YAMAHA GA32-12 User Manual

MIXING CONSOLE

Owner’s Manual

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.

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

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

Introduction

• 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.

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.

• 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.

GA32/12, GA24/12—Owner’s Manual

Front Panel

26dB

GAIN

+10 –34

–60–16

PEAK

HIGH

HI-MID

LO-MID

LOW

M10

PAN

PRE

PFL

+15–15

8k400

+15–15

1.6k80

+15–15

100

50 60

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.

Pad switch

This switch is used to attenuate input signals by 26 dB. Press down the switch to turn the pad on.

GAIN control

This control knob is used to adjust input sensitivity. The adjustable range is –16 dB to –60 dB when the pad switch

is turned off, and +10 dB to –34 dB when the pad switch is

turned on.

Ø (Phase) switch

This switch reverses the phase of input signals. Press down this switch to reverse the phase.

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.

PEAK indicator

This indicator lights up when the level of signals that pass the EQ reaches 3 dB below the clipping level.

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.

Band Center frequencies Type

HIGH 10 kHz shelving

HI-MID 400 Hz–8 kHz peaking (parametric)

LO-MID 80 Hz–1.6 kHz peaking (parametric)

LOW 100 Hz shelving

EQ switch

This switch is used to turn equalization on and off. Press down the switch to turn equalization on.

M1–M4 mix level controls

These controls are used to route the pre fader signals from the input channel to MIX buses 1–4.

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 the signals routed to the MIX buses will be fixed and the corresponding M1–M4 mix level controls will be disabled.

GA32/12, GA24/12—Owner’s Manual

Monaural input channels

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).

M5–M10 mix level controls

These controls route the input channel signals to MIX buses 5–10. Use the PRE switches select pre- or post-fader.

PRE switches

These switches are used to select pre- or 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.

PAN control

This control is used to set the stereo image of signals sent from the input channel to the ST (stereo) buses.

INPUT A

1-12, 17-24/17-32

INPUT B

ST (Stereo) switch

When you turn this switch on, input channel signals are sent to the ST buses.

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

will enable you to monitor the signals

via the C-R MONITOR OUT jacks or PHONES jack.

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.

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).

PHANTOM

PAD

26dB

+48V

GAIN

HPF

INSERT I/O

MIX

PEAK

PRE

4-Stage EQ

fgf

HIGH

HI-MID

LOW

LO-MID

(FIX)

M4 M5 M6 M7 M8 M9 M10

PAN

4321

1234

MIX

(VARIABLE)

1098765

PFL

CTLRL

PFL

Signal ﬂow of the monaural input channel

GA32/12, GA24/12—Owner’s Manual

Front Panel

Stereo input channels

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

) 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.

GAIN control

This control is used to adjust input sensitivity. The adjustable range is +10 dB to –34 dB.

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.

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.

GAIN

PEAK

HIGH

HI-MID

LO-MID

LOW

–34+10

+15–15

M10

BAL

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

100

PRE

100

PRE

100

PRE

100

frequencies and types shown in the following table.

Band Center frequencies Type

HIGH 10 kHz shelving

HI-MID 3 kHz peaking

LO-MID 800 Hz peaking

LOW 100 Hz shelving

EQ switch

This switch is used to turn the equalization on and off.

M1–M4 mix level controls

These controls are used to route the pre 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.

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.

PFL

50 60

GA32/12, GA24/12—Owner’s Manual

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).

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

to select pre- or post-fader.

Stereo input channels

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.

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 PHONEs jack.

M will enable you to monitor the signals via the C-R MONITOR OUT jacks or

13L(MONO), 15L(MONO)

14/13, 16/15

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).

14R, 16R

PAD

HPF

GAIN

HPF

4-Stage EQ

HIGH

HI-MID

4-Stage EQ

LOW

LO-MID

MIX

PRE

(FIX)

M4 M5 M6 M7 M8 M9 M10

BAL

PFL

PEAK

MIX

(VARIABLE)

PFL

109876512344321

CTL

PFL

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 level of the signal from each input channel will be ﬁxed,

VARIABLE / FIX

FIX

and the M1–M4 mix level controls of the input channels that correspond to the MIX buses will be disabled.

FIX

■ When FIX is off:

The selected MIX bus(es) function as an AUX bus. Signals that pass through the M1–M4 mix level controls of each input channel (see page 2, monaural input channel page 4, stereo input channel

6) are sent to the

corresponding MIX buses.

8, and

FIX

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.

HIGH

MID

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

MID

6k300

HIGH

+15–15

6k300

+15–15

MID

6k300

LOW

PAN

3 4

TO ST

GA32/12, GA24/12—Owner’s Manual

+15–15

EQ EQ EQ EQEQ

AFL

40 50

M1 M2

LOW

PAN

TO ST

+15–15

AFL

40 50

+15–15

LOW

+15–15

PAN

TO ST

AFL

40 50

M3 M4

LOW

PAN

TO ST

+15–15

AFL

LOW

+15–15

AFL

LOW

+15–15

AFL

LOW

+15–15

AFL

LOW

+15–15

AFL

LOW

+15–15

AFL

LOW

+15–15

AFL

40 50

M10

+ 18 hidden pages

YAMAHA GA32-12 User Manual

Precautions

Contents

Introduction

Features

Front Panel

Monaural input channels

Stereo input channels

Master Section

Variable/Fix select section

Mix section