Yamaha MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner's Manual MG20XU/MG20 Mg20xu En Om E0

[5.4MB] mg20xu_en_om_e0 Manual Library - Yamaha - United States

[5.4MB] mg20xu_en_om_e0 Manual Library - Yamaha - United States

User Manual: Yamaha MG20XU/MG20 Owner's Manual

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Page Count: 40

EN

Owner’s Manual

Precautions pages 5, 6

Quick Start Guide pages 9 to 11

Troubleshooting pages 29 to 31

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 3

The above warning is located on the rear of the unit.

L’avertissement ci-dessus est situé à l’arrière de l’appareil.

Explanation of Graphical Symbols

Explication des symboles

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated

“dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

L’éclair avec une flèche à l’intérieur d’un triangle équilatéral est destiné à attirer l’attention de l’utilisateur sur la présence d’une « ten-

sion dangereuse » non isolée à l’intérieur de l’appareil, pouvant être suffisamment élevée pour constituer un risque d’électrocution.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance

(servicing) instructions in the literature accompanying the product.

Le point d’exclamation à l’intérieur d’un triangle équilatéral est destiné à attirer l’attention de l’utilisateur sur la présence d’instructions

importantes sur l’emploi ou la maintenance (réparation) de l’appareil dans la documentation fournie.

IMPORTANT SAFETY

INSTRUCTIONS

1 Read these instructions.

2 Keep these instructions.

3 Heed all warnings.

4 Follow all instructions.

5 Do not use this apparatus near water.

6 Clean only with dry cloth.

7 Do not block any ventilation openings. Install in accordance with

the manufacturer’s instructions.

8 Do not install near any heat sources such as radiators, heat regis-

ters, stoves, or other apparatus (including amplifiers) that produce

heat.

9 Do not defeat the safety purpose of the polarized or grounding-type

plug. A polarized plug has two blades with one wider than the other.

A grounding type plug has two blades and a third grounding prong.

The wide blade or the third prong are provided for your safety. If the

provided plug does not fit into your outlet, consult an electrician for

replacement of the obsolete outlet.

10 Protect the power cord from being walked on or pinched particu-

larly at plugs, convenience receptacles, and the point where they

exit from the apparatus.

11 Only use attachments/accessories specified by the manufacturer.

12 Use only with the cart, stand, tripod, bracket,

or table specified by the manufacturer, or sold

with the apparatus. When a cart is used, use

caution when moving the cart/apparatus com-

bination to avoid injury from tip-over.

13 Unplug this apparatus during lightning storms

or when unused for long periods of time.

14 Refer all servicing to qualified service personnel. Servicing is

required when the apparatus has been damaged in any way, such as

power-supply cord or plug is damaged, liquid has been spilled or

objects have fallen into the apparatus, the apparatus has been

exposed to rain or moisture, does not operate normally, or has been

dropped.

(UL60065_03)

PRÉCAUTIONS CONCER-

NANT LA SÉCURITÉ

1 Lire ces instructions.

2 Conserver ces instructions.

3 Tenir compte de tous les avertissements.

4 Suivre toutes les instructions.

5 Ne pas utiliser ce produit à proximité d’eau.

6 Nettoyer uniquement avec un chiffon propre et sec.

7 Ne pas bloquer les orifices de ventilation. Installer l’appareil confor-

mément aux instructions du fabricant.

8 Ne pas installer l’appareil à proximité d’une source de chaleur

comme un radiateur, une bouche de chaleur, un poêle ou tout autre

appareil (y compris un amplificateur) produisant de la chaleur.

9 Ne pas modifier le système de sécurité de la fiche polarisée ou de la

fiche de terre. Une fiche polarisée dispose de deux broches dont

une est plus large que l’autre. Une fiche de terre dispose de deux

broches et d’une troisième pour le raccordement à la terre. Cette

broche plus large ou cette troisième broche est destinée à assurer

la sécurité de l’utilisateur. Si la fiche équipant l’appareil n’est pas

compatible avec les prises de courant disponibles, faire remplacer

les prises par un électricien.

10 Acheminer les cordons d’alimentation de sorte qu’ils ne soient pas

piétinés ni coincés, en faisant tout spécialement attention aux

fiches, prises de courant et au point de sortie de l’appareil.

11 Utiliser exclusivement les fixations et accessoires spécifiés par le

fabricant.

12 Utiliser exclusivement le chariot, le stand, le

trépied, le support ou la table recommandés

par le fabricant ou vendus avec cet appareil.

Si l’appareil est posé sur un chariot, déplacer

le chariot avec précaution pour éviter tout ris-

que de chute et de blessure.

13 Débrancher l’appareil en cas d’orage ou

lorsqu’il doit rester hors service pendant une période prolongée.

14 Confier toute réparation à un personnel qualifié. Faire réparer

l’appareil s’il a subi tout dommage, par exemple si la fiche ou le cor-

don d’alimentation est endommagé, si du liquide a coulé ou des

objets sont tombés à l’intérieur de l’appareil, si l’appareil a été

exposé à la pluie ou à de l’humidité, si l’appareil ne fonctionne pas

normalement ou est tombé.

(UL60065_03)

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

AVERTISSEMENT

POUR RÉDUIRE LES RISQUES D’INCENDIE OU DE DÉCHARGE

ÉLECTRIQUE, N’EXPOSEZ PAS CET APPAREIL À LA PLUIE OU À

L’HUMIDITÉ.

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

4

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED IMPOR-

TANT. 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 con-

nected to the terminal in the plug which is marked by the letter E

or by the safety earth symbol or colored GREEN or GREEN-

and-YELLOW.

The wire which is coloured BLUE must be connected to the ter-

minal 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.

(3 wires)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions

contained in this manual, meets FCC requirements. Modifica-

tions not expressly approved by Yamaha may void your

authority, granted by the FCC, to use the product.

2. IMPORTANT: When connecting this product to accessories

and/or another product use only high quality shielded cables.

Cable/s supplied with this product MUST be used. Follow all

installation instructions. Failure to follow instructions could

void your FCC authorization to use this product in the USA.

3. NOTE: This product has been tested and found to comply

with the requirements listed in FCC Regulations, Part 15 for

Class “B” digital devices. Compliance with these require-

ments provides a reasonable level of assurance that your use

of this product in a residential environment will not result in

harmful interference with other electronic devices. This equip-

ment generates/uses radio frequencies and, if not installed

and used according to the instructions found in the users

manual, may cause interference harmful to the operation of

other electronic devices. Compliance with FCC regulations

does not guarantee that interference will not occur in all

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)

installations. If this product is found to be the source of inter-

ference, which can be determined by turning the unit “OFF”

and “ON”, please try to eliminate the problem by using one of

the following measures:

Relocate either this product or the device that is being

affected by the interference.

Utilize power outlets that are on different branch (circuit

breaker or fuse) circuits or install AC line filter/s.

In the case of radio or TV interference, relocate/reorient the

antenna. If the antenna lead-in is 300 ohm ribbon lead,

change the lead-in to co-axial type cable.

If these corrective measures do not produce satisfactory

results, please contact the local retailer authorized to distrib-

ute this type of product. If you can not locate the appropriate

retailer, please contact Yamaha Corporation of America,

Electronic Service Division, 6600 Orangethorpe Ave, Buena

Park, CA90620

The above statements apply ONLY to those products distrib-

uted by Yamaha Corporation of America or its subsidiaries.

FCC INFORMATION (U.S.A.)

(weee_eu_en_02)

Information for users on collection and disposal of old equipment:

This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic

products should not be mixed with general household waste.

For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in accor-

dance with your national legislation.

By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative

effects on human health and the environment which could otherwise arise from inappropriate waste handling.

For more information about collection and recycling of old products, please contact your local municipality, your waste

disposal service or the point of sale where you purchased the items.

For business users in the European Union:

If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information.

Information on Disposal in other Countries outside the European Union:

This symbol is only valid in the European Union. If you wish to discard these items, please contact your local authorities

or dealer and ask for the correct method of disposal.

이 기기는 가정용(B급) 전자파적합기기로서 주로 가정에서 사용

하는 것을 목적으로 하며, 모든 지역에서 사용할 수 있습니다.

(class b korea)

COMPLIANCE INFORMATION STATEMENT

(DECLARATION OF CONFORMITY PROCEDURE)

Responsible Party : Yamaha Corporation of America

Address : 6600 Orangethorpe Ave., Buena Park,

Calif. 90620

Telephone : 714-522-9011

Type of Equipment : Mixing Console

Model Name : MG20XU/MG16XU/MG12XU

This device complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions:

1) this device may not cause harmful interference, and

2) this device must accept any interference received including

interference that may cause undesired operation.

See user manual instructions if interference to radio reception is

suspected.

* This applies only to products distributed by

YAMAHA CORPORATION OF AMERICA.

(FCC DoC)

In Finland: Laite on liitettävä suojamaadoituskoskettimilla var-

ustettuun pistorasiaan.

In Norway: Apparatet må tilkoples jordet stikkontakt.

In Sweden: Apparaten skall anslutas till jordat uttag.

(class I hokuo)

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 5

PRECAUTIONS

PLEASE READ CAREFULLY

BEFORE PROCEEDING

Please keep this manual in a safe place for

future reference.

WARNING

Always follow the basic precautions listed below to

avoid the possibility of serious injury or even death

from electrical shock, short-circuiting, damages, fire or

other hazards. These precautions include, but are not

limited to, the following:

Power supply/power cord

• Do not place the power cord near heat sources such as

heaters or radiators, and do not excessively bend or

otherwise damage the cord, place heavy objects on it, or

place it in a position where anyone could walk on, trip over,

or roll anything over it.

• Only use the voltage specified as correct for the device. The

required voltage is printed on the name plate of the device.

• Use only the supplied power cord/plug.

If you intend to use the device in an area other than in the

one you purchased, the included power cord may not be

compatible. Please check with your Yamaha dealer.

• Check the electric plug periodically and remove any dirt or

dust which may have accumulated on it.

• Be sure to connect to an appropriate outlet with a protective

grounding connection. Improper grounding can result in

electrical shock, damage to the device(s), or even fire.

Do not open

• This device contains no user-serviceable parts. Do not open

the device or attempt to disassemble the internal parts or

modify them in any way. If it should appear to be

malfunctioning, discontinue use immediately and have it

inspected by qualified Yamaha service personnel.

Water warning

• Do not expose the device to rain, use it near water or in

damp or wet conditions, or place on it any containers (such

as vases, bottles or glasses) containing liquids which might

spill into any openings. If any liquid such as water seeps

into the device, turn off the power immediately and unplug

the power cord from the AC outlet. Then have the device

inspected by qualified Yamaha service personnel.

