Yamaha Audio EMX66M User Manual
EEEngine
E
Owner’s Manual
2
HIGH
–15
MID
–15
LOW
–15
MONITOR
EFFECT
LEVEL
0
PAD
0
0
Low-Z
1
HIGH
+15
MID
+15
LOW
+15
MONITOR
+15
EFFECT
+15
LEVEL
10
1
Hi-Z
3
HIGH
HIGH
+15
–15
+15
–15
MID
MID
+15
–15
+15
–15
LOW
LOW
+15
–15
+15
–15
MONITOR
MONITOR
0
+15
0
+15
EFFECT
EFFECT
+15
0
+15
0
LEVEL
LEVEL
10
0
PAD
Low-Z
10
0
PAD
2
Hi-Z
PAD
3
Hi-Z
Low-Z
45
HIGH
–15
+15
–15
MID
–15
+15
–15
LOW
–15
+15
–15
MONITOR
0
0
+15
EFFECT
0
+15
0
LEVEL
0
10
0
PAD
4
LINE
1
Hi-Z
2
MIC
Low-Z
6
HIGH
DIGITAL
EFFECT
+12
+15
+15
–15
MID
+15
+15
–15
LOW
+15
+15
–15
MONITOR
+15
0
+15
EFFECT
+15
+15
0
LEVEL
10
10
0
PAD
5
6
Super Hi-Z
1
2
MIC
VOCAL ECHO 1
VOCAL ECHO 2
VOCAL
REVERB 1
VOCAL
REVERB 2
HALL 1
HALL 2
ROOM
PLATE
ON
EFFECT
EFFECT OUT
FOOT SW
6
0
6
–12
125 250
0
EFFECT RTN
+12
6
0
6
–12
125 250
0
EFFECT RTN
INPUT TO MAIN
AUX IN
500 1k
2k 4k 8k
GEQ
10
MONITOR
500 1k
2k 4k 8k
GEQ
0
10
10
AUX IN
MAIN
OUT PUT
2TR
REC
IN
OUT
11
2
2
+12
6
0
6
–12
0
10
0
2TR IN
MASTER
+12
6
0
6
–12
0
10
0
2TR IN
MAIN
MONITOR
SEE REAR PANEL CAUTION
MASTER
EEEngine
+6
PHANTOM
+3
0
ON
-5
-10
OFF
POWER AMP
LIMITER
10
MAIN
MON
MAIN
MAIN
MAIN
+6
BRIDGE
+3
0
A
B
-5
YAMAHA
SPEAKER
-10
PROCESSING
10
power
ON /
OFF
Keep This Manual For Future Reference.
■
C
■
H
■
I
■
The Owner’s Manual Revisions
E
Thank you for purchasing Yamaha EMX66M Powered Mixer. Parts of the EMX66M owner’s manual have been revised. Please refer
to the following revisions rather than the corresponding sections of the original owner’s manual.
P.10
MAIN section
+6
I
+12
+3
6
0
0
6
–12
C
-5
-10
).
+12
6
0
6
–12
125 250
500 1k
GEQ
2k 4k 8k
Level Meter
This LED display shows the level of signals received at the
MAIN OUT jack (input/output panel 6 ).
Note: The SPEAKERS 1 & 2 jacks (rear panel 1 ) out-
put the signals received at the MAIN OUT jack via the
internal power amplifier. Check the output signal level
via the LIMITER indicator (
P.28
Block and Level diagram
PA
SPEAKERS OUT
MAXIMUM OUTPUT [300W/4Ω]
NOMINAL OUTPUT [60W/4Ω]
+11dB
+4dB
Power Amplifier output section level diagram (bottom right)
These plots show the nominal output and maximum output
levels of signals received at the SPEAKERS jacks. If the output
level is +4dB (Level Meter “0”), the internal power amplifier
+30dB
+20dB
+10dB
0dB
will deliver 60W into a 4Ω load. If the output level is +11dB
P.11
MONITOR section
+12
6
0
6
–12
125 250
500 1k
GEQ
2k 4k 8k
+6
+12
+3
6
0
0
6
–12
H
-5
-10
(LIMITER indicator lights), the internal amplifier will deliver
a maximum of 300W into a 4Ω load. If you are using the
BRIDGE jack, the internal power amplifier will deliver 120W
Ω
into an 8
load with a +4dB signal, and a maximum of 600W
into an 8Ω load with a +11dB signal.
Level Meter
This LED display shows the level of signals received at the
MONITOR OUT jack (input/output panel 6 ).
Note:
The SPEAKERS 1 & 2 jacks (rear panel 1) output the signals received at the MONITOR OUT jack via
the internal power amplifier. Check the output signal
I
level via the LIMITER indicator (
).
POWER AMP section
LIMITER indicator
If the output level of signals
received at the SPEAKERS output
jacks (output of the internal power
amplifier) reaches maximum, the
indicator will light.
Caution:
ly, the internal power amplifier section is being excessively overloaded and may malfunction. Reduce the
output level at the Master control (
that the indicator flashes only briefly on the highest
transient peaks.
