 |
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M8 |
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PRE M9 |
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M10 |
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ST |
BAL |
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PFL |
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Signal flow of the stereo input channel
GA32/12, GA24/12—Owner’s Manual
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).
■ When FIX is on:
The selected MIX bus(es) function as a group bus. The |
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VARIABLE / FIX |
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M1 |
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level of the signal from each input channel will be fixed, |
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FIX |
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and the M1–M4 mix level controls of the input channels |
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M2 |
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that correspond to the MIX buses will be disabled. |
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FIX |
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■ When FIX is off: |
1 |
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M3 |
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The selected MIX bus(es) function as an AUX bus. Signals |
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FIX |
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that pass through the M1–M4 mix level controls of each |
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M4 |
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input channel (see page 2, monaural input channel 8, and |
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FIX |
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page 4, stereo input channel 6) are sent to the |
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corresponding MIX buses. |
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Mix section
This section consists of the output channels that handle MIX bus 1–10 signals individually. Signals that pass these output channels are output from MIX OUT 1–10 jacks (see page 17, rear panel 6), and also routed to the AFL bus. MIX bus 1–4 signals are also routed to the ST bus and Matrixes 1/2.
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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HIGH |
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1 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
1 |
MID |
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MID |
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MID |
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MID |
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MID |
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MID |
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MID |
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MID |
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MID |
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MID |
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300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
300 |
6k |
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–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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LOW |
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2 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
–15 |
+15 |
2 |
|
PAN |
EQ |
PAN |
EQ |
PAN |
EQ |
PAN |
EQ |
|
EQ |
|
EQ |
|
EQ |
|
EQ |
|
EQ |
|
EQ |
|
3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
L |
R |
L |
R |
L |
R |
L |
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
TO ST |
|
TO ST |
|
TO ST |
|
TO ST |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
AFL |
AFL |
AFL |
AFL |
AFL |
AFL |
AFL |
AFL |
AFL |
AFL |
5 |
|
|
|
|
|
|
|
|
|
|
||
|
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
|
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
|
|
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
|
6 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
6 |
|
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
|
|
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
|
|
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 |
|
|
M1 |
M2 |
M3 |
M4 |
M5 |
M6 |
M7 |
M8 |
M9 |
M10 |
|
GA32/12, GA24/12—Owner’s Manual
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