• Never insert or remove an electric plug with wet hands.

Fire warning

• Do not put burning items, such as candles, on the unit.

A burning item may fall over and cause a fire.

If you notice any abnormality

• When one of the following problems occur, immediately turn

off the power switch and disconnect the electric plug from

the outlet. Then have the device inspected by Yamaha

service personnel.

- The power cord or plug becomes frayed or damaged.

- It emits unusual smells or smoke.

- Some object has been dropped into the device.

- There is a sudden loss of sound during use of the device.

• If this device should be dropped or damaged, immediately

turn off the power switch, disconnect the electric plug from

the outlet, and have the device inspected by qualified

Yamaha service personnel.

CAUTION

Always follow the basic precautions listed below to

avoid the possibility of physical injury to you or others,

or damage to the device or other property. These

precautions include, but are not limited to, the following:

Power supply/power cord

• When removing the electric plug from the device or an

outlet, always hold the plug itself and not the cord. Pulling

by the cord can damage it.

• Remove the electric plug from the outlet when the device is

not to be used for extended periods of time, or during

electrical storms.

Location

• Do not place the device in an unstable position where it

might accidentally fall over.

• Do not block the vents. This device has ventilation holes at

the bottom/sides to prevent the internal temperature from

becoming too high. In particular, do not place the device on

its side or upside down. Inadequate ventilation can result in

overheating, possibly causing damage to the device(s), or

even fire.

• Do not place the device in a location where it may come into

contact with corrosive gases or salt air. Doing so may result

in malfunction.

• Before moving the device, remove all connected cables.

• When setting up the device, make sure that the AC outlet

you are using is easily accessible. If some trouble or

malfunction occurs, immediately turn off the power switch

and disconnect the plug from the outlet. Even when the

power switch is turned off, electricity is still flowing to the

product at the minimum level. When you are not using the

product for a long time, make sure to unplug the power cord

from the wall AC outlet.

• When rackmounting the device, always use two or more

people. Attempting to lift the device by yourself may

damage your back, result in other injury, or cause damage

to the device itself.

• If the device is mounted in an EIA standard rack, carefully

read the section “Precautions for Rack Mounting” on page

35. Inadequate ventilation can result in overheating,

possibly causing damage to the device(s), malfunction, or

even fire.

Connections

• Before connecting the device to other devices, turn off the

power for all devices. Before turning the power on or off for

all devices, set all volume levels to minimum.

PA_en_2 1/2

Precautions

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

6

Maintenance

• Remove the power plug from the AC outlet when cleaning

the device.

Handling caution

• Do not insert your fingers or hands in any gaps or openings

on the device (vents).

• Avoid inserting or dropping foreign objects (paper, plastic,

metal, etc.) into any gaps or openings on the device (vents).

If this happens, turn off the power immediately and unplug

the power cord from the AC outlet. Then have the device

inspected by qualified Yamaha service personnel.

• Do not rest your weight on the device or place heavy

objects on it, and avoid use excessive force on the buttons,

switches or connectors.

• Do not use speakers or headphones for a long period of

time at a high or uncomfortable volume level, since this can

cause permanent hearing loss. If you experience any

hearing loss or ringing in the ears, consult a physician.

NOTICE

To avoid the possibility of malfunction/damage to the product, damage to data, or damage to other property, follow the notices

below.

 Handling and Maintenance

• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other electric devices. Otherwise, the

device, TV, or radio may generate noise.

• Do not expose the device to excessive dust or vibration, or extreme cold or heat (such as in direct sunlight, near a heater, or

in a car during the day), in order to prevent the possibility of panel disfiguration, unstable operation, or damage to the inter-

nal components.

• Do not place vinyl, plastic or rubber objects on the device, since this might discolor the panel.

• When cleaning the device, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning fluids, or chemical-impreg-

nated wiping cloths.

• Condensation can occur in the device due to rapid, drastic changes in ambient temperature—when the device is moved

from one location to another, or air conditioning is turned on or off, for example. Using the device while condensation is

present can cause damage. If there is reason to believe that condensation might have occurred, leave the device for several

hours without turning on the power until the condensation has completely dried out.

• Avoid setting all equalizer controls and faders to their maximum. Depending on the condition of the connected devices,

doing so may cause feedback and may damage the speakers.

• Do not apply oil, grease, or contact cleaner to the faders. Doing so may cause problems with electrical contact or fader motion.

• When turning on the AC power in your audio system, always turn on the power amplifier LAST, to avoid speaker damage.

When turning the power off, the power amplifier should be turned off FIRST for the same reason.

• Always turn the power off when the device is not in use.

 Connectors

XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-).

Information

 About this manual

• The illustrations as shown in this manual are for instructional purposes only, and may appear somewhat different from those

on your device.

• Steinberg and Cubase are registered trademarks of Steinberg Media Technologies GmbH.

• The company names and product names in this manual are the trademarks or registered trademarks of their respective

companies.

• This manual covers the MG20XU/MG20, MG16XU/MG16, and MG12XU/MG12 mixing consoles. In cases where different

features need to be described for each model, the features for the MG16XU/MG16 and MG12XU/MG12 will be enclosed in

brackets. (Example: CH13/14 – 19/20 {CH9/10 – 15/16} {CH1 – 7/8})

• In this manual, the term “MG” refers to all models collectively. The term “XU models” refers to the MG20XU, MG16XU, and

MG12XU.

• Throughout this manual, all panel illustrations show the panel of the MG16XU, unless noted otherwise.

Yamaha cannot be held responsible for damage caused

by improper use or modifications to the device, or data

that is lost or destroyed.

The model number, serial number, power requirements, etc., may be found on or near the name plate, which is at

the rear of the unit. You should note this serial number in the space provided below and retain this manual as a per-

manent record of your purchase to aid identification in the event of theft.

Model No.

Serial No.

(rear_en_01)

PA_en_2 2/2

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 7

Thank you for purchasing the Yamaha MG20XU/MG20/MG16XU/MG16/

MG12XU/MG12 mixing console. Please read this manual thoroughly to get the

most out of the product and ensure long-term, trouble-free use. After reading

this manual, please keep it available for future reference.

Contents

Precautions..................................... 5

Contents......................................... 7

Main Features .................................. 8

Quick Start Guide .............................. 9

Step 1 Preparing the Power Supply..................9

Step 2 Making Connections ..............................9

Step 3 Powering Up the System........................9

Step 4 Getting Sound to the Speakers ...........10

Step 5 Using the Built-in Effects

(XU Models Only) ..................................11

Setup............................................12

Setup Examples ................................................12

Controls and Connectors ....................14

Front Panel.........................................................14

Rear Panel..........................................................15

Input Channel Block .........................................16

Built-in Effects Block (XU Models Only) .........22

Master Block......................................................24

Power Block.......................................................27

USB Block (XU Models Only)...........................28

Troubleshooting ...............................29

When No Sound Is Output ...............................29

Other ..................................................................31

Appendix....................................... 32

General Specifications..................................... 32

Effect Programs................................................ 33

Jack and Connector List.................................. 34

Connector Types .............................................. 34

Rack Mounting.................................................. 35

Index.................................................................. 36

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

8

Main Features

D-PRE and High-Quality Operational Amplifiers

Mono input channels are equipped with “D-PRE” Class-A discrete microphone preamplifiers. The D-PRE head amplifier

features an inverted Darlington circuit used in high-end audio devices. This circuit uses multi-stage amplifying elements to

ensure high current and low impedance, for an audio texture with crispness and richness in the low and mid frequencies.

Combined with the specially-designed “MG01” operational amp, the overall result is full-bodied reproduction of low fre-

quencies as well as sustained high frequencies. Input channels feature combo jacks, which can accept both XLR and TRS

connectors. In addition, PAD circuitry allows line level input, to accommodate a wide variety of instruments.

Improved Convenience with Built-in Universal Switching Power Supply

The MG series features a universal switching power supply. This power supply supports input voltages of 100 V to 240 V,

for stable operation even in environments where power voltage fluctuates easily. Lowering the impedance of the power sup-

ply has resulted in improved sound quality with a faster attack. An AC inlet allows simple installation in environments

where portability is required, as well as when mounting the mixing console in a rack.

24 High-Quality Digital Effects (XU Models)

The XU models (MG20XU/MG16XU/MG12XU) feature 24 built-in effects that are based on SPX algorithms used by pro-

fessionals. In particular, the high-quality reverb and delay expand the spatial quality of the sound with remarkable realism

and naturalness.

24-bit/192 kHz USB Audio Interface (XU Models)

The XU models (MG20XU/MG16XU/MG12XU) feature a USB 2.0 audio interface capable of 24-bit/192 kHz sound qual-

ity. With the audio interface you can play back music from your computer, or use DAW software such as Cubase AI to

record the mixer output. The XU models support USB Audio Class 2.0 so you can use them with USB Audio Class 2.0

compliant tablets and other devices, without the need to install drivers. The USB protocol uses asynchronous data transfer.

Audio data is transferred based on a highly precise audio clock signal from the MG, for high quality recording and play-

back.

Accessories (Please check that they are included with your mixing console.)

• AC Power Cord

• Rack-Mount Kit (The RK-MG12 for the MG12XU/MG12 is sold separately.)

• Cubase AI Download Information (XU models):

Contains the access code necessary for downloading the Steinberg DAW software “Cubase AI”.

Visit the following Yamaha website for details on downloading and installing Cubase AI, and making necessary set-

tings.

http://www.yamahaproaudio.com/mg_xu/

• Technical Specifications (English only):

Includes general specifications, input/output characteristics, dimensions, as well as a block diagram and level dia-

gram.

• Owner’s Manual (this book)

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 9

Quick Start Guide

We’ll begin this guide by connecting a pair of speakers and generating some stereo output. Note that the operations

and procedures will vary somewhat according to the input devices you are using.

Step 1 Preparing the Power Sup-

ply

1. Make sure that the power switch of the unit is

set to the “ ” position (off).

2. Connect the socket of the included power cord

to the [AC IN] jack on the rear panel.

3. Plug the power cord into a power outlet.

Step 2 Making Connections

1. Turn all the faders and [GAIN] knobs com-

pletely down.

2. Connect the microphones, instruments, and/or

speakers you intend to use.

For details on making connections, see “Setup Examples”

(pages 12 – 13), “Front Panel” and “Rear Panel” (pages 14 –

15).

Step 3 Powering Up the System

To prevent an unwanted burst of noise from the

speakers, power up the devices in the following

order: peripheral devices (instruments, micro-

phones, etc.)  mixing console  power amps

(or powered speakers).

Reverse this order when turning the power off.

WARNING

Be sure to turn the power on/off in the order given in Step 3

above every time you use the mixer. Failure to do so may

result in loud noise bursts that can damage your equipment,

your ears, or both.

NOTICE

If you are using condenser microphones that require phantom

power, turn the mixer’s [PHANTOM +48V] switch on before

turning on the power to the power amps or powered speakers.

See page 17 for details. Also, read the details about the

[PHANTOM +48V] switch on page 17 before turning the switch

on.

• Power switch (rear panel)

• [AC IN] jack (rear panel)

[GAIN] knobs

Faders

MG20XU MG16XU MG12XU

Quick Start Guide

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

10

Step 4 Getting Sound to the Speakers

1. Turn on ( ) the [PFL] switches for each chan-

nel you are using.

NOTE

• When you turn on the [PFL] switch for a channel, you can

monitor the signal for that channel through headphones con-

nected to the [Phones] jack. The level of the signal is also

shown on the level meter indicator, allowing you to more

accurately check signal levels. After checking levels, turn the

[PFL] switches off.

• When a [PFL] switch is turned on, the [PFL] indicator below

the level meter flashes.

2. While playing your instrument or speaking into

a microphone, adjust the input signal with the

[GAIN] knob until it goes past the “0” (<) posi-

tion on the level meter only occasionally.

NOTE

If you connect a portable audio player, synthesizer, or other

equipment to a stereo input channel that has no [GAIN] knob,

adjust the output level on the connected device.

3. Turn on ( ) the [ON] switches for each chan-

nel you are using.

4. Turn on ( ) the [ST] switches for each chan-

nel you are using.

5. Turn off ( ) all [PFL] switches.

Confirm that the [PFL] indicator below the level meter is off.

6. Turn on ( ) the [ON] switch for the [STEREO]

master.

7. Raise the [STEREO] master fader to the “0”

position.

8. Set the channel faders to create the desired

initial balance.

9. Adjust the overall volume of the [STEREO]

master fader.

The overall headphone level is adjusted by the [PHONES]

knob.

NOTE

If the level meter [PEAK] indicator lights frequently, slightly

lower the channel faders to avoid distortion.

[GAIN] knobs

Channel [ON] switches

Channel [ST] switches

Channel [PFL] switches [STEREO] master fader

[PHONES] jack

Level meter [PEAK] indicator

Level meter

[PFL] indicator

[PHONES] knob

[STEREO] master [ON] switch

Channel faders

Adjusting Tone and Level

• Equalizer ([HIGH]/[MID]/[LOW]) ............................... page 18

• [COMP] knobs.......................................................... page 17

• [GAIN] knobs ............................................................ page 17

• Channel faders......................................................... page 19

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 11

Quick Start Guide

Step 5 Using the Built-in Effects (XU Models Only)

1. Turn the [PROGRAM] knob to select the

desired effect, and then press the knob to

enable it.

The selected effect program number flashes in the display.

For details about available effects, see the Effect Programs on

page 33.

2. Turn on ( ) the [ON] switch for [FX RTN].

3. Turn on ( ) the [ST] switch for [FX RTN].

4. Raise the [FX RTN] fader to the “0” position.

5. Use the [AUX (2, 4)/FX] knobs to adjust the

effect depth for each channel.

6. Use the [FX RTN] fader to adjust the overall

effect depth of the selected effect.

You can use the [PARAMETER] knob (page 23) to adjust

effect parameters such as reverb time and delay time. For

details about the parameters of each effect that can be

adjusted with the [PARAMETER] knob, see page 33.

[AUX (2, 4)/FX] knobs

Display

[PROGRAM] knob*

[PARAMETER] knob*

[ON] switch for [FX RTN]

[ST] switch for [FX RTN]

[FX RTN] fader

(The MG20XU has an [FX RTN LEVEL] knob.)

* The [PROGRAM] knob and

[PARAMETER] knob on the

MG20XU are in slightly different

locations than shown here.

Using Reverb and Delay

Your mixes can be further enhanced by using the built-in ambience effects such as reverb or delay.

Reverb and Delay Time

The optimum reverb time for a piece of music will depend on the music’s tempo and density, but as a general rule longer reverb times

are good for ballads, while shorter reverb times are more suited to up-tempo tunes. Delay times can be adjusted to create a wide vari-

ety of repeating rhythmic effects. When adding a delay to a vocal, for example, try setting the delay time to dotted eighth notes ( e. )

corresponding to the tune’s tempo.

Reverb Level

While working for many hours on a mix, your sense of hearing will start to dull slightly. This can lead to the perception that tracks with

excess processing sound like the perfect mix. To avoid falling into this trap, start with reverb level all the way down, then gradually bring

the reverb into the mix until you can just hear the difference. Any more than this normally becomes a special effect or, worse yet,

makes the sound muddy and indistinct. In general, you don’t want reverb to dominate the mix, so you should apply it judiciously.

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

12

Setup

DI

Setup Examples

1. Sound Reinforcement for Live Performance

Front Panel

NOTE

On the MG20XU/MG20, the [SEND] jack, [GROUP OUT] jack,

[MONITOR OUT], jack, and [STEREO OUT] jack are located on

the rear panel.

Drum

Bass guitar

Microphones

 3

Electric acoustic

guitar

Electric guitar

Microphones

 2

Powered speakers

(for musician monitoring)

Powered speakers

(main)

Mono input jacks accept both XLR

connectors and phone connectors.

Synthesizer

Foot switch

(Yamaha FC5)

(The [FOOT SW] jack

is on XU models only.)

Portable audio player

Headphones

Rear Panel

Computer (for music

playback and/or recording)

(The [USB 2.0] jack is

on XU models only.)

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 13

Setup

2. For Events and Parties

Front Panel

NOTE

On the MG20XU/MG20, the [SEND] jack, [GROUP OUT] jack,

[MONITOR OUT], jack, and [STEREO OUT] jack are located on

the rear panel.

Power amp

Microphones DVD player (voice) Powered speakers

Headphones

CD player

Speakers

Rear Panel

Computer (for music

playback and/or recording)

(The [USB 2.0] jack is

on XU models only.)

DJ mixer

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

14

Controls and Connectors

Front Panel

The number and locations of jacks and controls vary slightly by model. Carefully check the name indicated near each jack and control

while referring to this manual.

Mono input channels (page 16)

Mono/stereo input channels (page 16)

Stereo input channels (page 16)

Master block jacks

(page 24)

• The master block jacks on

the MG16XU/MG16/

MG12XU/MG12 are all

located on the front panel.

• The master block jacks on

the MG20XU/MG20 are all

located on the rear panel,

except the [PHONES] jack.

[MONITOR] section

(page 25)

[SEND MASTER] section

(page 26)

[GROUP] section

(page 26)

[STEREO] section

(page 27)

Input Channel Block (pages 16–21)

Built-in Effects Block (XU models only) (pages 22–23)

Master Block (pages 24–27)

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 15

Controls and Connectors

Rear Panel

Power Block (page 27) USB Block (XU models only) (page 28)

Master Block Master block jacks (page 24)

The master block jacks on the MG20XU/MG20 are all

located on the rear panel, except the [PHONES] jack.

MG20XU

MG16XU

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

16

Input Channel Block qMono input jacks

• [MIC/LINE]: Accepts both XLR connectors and phone

connectors. Connect the microphones and or

instruments you intend to use.

wMono/stereo input jacks

• [MIC]: Balanced XLR microphone input jacks

(1: ground, 2: hot, 3: cold)

• [LINE (L/MONO, R)]: Unbalanced phone type line ste-

reo input jacks (Unbalanced phone-type and

RCA stereo input jacks on the MG20XU/MG20)

NOTE

On any given channel, you may use either a phone jack or

RCA jack, but not both.

eStereo input jacks

• LINE [L, R]: These are stereo input jacks (unbalanced

input) for connecting line-level instruments, such

as electric keyboards and audio equipment. Two

jack types are provided: phone type and RCA pin

type.

NOTE

On any given channel, you may use either a phone jack or

RCA jack, but not both. If both types of jack are used, only the

phone jack will function.

!7

!6

!7

!6

!7

!6

!4

!3

!2

!3

!2

to

i

!3

!2

u

y y

q

t

r

!5

!4

!5!5 !5!5

!1 !1 !1

!0 !0

w

!0

e

Mono input

channels

1 – 12

(MG20XU/MG20)

1 – 8

(MG16XU/MG16)

1 – 4

(MG12XU/MG12)

Mono/stereo input

channels

13/14 – 19/20

(MG20XU/MG20)

9/10 – 11/12

(MG16XU/MG16)

5/6 – 7/8

(MG12XU/MG12)

Stereo input

channels

13/14 – 15/16

(MG16XU/MG16)

9/10 – 11/12

(MG12XU/MG12)

MG16XU

MG20XU/MG20: 1 – 12

MG16XU/MG16: 1 – 8

MG12XU/MG12: 1 – 4

MG20XU/MG20:

13/14 – 19/20

MG16XU/MG16:

9/10 – 11/12

MG12XU/MG12:

5/6 – 7/8

MG20XU/MG20

MG16XU/MG16

MG12XU/MG12

MG20XU

MG20

Phone type

MG16XU/MG16: 13/14 – 15/16

MG12XU/MG12: 9/10 – 11/12

RCA type

MG16XU/MG16: 13/14 – 15/16

MG12XU/MG12: 9/10 – 11/12

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 17

Controls and Connectors

r[PAD] switch

When this switch is turned on ( ), the input signal from

the [MIC/LINE] jack of the mono input channel is attenuated

by 26 dB. Turn this switch off ( ) if you’ve connected a

microphone or other device with a low input level to the

channel. Turn it on ( ) if you’ve connected a line-level

device.

NOTE

There may be some noise when operating switches. To prevent

this, turn the [ON] switch of a channel off before operating

other switches.

t[HPF] (High Pass Filter) switch

Turning this switch on ( ) will apply a high-pass filter that

attenuates frequencies below 80 Hz in the signal by a slope of

12 dB/octave.

NOTE

Turning the [HPF 80Hz (MIC)] switch on will apply a dedicated

high-pass filter only to the signal from the [MIC] jacks.

y[GAIN] knobs

For adjusting the gain of the input signal. Mono input chan-

nels have a [PAD] switch r that lets you change the range of

this control.

The adjustable gain range is as follows.

u[COMP] knobs

For adjusting the amount of compression applied to the chan-

nel. As the [COMP] knob is turned to the right the threshold,

ratio, and output gain are adjusted simultaneously.

• Threshold: +22 dBu to -8 dBu

• Ratio: 1:1 to 4 :1

• Output gain: 0 dB to +7 dB

• Attack time: Approximately 25 ms

• Release time: Approximately 300 ms

NOTE

Avoid setting the compression too high; since the resulting

higher average output level may lead to feedback.

i[PHANTOM +48V] switch and indicator

This switch toggles phantom power on and off. Turn this

switch on ( ) to supply DC+48 V to the XLR input jacks.

The indicator lights when this switch is on. Turn this switch

on when using one or more phantom-powered condenser

microphones.

NOTICE

• Be sure to leave this switch off ( ) if you do not need

phantom power.

• When turning phantom power on ( ), pay careful

attention to the following to prevent damage or noise in

the mixing console or connected equipment.

- Turn this switch off if equipment that does not use

phantom power is connected to the XLR input jacks.

- Do not disconnect XLR connector cables while this

switch is on.

- Set output controls such as the [STEREO] master

fader and the [GROUP] fader to their minimum levels

before turning phantom power on or off.

o[LINE /USB ] switch (XU models)

Switches the audio source input on CH19/20 USB IN {CH15/

16 USB IN} {CH11/12USB IN} between the [LINE] stereo

input jack and the [USB 2.0] jack.

NOTE

The volume input from computers through [USB 2.0] jack can

be adjusted by Attenuator Function. Please see Attenuator

Function (page 28).

[PAD] switch Range

ON -6 dB to +38 dB

OFF +20 dB to +64 dB

MG20XU/MG20: 1 – 12 13/14 – 19/20

MG16XU/MG16: 1 – 8 9/10 – 11/12

MG12XU/MG12: 1 – 4 5/6 – 7/8

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

18

!0 Equalizer ([HIGH]/[MID]/[LOW])

Equalization Types and Characteristics

The equalizer shapes the high, mid, and low audio frequen-

cies. Turning the knob to the right amplifies (boosts) the cor-

responding frequency band, while turning it to the left

attenuates (cuts) the band. Setting the knob to the middle “t”

position produces a flat response in the corresponding band.

The upper knob sets the variable mid frequency, while the

lower knob sets the amount of attenuation or boost (counter-

clockwise/clockwise) for the range.

The following table shows the EQ type, frequency, and cut/

boost range for each of the three bands.

* The signals from mono input jacks of the MG20XU/MG20

and MG16XU/MG16 can be adjusted from 250 Hz to 5 kHz.

!1 [AUX 1 – 4] knobs

[PRE] switches

[AUX (2, 4)/FX] knobs

The levels of each signal sent to the AUX 1 –

4 buses from each channel can be adjusted

independently. On stereo input channels, the

Line L (odd) and Line R (even) input signals

are mixed before being sent to each AUX

bus. Adjust the knobs so that they are near or

at the “t” (nominal) position.

NOTE

• The [AUX1] knob indicated “PRE” adjusts the level of the pre-

fader signal (before fader adjustment).

• The [PRE] switch on [AUX1] and [AUX2] can be used to

select whether the pre-fader ( ) (the signal before fader

adjustment) or post fader ( ) (the signal after fader adjust-

ment) signal is sent to the AUX bus by the [PRE] switch.

• The [AUX4/FX] and [AUX2/FX] knobs are used to adjust the

level of the signal sent to the FX bus (built-in effects) in addi-

tion to the AUX bus. The same signal level is sent to the AUX

buses and FX buses connected to these knobs.

!2 [PAN] knobs

[PAN/BAL] knobs

[BAL] knobs

• PAN: Sets the position of the sound image within the

stereo field. This knob adjusts the volume bal-

ance of each channel sent to the STEREO L/R

bus. When the knob is set to the 12 o’clock posi-

tion, the channel’s sound will be sent to the L and

R of the STEREO L/R bus at the same volume. In

this case, the sound image is positioned at the

center. If the bus assign switch [1-2] or [3-4] is

pressed, this knob adjusts the volume balance

sent to the GROUP bus. When the knob is set to

the 12 o’clock position, the same volume is sent

to each GROUP bus. If the knob is turned com-

pletely to the left, the signal is sent to the GROUP

1 or GROUP 3 bus only; if the knob is turned

completely to the right, the signal is sent to the

GROUP 2 or GROUP 4 bus only.

3 Band

[MID] Sweep 3 Band 2 Band

MG20XU/

MG20 CH 1 – 12 CH 13/14 –

19/20 —

MG16XU/

MG16 CH 1 – 8 CH 9/10 –

15/16 —

MG12XU/

MG12 — CH 1 – 7/8 CH 9/10 –

11/12

Band Type Frequency Cut/Boost

range

HIGH Shelving 10 kHz

±15 dBMID Peaking 2.5 kHz*

LOW Shelving 100 Hz

3 Band

[MID] Sweep

3 Band 2 Band

MG20XU/MG16XU: [AUX1],

[AUX2 – 3], [AUX4/FX]

MG20/MG16: [AUX1], [AUX2 – 4]

MG12XU: [AUX1], [AUX2/FX]

MG12: [AUX1 – 2]

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 19

Controls and Connectors

• BAL: Sets the volume balance of the signal sent from

each stereo input channel (L/R) to the STEREO

L/R bus or GROUP bus. When this knob is set to

the 12 o’clock position, the sound of the stereo

input channels (L/R) will be sent to the STEREO

L/R bus or GROUP 1, 3/2, 4 bus at the same vol-

ume.

• PAN/BAL: This knob performs both [PAN] and [BAL]

functions. You can use this as a [PAN] control

when sound is input to the [LINE] (L/MONO) jack,

and as a [BAL] control when sound is input to

both the [LINE] (L) and [LINE] (R) jacks.

!3 [ON] switches

Turn this switch on ( ) to send the respective channel’s

signal to the buses. The switch lights when on. When this

switch is off ( ), the respective signal input is not sent to

the AUX bus or GROUP bus.

NOTE

• Even if the [ON] switch is off, the PFL signal from each chan-

nel can still be monitored via the [PHONES] jack.

• To minimize noise, turn the [ON] switch off for any unused

channels.

!4 [PEAK] indicators

The peak level of the post-EQ signal is detected, and the

PEAK indicator lights red when the level reaches 3 dB below

clipping.

!5 Bus assign switch

These switches determine the bus(es) to which each channel’s

signal is sent. Turn the switch on ( ) to output the signal to

the corresponding buses.

• [1-2] switch: Assigns the channel’s signal to the

GROUP 1-2 buses.

• [3-4] switch: Assigns the channel’s signal to the

GROUP 3-4 buses.

• [ST] switch: Assigns the channel’s signal to the STE-

REO L/R buses.

NOTE

To send the signal to each bus, engage the [ON] switch !3.

!6 [PFL] (Pre-fader Listen) switch

When the [PFL] switch is on ( ), the channel pre-fader

signal is output to the [MONITOR OUT] and [PHONES]

jacks for monitoring. In this condition, the audio from the

STEREO L/R buses or GROUP buses that could be heard in

the [MONITOR OUT] and [PHONES] jacks can no longer be

heard. When a [PFL] switch is turned on, the [PFL] indicator

below the level meter flashes.

!7 Channel faders

For adjusting the level of the channel signal. Use these con-

trols to adjust the balance between the various channels.

NOTE

To minimize noise, set the fader sliders for any unused chan-

nels all the way down.

STEREO L bus,

GROUP 1 bus,

GROUP 3 bus

STEREO R bus,

GROUP 2 bus,

GROUP 4 bus

BAL

LINE L

LINE R

MG20XU/MG20

MG16XU/MG16

MG12XU/MG12

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

20

-Mono input channels

-Mono/stereo input channels

HPF

LOW

MID

HIGH

3-Stage EQ

MID f (*)

COMP

PEAK

ON (CH Fader)

PAN

STEREO L

STEREO R

PFL L

PFL R

PAD OFF

[-60dBu – -16dBu]

PAD ON

[-34dBu – +10dBu]

GROUP 2

GROUP 1

GROUP 3 (*)

GROUP 4 (*)

ST

1-2

3-4 (*)

PFL CTRL

PAD HA

26dB GAIN

HPF

MG20XU/MG20 : CH1–12

MG16XU/MG16 : CH1–8

MG12XU/MG12 : CH1–4

PHANTOM

80Hz

MG20XU/MG20 : CH1–8

MG16XU/MG16 : CH1–8

MG12XU/MG12 : CH1–4

MG20XU/MG20 : CH9–12

COMP

PFL

(*) Only MG20XU, MG20, MG16XU and MG16

AUX2/FX, AUX2

AUX1

AUX3 (*)

AUX4/FX, AUX4 (*)

PRE AUX1

MG20XU/MG20/MG16XU/MG16

MG12XU/MG12

PRE AUX2

MG12XU/MG12

MG20XU/MG20/MG16XU/MG16

AUX3 (*)

AUX4/FX, AUX4 (*)

AUX1PRE

AUX2/FX, AUX2

HPF

LOW

MID

HIGH

3-Stage EQ

PEAK

ON (ST CH Fader)

STEREO L

STEREO R

PFL L

PFL R

GROUP 2

GROUP 1

GROUP 3 (*)

GROUP 4 (*)

ST

1-2

3-4 (*)

PFL CTRL

HA HPF

MG20XU/MG20 : CH13/14–19/20

MG16XU/MG16 : CH9/10,11/12

MG12XU/MG12 : CH5/6,7/8

PHANTOM

80Hz

PFL

HA

USB-PLAY-L

USB-PLAY-R

MIC [-60dBu – -16dBu]

L/MONO [-34dBu – +10dBu]

R [-34dBu – +10dBu] HA

MG20XU/MG20 : CH13/14,15/16

MG16XU/MG16 : CH9/10,11/12

MG12XU/MG12 : CH5/6,7/8

L [-34dBu – +10dBu]

R [-34dBu – +10dBu]

MG20XU/MG20 : CH17/18,19/20

HA

HA

MG20XU : CH17/18

MG20 : CH17/18

CH19/20

MG20XU : CH19/20

3-Stage EQ

GAIN

GAIN

PAN/BAL

Only MG20XU and MG20

AUX2/FX, AUX2

AUX1

AUX3 (*)

(*) Only MG20XU, MG20, MG16XU and MG16

AUX4/FX, AUX4 (*)

PRE AUX1

MG20XU/MG20/MG16XU/MG16

MG12XU/MG12

AUX1PRE

PRE AUX2

MG12XU/MG12

MG20XU/MG20/MG16XU/MG16

AUX3 (*)

AUX4/FX, AUX4 (*)

LINE/USB

AUX2/FX, AUX2

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 21

Controls and Connectors

-Stereo input channels

LOW

MID (*)

HIGH

EQ

ON (ST CH Fader)

STEREO L

STEREO R

PFL L

PFL R

GROUP 2

GROUP 1

GROUP 3 (*)

GROUP 4 (*)

ST

1-2

3-4 (*)

PFL CTRL

MG16XU/MG16 : CH13/14,15/16

MG12XU/MG12 : CH9/10,11/12

PFL

(*) Only MG16XU and MG16

HA

USB-PLAY-L

USB-PLAY-R

L [-10dBu]

R [-10dBu]

HA EQ

BAL

MG16XU : CH15/16

MG12XU : CH11/12

AUX2/FX, AUX2

AUX1

AUX3 (*)

AUX4/FX, AUX4 (*)

PRE AUX1

MG16XU/MG16

MG12XU/MG12

AUX1PRE

PRE AUX2

MG12XU/MG12

MG16XU/MG16

AUX4/FX, AUX4 (*)

AUX3 (*)

MG16XU/MG16 : 3-Stage

MG12XU/MG12 : 2-Stage

LINE/USB

AUX2/FX, AUX2

MG16XU : CH13/14

MG16 : CH13/14,15/16

MG12XU : CH9/10

MG12 : CH9/10,11/12

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

22

Built-in Effects Block

(XU Models Only)

qDisplay

Indicates the effect program number selected with the [PRO-

GRAM] knob e. The number flashes during selection; how-

ever, if several seconds pass without a selection being made,

the program returns to the last number selected.

wEffect program list

This is the list of built-in effect programs. For details about

these programs, see the “Effect Programs” on page 33.

e[PROGRAM] knob

Selects one of the 24 built-in effects. Turn the knob to select

the desired effect, and then press the knob to enable it.

NOTE

• You can also select the desired effect by turning the knob

while holding it down.

• The [PROGRAM] knob can be used to adjust the volume of

audio playback from a computer.

For details, see the “Attenuator Function” (page 28).

MG16XU MG20XU

oo

r

e

y

i

y

r

w

q

!0

u

t

e

DSP

PARAMETER PROGRAM

USB-Att.

FOOT SW

LEVEL

ON FX RTN

ST

3-4(*)

1-2

AUX1PRE

AUX2PRE (*)

AUX3PRE (*)

PFL

FX ON

STEREO L

STEREO R

GROUP 2

GROUP 1

GROUP 3 (*)

GROUP 4 (*)

AUX1

AUX2 (*)

AUX3 (*)

PFL L

PFL R

PFL CTRL

MG20XU/MG16XU : AUX4/FX

MG12XU : AUX2/FX

L

R

IN

MG20XU

MG16XU

MG12XU

(*) Only MG16XU

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 23

Controls and Connectors

r[PARAMETER] knob

For adjusting the parameter (depth, speed, etc.) for the

selected effect. The last value used with each effect type is

saved.

NOTE

When you change to a different effect type, the mixer automati-

cally restores the value that was previously used with the newly

selected effect (regardless of the current position of the

[PARAMETER] knob).

t[AUX1 – 3] knobs (MG16XU)

[AUX1] knob (MG12XU)

For adjusting the level of the signal sent from

the built-in effect unit to the AUX bus.

NOTE

• The [AUX1] knob indicated “PRE” adjusts

the level of the pre-fader signal(before fader

adjustment).

• The [FX RTN] fader does not affect the level

of the signal sent to the AUX bus.

y[FX ON] switch (MG20XU)

[ON] switch (MG16XU/MG12XU)

This button turns the corresponding built-in effect on or off.

When the function is on ( ), the switch lights.

NOTE

If this switch is on and the foot switch ([FOOT SW] jack !0) is

used to turn off the built-in effect, the switch flashes.

uBus assign switch (MG16XU/MG12XU)

These switches determine the bus(es) to which the signal of

the built-in effects is sent. Turn the switch on ( ) to output

the signal to the corresponding buses.

• [1-2] switch: Assigns to the GROUP 1-2 buses.

• [3-4] switch: Assigns to the GROUP 3-4 buses.

• [ST] switch: Assigns to the STEREO L/R bus.

i[PFL] (Pre-fader Listen) switch

(MG16XU/MG12XU)

When the [PFL] switch is on ( ), the [FX RTN] pre-fader

(MG16XU/MG12XU only) signal is output to the [MONI-

TOR OUT] and [PHONES] jack for monitoring.

o[FX RTN LEVEL] knob (MG20XU)

[FX RTN] fader (MG16XU/MG12XU)

These adjust the level of the effect sent from the built-in

effects to the GROUP 1-2 (MG16XU, MG12XU), 3-4

(MG16XU), and STEREO L/R buses.

!0 [FOOT SW] (Foot Switch) jack

Connect a foot switch to this phone type input jack. An

optional Yamaha FC5 foot switch (sold separately) can be

used to toggle the effects ON and OFF.

MG20XU MG16XU/MG12XU

MG16XU MG12XU

MG20XU MG16XU/MG12XU

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

24

Master Block q[SEND] jacks

You use these jacks, for example, to connect to an external

effect device or a stage/studio monitoring system. These are

impedance-balanced* phone-type output jacks.

w[GROUP OUT] jacks

These impedance-balanced TRS phone jacks output the

[GROUP 1-2 and 3-4] (MG20XU/MG20/MG16XU/MG16)

signals. Use these jacks to connect to the inputs of a multi-

track recorder, external mixer, or another similar device.

e[MONITOR OUT] jacks

Connect these impedance-balanced TRS phone jacks to your

operator monitoring system.

NOTE

When the [PFL] indicator is flashing, the signal for channels

where the [PFL] switch is pressed is output.

When the [PFL] indicator is off, the signal for the buses

selected in the [MONITOR] section y is output.

y

o

t

r

eq

w

u

i

rewq

MG16XU

MG20XU Rear Panel

* Impedance-balanced

Since the hot and cold terminals of impedance-balanced

output jacks have the same impedance, these output jacks

are less affected by induced noise.

MG20XU/MG20/MG16XU/MG16: [AUX1 – 4]

MG12XU/MG12: [AUX1 – 2]

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 25

Controls and Connectors

r[STEREO OUT] jacks

These are XLR type and TRS phone-type balanced output

jacks that output the mixed stereo signal. The signal level is

adjusted by the [STEREO] master fader before it is output.

You can use these jacks, for example, to connect to the power

amplifier driving your main speakers.

t[PHONES] jack

Connect a pair of headphones to this TRS phone jack.

NOTE

• The [PHONES] jack outputs the same signal as the [MONI-

TOR OUT] jacks.

• When the [PFL] indicator is flashing, the signal for channels

where the [PFL] switch is pressed is output. When the [PFL]

indicator is off, the signal for the buses selected in the [MON-

ITOR] section y is output.

y[MONITOR] section

• [POWER] indicator

This indicator lights up when the mixer’s power is on

().

• Level meter

The level meter LED shows the level of the signal in

the STEREO L/R and GROUP buses, or selected with

[PFL] switches. The “0” (< ) segment corresponds to

the nominal output level. The level meter [PEAK] indi-

cator lights when output reaches the clipping level.

• [PFL] indicator

When the [PFL] switch is on, the indicator flashes.

• [MONITOR LEVEL] knob

For adjusting the level of the signal output to the

[MONITOR OUT] jack.

• [PHONES] knob

For adjusting the level of the signal output to the

[PHONES] jack.

• [SOURCE]/[SOURCE SELECT] (Monitor signal

selection switch)

Sets the signal sent to the [MONITOR OUT] jack,

[PHONES] jack, and level meter. You can use this

switch to select the signal from the STEREO L/R

buses, GROUP 1-2 buses, or GROUP 3-4 buses

(MG20XU/MG20/MG16XU/MG16).

•MG12XU/MG12

STEREO L/R buses: [STEREO] ( )

GROUP 1-2 buses: [GROUP] ( )

• MG20XU/MG20/MG16XU/MG16

STEREO L/R buses: [STEREO] ( )

GROUP 1-2 buses: [GROUP] ( ), [1-2] ( )

GROUP 3-4 buses: [GROUP] ( ), [3-4] ( )

PHONES

MONITOR

PFL L

PFL R

PFL CTRL

STR MONI

STL MONI

G2 MONI

G3 MONI

G4 MONI

G1 MONI

MG20XU/MG20

MG16XU/MG16

MG12XU/

MG12

1-2/3-4

STEREO/

GROUP

POWER

PEAK

+10

+6

+3

0

-3

-6

-10

-15

-20

-25

PFL

-30 PHONES

[3mW 40ohms]

MONITOR OUT L

[+4dBu]

MONITOR OUT R

[+4dBu]

MG20XU/MG20

MG16XU/MG16

MG12XU/MG12

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

26

u[SEND MASTER] section

For adjusting the levels of the signals output to the [SEND]

jacks and [AUX1 – 4].

i[GROUP] section

• [ON] switch

Turn this switch on ( ) to activate the [GROUP]

fader. The switch lights when on.

• [GROUP 1-2] fader

For adjusting the level of the signal output to the

[GROUP OUT 1, 2] jacks.

• [GROUP 3-4] fader (MG20XU/MG20/MG16XU/

MG16)

For adjusting the signal level to the [GROUP OUT 3, 4]

jacks.

• [ST] switch

If this switch is on ( ), the signals are sent to the

STEREO L/R bus via the [GROUP 1-2, 3-4] faders.

The GROUP 1 and 3 signal goes to the STEREO L

bus, and the GROUP 2 and 4 signal goes to the STE-

REO R bus.

AUX1

AUX2/FX, AUX2

AUX1

AUX3 (*)

AUX4/FX, AUX4 (*)

AUX2

(*) AUX3

AUX4

(*) Only MG20XU, MG20, MG16XU and MG16

SEND AUX1

[+4dBu]

SEND AUX2

[+4dBu]

SEND AUX3

[+4dBu]

SEND AUX4

[+4dBu]

MG20XU/MG20/MG16XU/MG16: [AUX1 – 4] knobs

MG12XU/MG12: [AUX1 – 2] knobs

MG20XU/MG20

MG16XU/MG16

MG12XU/

MG12

GROUP 2

GROUP 1

GROUP 3 (*)

GROUP 4 (*)

STEREO L

STEREO R

GROUP 1-2 G2 MONI

G3 MONI

G4 MONI

ST

ST

ON

ON

GROUP 3-4

G1 MONI

(*)

(*) Only MG20XU, MG20, MG16XU and MG16

GROUP OUT 1

[+4dBu]

GROUP OUT 2

[+4dBu]

GROUP OUT 3

[+4dBu]

GROUP OUT 4

[+4dBu]

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 27

Controls and Connectors

o[STEREO] section

• [ON] switch

Turn this switch on ( ) to enable the [STEREO]

master fader. The switch lights when on.

• [STEREO] master fader

For adjusting the level of the signal output to the [STE-

REO OUT] jack.

Power Block

• [/] POWER switch

Turns power to the unit on or off. Press the switch to the

“ ” position to turn on the power. Press the switch to the

“ ” position to turn off the power.

NOTICE

• Note that the trace current continues to flow even while

the switch is in the off position. If you do not plan to use

the mixer for a while, be sure to unplug the power cord

from the wall outlet.

• Rapidly turning the unit on and off in succession can

cause it to malfunction. After turning the unit off, wait for

at least 6 seconds before turning it on again.

• [AC IN] jack

Connect the included power cord here. First, connect the

power cord to this unit, and then plug it into an AC outlet.

STEREO L

STEREO R

STEREO

STR MONI

ON

STL MONI

USB-REC-R

USB-REC-L

STEREO OUT L

[+4dBu]

STEREO OUT R

[+4dBu]

Controls and Connectors

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

28

USB Block (XU Models Only)

• [USB 2.0] jack

Connects to a computer via a USB cable. The signal from the

STEREO L/R buses is output to the computer. (This signal is

not affected by the [STEREO] master fader.) A USB driver

might be required for computer input/output. You can down-

load the driver from the following Yamaha website, and

install it on your computer.

http://www.yamahaproaudio.com/mg_xu

When the [ST] switch of a channel which has a [LINE /

USB ] switch is on while DAW software is being used, a

loop is formed and feedback or howling may result.

[USB 2.0] Connection Precautions

Be sure to observe the following points when connecting to a

computer’s [USB 2.0] interface. Failure to observe these rules

can result in computer freezes/hang-ups and possibly data

loss or corruption. If the mixer or computer does hang up,

restart the application and/or computer and turn the power to

the mixer off and then on again.

NOTICE

• Use an A/B type USB cable. The cable should be no

more than 1.5 meters long. A USB 3.0 cable cannot be

used.

• Be sure to wake the computer from sleep/suspended/

standby mode before making a connection to the com-

puter’s [USB 2.0] connector.

• Connect the mixer to the computer before turning the

mixer power on.

• Always perform the following two operations before turn-

ing the mixer’s power on or off, or connecting or discon-

necting the USB cable.

- Exit all applications.

- Confirm that no data is being sent from the mixer.

• Allow at least six (6) seconds between turning the mixer

on or off, and plugging or unplugging the USB cable.

USB-REC-L

USB-REC-R

USB-PLAY-L

USB-PLAY-R

USB Audio

Controller

USB-Att.

only MG20XU/MG16XU/MG12XU

(USB-Att.)

Attenuator Function

The [PROGRAM] knob e (page 22) can be used to adjust the

volume of audio playback from a computer.

1. Press the [PROGRAM] knob five times consecutively to dis-

play the attenuation value (dB).

2. Turn the [PROGRAM] knob to set it between -24 dB to 0

dB. (The minus sign is not displayed.)

3. Press the [PROGRAM] knob again to exit the setting.

When the attenuator is enabled, the dot lights at the lower right

of the display.

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 29

Troubleshooting

When No Sound Is Output

Refer to this section when no sound is output or the volume is very low. This information is for when sound is output from the [STEREO

OUT] jacks or the [PHONES] jack.

For details about these functions, see “Controls and Connectors” on pages 14 – 28.

STEP 1 Connections and Signal Flow

Check if the instruments, microphones, and speakers are connected correctly, and if any of the cables are damaged.

DI

[STEREO OUT] jacks

[PHONES] jack

When connecting gui-

tars or basses to the

MG, use DI boxes.

1

Signal is input from

a microphone or

instrument.

2

Adjust tone and

level for each

channel.

3Route signals from channels to buses, and then on to the master block.

4

Make final adjustments

to the level of the signal

routed through buses.

5

The signal is output

to speakers and/or

headphones.

Troubleshooting

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

30

STEP 2 Setting Switches and Controls

Check the overall balance

Use the settings shown in the illustration to check the overall balance from speakers or headphones.

To monitor the signal of each channel

You can use the level meter and headphones to check the pre-fader signal for each channel.

•[PFL] switches: Turn on ( ) for the channel(s) you want to check.

•[MONITOR LEVEL] knob: Adjust the level.

[GAIN] knobs

Turn until the [PEAK] indi-

cator begins to flash inter-

mittently.

[PHANTOM +48V] switch

Turn this switch on (the indicator lit) when using a condenser microphone.

• To prevent an unwanted burst of noise from the speakers, turn off powered speak-

ers (or power amps) before turning on the [PHANTOM +48V] switch.

[ON] switches

On (lit)

[ST] switches

On ( )

[PEAK]

indicators

[PFL] switches

All off ( )

• When [PFL] switches are on, only the sig-

nals from those channels are sent to the

level meter and headphones. Therefore, you

will be unable to check the overall sound.

• If the [PFL] indicator below the level meter is

flashing, one or more [PFL] switches are on.

Channel faders

For adjusting the level

for each channel.

[STEREO] master fader

For adjusting the overall volume,

with “0” as the nominal level.

[SOURCE]/[SOURCE SELECT]

(Monitor signal selection switch)

Use to monitor the sound via the level

meter and/or headphones.

•MG12XU/MG12

STEREO L/R buses: [STEREO] ( )

GROUP 1-2 buses: [GROUP] ( )

• MG20XU/MG20/MG16XU/MG16

STEREO L/R buses: [STEREO] ( )

GROUP 1-2 buses: [GROUP] ( ),

[1-2] ( )

GROUP 3-4 buses: [GROUP] ( ),

[3-4] ( )

[PHONES] knob

For adjusting the headphone

level.

Level meter

If the level meter [PEAK] indica-

tor flashes frequently, lower the

faders for each channel.

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 31

Troubleshooting

Other

If any specific problem should persist, please contact your Yamaha dealer.

The power does not come

on.

Is the mixer connected to an independent power source (generator, etc.) or a power strip with

switches? Check that the power of that device is turned on.

No sound is output. Are external instruments (including microphones) and speakers connected correctly?

Are your cables shorted?

Are the [GAIN] knobs for each channel, channel faders, [STEREO] master fader, and [GROUP] fad-

ers adjusted to appropriate levels?

Are the bus assign switches and [LINE /USB ] switch set appropriately?

No sound is output from the

[STEREO OUT] jack.

Are the [ON] switch and [ST] switch for the channels you are using turned on?

Is the [STEREO] master [ON] switch turned on?

No sound is output from the

[SEND (AUX1 – 4)] jacks

Are the [SEND MASTER] knobs and [AUX 1 – 4] for each channel set appropriately?

Are the [ON] switches for the channels you are using turned on?

No sound is output from the

[MONITOR OUT] jack or

[PHONES] jack.

Are the [PFL] switches for the channels you are not using turned on?

Turn the [PFL] switches off.

The sound is low, distorted,

or noisy.

Is the microphone connected to a [MIC] jack or a [MIC/LINE] jack?

When using a condenser microphone, is the [PHANTOM +48V] switch turned on?

Is the [PAD] switch on? Turn this switch off for sources with low output levels, such as microphones.

Is the output signal level for the instrument connected to the mixer appropriate?

When connecting an instrument with an output level of +4 dBu, either turn on the [PAD] switch on a

mono input channel or use a stereo input channel.

Where an input channel provides both a XLR input jack and a phone input jack, or a phone input

jack and an RCA pin jack, are there connections made at both jacks? Use only one of these jacks.

Are the [GAIN] knobs for each channel, channel faders, [STEREO] master fader, and [GROUP] fad-

ers adjusted to appropriate levels?

Are effect or compressor levels too high? Use the [FX] knob, [FX RTN] fader, [FX RTN LEVEL]

knob, and [COMP] knob to lower their levels.

Effects are not applied. Are the [FX] knobs for each channel adjusted to appropriate levels?

Is the [ON] button for [FX RTN] turned on?

Are the [PARAMETER] knob and [FX RTN] fader adjusted to appropriate levels?

Is the [FX RTN] bus assign switch set appropriately?

If external effects are connected to the [SEND(AUX1 – 4)] jacks, are the [AUX1 – 4] knobs for

[SEND MASTER] set appropriately?

Speaking voices are not

clear.

Is the [HPF] switch turned on?

Is the equalizer ([HIGH]/[MID]/[LOW]) adjusted appropriately?

No mixer monitor signal is

output.

Are powered speakers connected to the [MONITOR OUT] jacks?

Use the [MONITOR LEVEL] knob to adjust the signal output from the [MONITOR OUT] jacks.

Left and right levels are dif-

ferent for a stereo signal

input.

Is [PAN] set to the center? If panned to the center, try reversing the left and right input connections.

If, after switching the left and right connections, the side with the low volume level also switches,

check the instrument or device that is the source of the signal.

Are you using the same type of cable to connect both the left and right input signals? Cables with

built-in resistors will attenuate the signal.

The sound level is unstable

and inconsistent.

Is the compressor level set too high? Use the [COMP] knob to lower the level.

The volume of audio play-

back from a computer need

to be adjusted.

Use the “Attenuator Function”. For details, see page 28.

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

32

Appendix

General Specifications

0 dBu = 0.775 Vrms, Output impedance of signal generator (Rs) = 150 Ω

All level controls are nominal if not specified.

For other specifications, see the included “Technical Specifications.”

The contents of this manual apply to the latest specifications as of the publishing date. To obtain the latest manual, access the Yamaha web-

site then download the manual file.

European Models

Inrush Current based on EN 55103-1:2009

3.0 A (on initial switch-on)

2.0 A (after a supply interruption of 5s)

Conforms to Environments: E1, E2, E3 and E4

MG12XU

MG12

MG16XU

MG16

MG20XU

MG20

Input channels Mono: MIC/LINE 4 8 12

Mono/Stereo: MIC/LINE 2 2 4

Stereo: LINE 2 2 0

Output channels STEREO OUT 2

MONITOR OUT 1

PHONES 1

AUX SEND244

GROUP OUT 2 4 4

BusSTEREO111

GROUP 2 4 4

AUX 2 (MG12XU: incl. FX) 4 (MG16XU: incl. FX) 4 (MG20XU: incl. FX)

Input Channel

Function

PAD 26 dB

HPF 80 Hz, 12 dB/oct (Mono/Stereo: MIC only)

COMP 1 knob compressor (Gain/Threshold/Ratio)

Threshold: +22 dBu to -8 dBu, Ratio: 1:1 to 4:1, Output level: 0 dB to 7 dB

Attack time: approx. 25 msec, Release time: approx. 300 msec

EQ HIGH: Gain: +15 dB/-15 dB, Frequency: 10 kHz shelving

MID:

Gain: +15 dB/-15 dB

Frequency: 2.5 kHz

peaking

MID:

Gain: +15 dB/-15 dB

Frequency: Mono 250 Hz – 5 kHz peaking

Stereo 2.5 kHz peaking

LOW: Gain: +15 dB/-15 dB, Frequency: 100 Hz shelving

PEAK LED LED turns on when post EQ signal reaches 3 dB below clipping level

Level Meter Pre Monitor LEVEL 2 × 12 -segment LED meter [PEAK, +10, +6, +3, 0, -3, -6, -10, -15, -20, -25, -30 dB]

Built-in Effect

(XU Models)

SPX Algorithm 24 programs, PARAMETER control: 1, FOOT SW: 1 (FX RTN CH on/off)

USB Audio

(XU Models)

2 IN / 2 OUT USB Audio Class 2.0 compliant, Sampling Frequency: Max 192 kHz, Bit Depth: 24-bit

Phantom Power Voltage +48 V

Power Requirements AC 100 – 240 V, 50 / 60 Hz

Power Consumption 22 W 30 W 36 W

Dimensions (W × H × D)

308 mm × 118 mm × 422 mm

(12.1" × 4.6" × 16.6")

444 mm × 130 mm × 500 mm

(17.5" × 5.1" × 19.7")

444 mm × 130 mm × 500 mm

(17.5" × 5.1" × 19.7")

Net Weight MG12XU: 4.2 kg (9.3 lbs)

MG12: 4.0 kg (8.8 lbs)

MG16XU: 6.8 kg (15.0 lbs)

MG16: 6.6 kg (14.6 lbs)

MG20XU: 7.1 kg (15.7 lbs)

MG20: 6.9 kg (15.2 lbs)

Included Accessory

Owner’s Manual, Technical Specifications, Cubase AI Download Information (XU models)

Rack-Mount Kit (MG20XU, MG20, MG16XU, MG16), AC Power Cord

Optional Accessory Rack-Mount Kit: RK-MG12 (MG12XU, MG12), Foot Switch: FC5 (XU models)

Operating Temperature 0 to + 40°C

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 33

Appendix

Effect Programs

* “LFO” stands for Low Frequency Oscillator. An LFO is normally used to periodically modulate another signal, using different waveform

shapes and modulation speeds.

No. Program Parameter Description

1 REV HALL 1 Reverb Time Reverb simulating a large space such as a concert hall.

2 REV HALL 2 Reverb Time

3 REV ROOM 1 Reverb Time Reverb simulating the acoustics of a small space (room).

4 REV ROOM 2 Reverb Time

5 REV STAGE 1 Reverb Time Reverb simulating a large stage.

6 REV STAGE 2 Reverb Time

7 REV PLATE Reverb Time Simulation of a metal-plate reverb unit, producing a more hard-edged rever-

beration.

8 DRUM AMB Reverb Time A short reverb that is ideal for use with a drum kit.

9 EARLY REF Room Size An effect which isolates only the early reflection components from reverbera-

tion, creating a ‘flashier’ effect than conventional reverb.

10 GATE REV Room Size An effect which cuts halfway the tail-end of the reverberation, making a more

powerful sound.

11 SINGLE DLY Delay Time An effect which repeats the same sound only once. Shortening the delay time

produces a doubling effect.

12 DELAY Delay Time Feedback delay adding multiple delayed signals.

13 VOCAL ECHO Delay Time Echo designed for conventional vocals.

14 KARAOKE Delay Time Echo designed for karaoke (sing-along) applications.

15 PHASER LFO* Freq Cyclically changes the phase to add modulation to the sound.

16 FLANGER LFO* Freq Adds modulation to the sound, producing an effect similar to the rise and fall

sound of a jet engine.

17 CHORUS 1 LFO* Freq Creates a thicker ensemble-like sound by adding the multiple sounds with dif-

ferent delay times.

18 CHORUS 2 LFO* Freq

19 SYMPHONIC LFO* Depth Multiplies the sound for thicker texture.

20 TREMOLO LFO* Freq An effect which cyclically modulates the volume.

21 AUTO WAH LFO* Freq A wah-wah effect with cyclical filter modulation. The [PARAMETER] knob

adjusts the speed of the LFO* that modulates the “wah” filter.

22 RADIO VOICE Cutoff Offset Recreates the lo-fi sound of an AM radio. The [PARAMETER] knob adjusts

the frequency band to be emphasized.

23 DISTORTION Drive Adds a sharp-edged distortion to the sound.

24 PITCH CHANGE Pitch An effect which changes the pitch of the signal.

Appendix

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

34

Jack and Connector List

* These jacks also can be connected with TS phone connectors. If you use TS phone connectors, the connection will be unbalanced.

Connector Types

Jacks and Connectors Polarities Configurations

MIC/LINE, MIC, STEREO OUT

Pin 1: Ground

Pin 2: Hot (+)

Pin 3: Cold (–)

XLR Jack

MIC/LINE*, AUX SEND,

GROUP OUT, MONITOR OUT,

STEREO OUT

Tip: Hot (+)

Ring: Cold (–)

Sleeve: Ground

TRS Phone Connector

PHONES

Tip: L

Ring: R

Sleeve: Ground

LINE (stereo input channels) Tip: Hot

Sleeve: Ground

TS Phone Connector

XLR

This 3-pin connector is resistant to externally induced noise, and is used pri-

marily for balanced connections. With properly designed receiving circuitry,

cables with this type of connector can also be used for unbalanced signals.

XLR type connectors are the standard for microphone connections as well as

most professional audio gear.

Phone

Phone connectors are available in TRS and TS types. TRS types are used for

stereo headphone jacks, insert jacks, and also for carrying balanced signals in

many cases. TS types are used to carry unbalanced signals -for example,

electric guitar cables.

RCA Pin

This type of unbalanced connector is most commonly found on home audio

and video equipment. RCA type pin jacks are often color coded: white for left

audio channel and red for right audio channel, for example.

INPUT OUTPUT

Ring

TipSleeve

Sleeve Tip

Male

Female

TRS Phone

TS Phone

White

Red

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 35

Appendix

Rack Mounting

The MG12XU/MG12 require at least 10 U* of rack space. To take

into account the cable connections, we recommend to ensure 11

U* of rack space. The MG20XU/MG20/MG16XU/MG16 require

at least 12 U* of rack space. To take into account the cable con-

nections, we recommend to ensure 14 U* of rack space.

* 10 U is approximately 445 mm, 11 U is approximately 489 mm, 12

U is approximately 533 mm, and 14 U is approximately 623 mm.

Precautions for Rack Mounting

-This unit is rated for operation at ambient temperatures

ranging from 0 to 40 degrees Celsius. If you install this unit

along with other devices in a poorly ventilated rack, the

ambient temperature inside the rack may rise, resulting in

inefficient performance. Be sure to rack-mount in the fol-

lowing conditions so the unit does not overheat.

• When mounting the unit in a rack with devices such as

power amplifiers that generate a significant amount of

heat, leave more than 1 U of space between the MG and

other equipment. Also, either leave the open spaces

uncovered or install appropriate ventilating panels to

minimize the possibility of heat buildup.

• To ensure sufficient airflow, leave the rear of the rack

open and position it at least 10 centimeters from walls or

other surfaces. If the rear of the rack cannot be left open,

install a commercially available fan or similar ventilating

option to secure sufficient airflow. If you’ve installed a

fan kit, there may be cases in which closing the rear of the

rack will produce a greater cooling effect. Refer to the

rack and/or fan unit manual for details.

Mounting Procedures

(The illustration shows the MG12XU.)

1. Use a screwdriver to loosen the screws on the

sides of the mixer (six total).

2. Use the screws removed in Step 1 to install the

rack-mount kit (included with MG20XU/MG20/

MG16XU/MG16, optional RK-MG12 for the

MG12XU/MG12 sold separately) on the mixer.

NOTICE

Be sure to use the screws removed in Step 1. Using other

screws can cause damage.

3. Mount the unit into the rack, and fasten it into

place.

CAUTION

This unit is heavy, and should be lifted by two people

when mounting it into a rack.

* The MG20XU/MG20/MG16XU/MG16 require at least 12 U of rack

space. To take into account the cable connections, we recom-

mend to ensure 14 U of rack space.

Rack-Mount Kit

Right and Left

Designation of

Rack-Mount Kit

MG20XU/

MG20 Accessories —

MG16XU/

MG16 Accessories —

MG12XU/

MG12

Option sold separately

Model Name: RK-MG12

Indicated L/R

(Locate the bracket des-

ignated ‘L’ on the left,

and the bracket desig-

nated ‘R’ on the right)

10 U* 11 U *

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

36

Index

Numerics

[1-2] switch .......................................................19, 23

[3-4] switch .......................................................19, 23

A

[AC IN] jack ............................................................27

Attenuator Function ................................................28

[AUX1] knob ...........................................................23

[AUX1 – 3] knob .....................................................23

[AUX1 – 4] knob .....................................................18

[AUX (2, 4)/FX] knob ..............................................18

B

[BAL] knob ..............................................................18

Bus assign switch .............................................19, 23

C

[COMP] knob ..........................................................17

D

DI (direct box) .........................................................29

D-PRE ......................................................................8

E

Effect program list ..................................................22

Equalizer ([HIGH]/[MID]/[LOW]) .............................18

F

[FOOT SW] (Foot Switch) jack ...............................23

[FX ON] switch .......................................................23

[FX RTN] fader .......................................................23

[FX RTN LEVEL] knob ...........................................23

G

[GAIN] knob ............................................................17

[GROUP] section ....................................................26

[GROUP 1-2] fader .................................................26

[GROUP 3-4] fader .................................................26

[GROUP OUT] jack ................................................24

H

[HPF] (High Pass Filter) switch ..............................17

L

Level meter ............................................................25

[LINE /USB ] switch ......................................17

M

[MIC/LINE] ..............................................................16

[MONITOR] section ................................................25

[MONITOR LEVEL] knob .......................................25

[MONITOR OUT] jack ............................................24

Mono input jack ......................................................16

Mono/stereo input jack ...........................................16

O

[ON] switch .......................................... 19, 23, 26, 27

P

[PAD] switch .......................................................... 17

[PAN] knob ............................................................ 18

[PAN/BAL] knob .................................................... 18

[PARAMETER] knob ............................................. 23

[PEAK] indicator .................................................... 19

Peaking ................................................................. 18

[PFL] indicator ....................................................... 25

[PFL] (Pre-fader Listen) switch .................. 10, 19, 23

[PHANTOM +48V] switch and indicator ................ 17

Phone .................................................................... 34

[PHONES] jack ...................................................... 25

[PHONES] knob .................................................... 25

[ / ] POWER switch .......................................... 27

[PRE] switch .......................................................... 18

[PROGRAM] knob ................................................. 22

R

Rack-Mount Kit ...................................................... 35

RCA Pin ................................................................. 34

Reverb and Delay Time ......................................... 11

S

[SEND] jack ........................................................... 24

[SEND MASTER] section ...................................... 26

Shelving ................................................................. 18

[SOURCE]/[SOURCE SELECT] ............................ 25

[ST] switch ................................................. 19, 23, 26

Stereo input jack .................................................... 16

[STEREO] master fader ........................................ 27

[STEREO] section ................................................. 27

[STEREO OUT] jack .............................................. 25

U

[USB 2.0] jack ........................................................ 28

X

XLR ....................................................................... 34

Appendix

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual 37

MEMO

MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

38

ADDRESS LIST

HEAD OFFICE Yamaha Corporation, Audio Products Sales and Marketing Division

10-1, Nakazawa-cho, Naka-ku, Hamamatsu, Japan 430-8650

CANADA

Yamaha Canada Music Ltd.

135 Milner Avenue, Toronto, Ontario,

M1S 3R1, Canada

Tel: +1-416-298-1311

U.S.A.

Yamaha Corporation of America

6600 Orangethorpe Avenue, Buena Park, CA 90620,

U.S.A.

Tel: +1-714-522-9011

MEXICO

Yamaha de México, S.A. de C.V.

Av. Insurgentes Sur 1647 Piso 9, Col. San José

Insurgentes, Delegación Benito Juárez, México,

D.F., C.P. 03900

Tel: +52-55-5804-0600

BRAZIL

Yamaha Musical do Brasil Ltda.

Rua Fidêncio Ramos, 302 – Cj 52 e 54 – Torre B – Vila

Olímpia – CEP 04551-010 – São Paulo/SP, Brazil

Tel: +55-11-3704-1377

ARGENTINA

Yamaha Music Latin America, S.A.,

Sucursal Argentina

Olga Cossettini 1553, Piso 4 Norte,

Madero Este-C1107CEK,

Buenos Aires, Argentina

Tel: +54-11-4119-7000

VENEZUELA

Yamaha Musical de Venezuela, C.A.

AV. Manzanares, C.C. Manzanares Plaza,

Piso 4, Oficina 0401, Baruta, Caracas, Venezuela

Tel: +58-212-943-1877

PANAMA AND OTHER LATIN

AMERICAN COUNTRIES/

CARIBBEAN COUNTRIES

Yamaha Music Latin America, S.A.

Edif. Torre Banco General, Piso 7, Urbanización

Marbella, Calle 47 y Aquilino de la Guardia,

Ciudad de Panamá, República de Panamá

Tel: +507-269-5311

THE UNITED KINGDOM/IRELAND

Yamaha Music Europe GmbH (UK)

Sherbourne Drive, Tilbrook, Milton Keynes,

MK7 8BL, U.K.

Tel: +44-1908-366700

GERMANY

Yamaha Music Europe GmbH

Siemensstrasse 22-34, 25462 Rellingen, Germany

Tel: +49-4101-303-0

SWITZERLAND/LIECHTENSTEIN

Yamaha Music Europe GmbH, Rellingen,

Branch Switzerland in Zürich

Seefeldstrasse 94, 8008 Zürich, Switzerland

Tel: +41-44-3878080

AUSTRIA/BULGARIA

Yamaha Music Europe GmbH Branch Austria

Schleiergasse 20, 1100 Wien, Austria

Tel: +43-1-60203900

CZECH REPUBLIC/HUNGARY/

ROMANIA/SLOVAKIA/SLOVENIA

Yamaha Music Europe GmbH

Branch Austria

Schleiergasse 20, 1100 Wien, Austria

Tel: +43-1-60203900

POLAND/LITHUANIA/LATVIA/ESTONIA

Yamaha Music Europe GmbH

Sp.z o.o. Oddzial w Polsce

ul. Wrotkowa 14, 02-553 Warsaw, Poland

Tel: +48-22-880-08-88

MALTA

Olimpus Music Ltd.

Valletta Road, Mosta MST9010, Malta

Tel: +356-2133-2093

NETHERLANDS/BELGIUM/

LUXEMBOURG

Yamaha Music Europe Branch Benelux

Clarissenhof 5b, 4133 AB Vianen, The Netherlands

Tel: +31-347-358040

FRANCE

Yamaha Music Europe

7 rue Ambroise Croizat, Zone d'activités de Pariest,

77183 Croissy-Beaubourg, France

Tel: +33-1-6461-4000

ITALY

Yamaha Music Europe GmbH, Branch Italy

Viale Italia 88, 20020, Lainate (Milano), Italy

Tel: +39-02-93577-1

SPAIN/PORTUGAL

Yamaha Music Europe GmbH Ibérica, Sucursal

en España

Ctra. de la Coruna km. 17,200, 28231

Las Rozas de Madrid, Spain

Tel: +34-91-639-88-88

GREECE

Philippos Nakas S.A. The Music House

19th klm. Leof. Lavriou 190 02 Peania – Attiki,

Greece

Tel: +30-210-6686168

SWEDEN/FINLAND/ICELAND

Yamaha Music Europe GmbH Germany filial

Scandinavia

JA Wettergrensgata 1, 400 43 Göteborg, Sweden

Tel: +46-31-89-34-00

DENMARK

Yamaha Music Denmark,

Fillial of Yamaha Music Europe GmbH, Tyskland

Generatorvej 8C, ST. TH. , 2860 Søborg, Denmark

Tel: +45-44-92-49-00

NORWAY

Yamaha Music Europe GmbH Germany -

Norwegian Branch

Grini Næringspark 1, 1332 Østerås, Norway

Tel: +47-6716-7800

RUSSIA

Yamaha Music (Russia) LLC.

Room 37, entrance 7, bld. 7, Kievskaya street,

Moscow, 121059, Russia

Tel: +7-495-626-5005

OTHER EUROPEAN COUNTRIES

Yamaha Music Europe GmbH

Siemensstrasse 22-34, 25462 Rellingen, Germany

Tel: +49-4101-3030

Yam a h a M u s i c G u l f F Z E

JAFZA-16, Office 512, P.O.Box 17328,

Jebel Ali FZE, Dubai, UAE

Tel: +971-4-801-1500

TURKEY

Yamaha Music Europe GmbH

Merkezi Almanya Türkiye İstanbul Şubesi

Maslak Meydan Sodak, Spring Giz Plaza Bagimsiz

Böl. No:3, Sariyer Istanbul, Turkey

Tel: +90-212-999-8010

CYPRUS

Yamaha Music Europe GmbH

Siemensstrasse 22-34, 25462 Rellingen, Germany

Tel: +49-4101-303-0

OTHER COUNTRIES

Yam a h a M u s i c G u l f F Z E

JAFZA-16, Office 512, P.O.Box 17328,

Jebel Ali FZE, Dubai, UAE

Tel: +971-4-801-1500

THE PEOPLE’S REPUBLIC OF CHINA

Yamaha Music & Electronics (China) Co.,Ltd.

2F, Yunhedasha, 1818 Xinzha-lu, Jingan-qu,

Shanghai, China

Tel: +86-400-051-7700

INDIA

Yamaha Music India Private Limited

Spazedge Building, Ground Floor, Tower A,

Sector-47, Gurgaon- Sohna Road, Gurgaon-122002,

Haryana, India

Tel: +91-124-485-3300

INDONESIA

PT. Yamaha Musik Indonesia (Distributor)

Yamaha Music Center Bldg. Jalan Jend. Gatot

Subroto Kav. 4, Jakarta 12930, Indonesia

Tel: +62-21-520-2577

KOREA

Yamaha Music Korea Ltd.

8F, Dongsung Bldg. 21, Teheran-ro 87-gil,

Gangnam-gu, Seoul, 135-880, Korea

Tel: +82-2-3467-3300

MALAYSIA

Yamaha Music (Malaysia) Sdn. Bhd.

No.8, Jalan Perbandaran, Kelana Jaya, 47301

Petaling Jaya, Selangor, Malaysia

Tel: +60-3-78030900

SINGAPORE

Yamaha Music (Asia) Private Limited

Block 202 Hougang Street 21, #02-00,

Singapore 530202, Singapore

Tel: +65-6740-9200

TAIWAN

Yamaha Music & Electronics Taiwan Co.,Ltd.

2F., No.1, Yuandong Rd. Banqiao Dist.

New Taipei City 22063, Taiwan, R.O.C.

Tel: +886-2-7741-8888

THAILAND

Siam Music Yamaha Co., Ltd.

3, 4, 15, 16th Fl., Siam Motors Building,

891/1 Rama 1 Road, Wangmai,

Pathumwan, Bangkok 10330, Thailand

Tel: +66-2215-2622

VIETNAM

Yamaha Music Vietnam Company Limited

15th Floor, Nam A Bank Tower, 201-203 Cach

Mang Thang Tam St., Ward 4, Dist.3,

Ho Chi Minh City, Vietnam

Tel: +84-8-3818-1122

OTHER ASIAN COUNTRIES

Yamaha Corporation

Sales & Marketing Division

10-1, Nakazawa-cho, Naka-ku, Hamamatsu,

Japan 430-8650

Tel: +81-53-460-2312

AUSTRALIA

Yamaha Music Australia Pty. Ltd.

Level 1, 99 Queensbridge Street, Southbank,

VIC 3006, Australia

Tel: +61-3-9693-5111

COUNTRIES AND TRUST

TERRITORIES IN PACIFIC OCEAN

Yamaha Corporation

Sales & Marketing Division

10-1, Nakazawa-cho, Naka-ku, Hamamatsu,

Japan 430-8650

Tel: +81-53-460-2312

NORTH AMERICA

CENTRAL & SOUTH AMERICA

EUROPE

AFRICA

MIDDLE EAST

ASIA

OCEANIA

PA42

Manual Development Group

© 2014 Yamaha Corporation

Published 08/2016 POLE*.*-01E0

Printed in Malaysia

ZT44570

Yamaha Pro Audio global website

http://www.yamahaproaudio.com/

Yamaha Downloads

http://download.yamaha.com/