If the LIMITER indicator flashes continuous-
POWER AMP
LIMITER
MAIN
MAIN
MAIN
BG
) below the level
MON
MAIN
I
EMX66M
1
6
EMX66M
CH INPUT
(CH1-4)
CH INPUT
[CH5]
CH INPUT
[CH6]
[-50/-20dB]
[-40/-10dB]
SUPER Hi-Z
[-30dB]
Low-Z
Hi-Z
MIC
[-50dB]
LINE
[-10dB]
MIC
[-50dB]
1
2
1
2
[10dB]
AUX IN
[-10dB]
2TR IN
[-10dB]
[-7.8dB]
VOCAL ECHO1
VOCAL ECHO2
VOCAL REVERB1
VOCAL REVERB2
HALL1
HALL2
ROOM
PLATE
FOOT SW
PHANTOM
OFF
ON
HA
HA
HA
BA
BA
1
2
DIGITAL EFFECT MITE
[-10dB]
[-10dB]
[-10dB]
[-10dB]
[-10dB]
+15V
PAD
[30dB]
[-22dB]
[-22dB]
[-16dB]
BA
DIGITAL
[-10dB]
BA
[-10dB]
BA
2TR IN
DIGITAL EFFECT ON
EFFECT
AUX IN
3-Stage EQ
LOW
MID
3-Stage EQ
LOW
MID
3-Stage EQ
LOW
MID
[-16dB]
[-22dB]
[-22dB]
[0dB]
ON
HIGH
HIGH
HIGH
LEVEL
LEVEL
LEVEL
[-16dB]
EFFECT
[-22dB]
MONITOR
[-16dB]
[-16dB]
EFFECT
[-22dB]
MONITOR
[-16dB]
[-16dB]
EFFECT
[-22dB]
MONITOR
[-16dB]
[0dB]
SUM
[0dB]
INV
EFFECT RETURN
[-6dB]
EFFECT RETURN
[-6dB]
MAIN
MAIN
EFFECT
MONITOR
EFFECT
MONITOR
SUM
SUM
SUM
[0dB]
[0dB]
[-6dB]
MASTER
[-6dB]
MASTER
[-6dB]
1
2
BA
REC OUT
[-10dB]
[-7.8dB]
BA
BA
[+4dB]
[+4dB]
[+4dB]
7-Stage GEQ
125Hz
250Hz
500Hz
7-Stage GEQ
125Hz
250Hz
1kHz
500Hz
2kHz
1kHz
4kHz
2kHz
8kHz
4kHz
LED METER(5 point)
8kHz
LED METER(5 point)
INV
MAIN-BRIDGE
MAIN-MAIN
MAIN-MON
POWER AMP
YSP ON/OFF
YSP ON/OFF
MAIN OUT
[+4dB]
LIMITER
LIMITER
MONITOR OUT
[+4dB]
EFFECT OUT
[+4dB]
■
Block and Level diagram
SPEAKERS OUT
2
1
1
2
1
2
1
2
1
2
1
A
[300W/4Ω]
2
BRIDGE
[600W/8Ω]
1
B
[300W/4Ω]
2
+40dB
+30dB
+20dB
+10dB
0dB
-10dB
+20dB
-30dB
-40dB
-50dB
LINE(CH5)[-10dB]
Hi-z PAD: ON[-10dB]
Low-Z PAD: ON[-20dB]
SUPER Hi-Z(CH6)[-30dB]
Hi-Z PAD:OFF[-40dB]
Low-Z PAD:OFF[-50dB]
MIC(CH5,6] [-50dB]
2TR IN
AUX IN
[-10dB]
Clip Level [+20dB]
[-10dBV(-7.8dB)]
CH5,6 [-22dB]
2TR IN
AUX IN
LEVEL MONTOR
EFFECT
AUX,2TR [0dB]
MAIN, MONITOR [-16dB]
EFFECT [-22dB]
REC OUT [-10dBV] [-7.8dB]
MAIN OUT
MONITOR OUT
EFFECT OUT
[+4dB]
[+4dB]
[+4dB]
SPEAKERS OUT
MAXIMUM OUTPUT [300W/4Ω]
NOMINAL OUTPUT [60W/4Ω]
+40dB
+30dB
+20dB
+10dB
0dB
-10dB
+20dB
-30dB
-40dB
-50dB
FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC
requirements. Modifications 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 requirements 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 equipment 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
installations. If this product is found to be the source of interference, 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 coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer
authorized to distribute 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, CA 90620
The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
• Explanation of Graphical Symbols
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
The above warning is located on the
rear of the unit.
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.
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.
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.
SPEAKERS
B
BRIDGE
1122
A
European Specifications Only
This mark indicates a dangerous electrically live terminal.
When connecting an external wire to this terminal, it is
necessary either to have “a person who have received
appropriate guidance on handling” make the connection or to
use leads or a cord that have been manufactured in such a way
that the connection can be made simply and without problem.
WARNING
3
Precautions
Installation
• Connect this unit’s power cord only to an AC outlet of the type
stated in this Owner’s Manual or as marked on the unit. Failure
to do so is a fire and electrical shock hazard.
• Do not allow water to enter this unit or allow the unit to
become wet. Fire or electrical shock may result.
• Do not place a container with liquid or small metal objects on
top of this unit. Liquid or metal objects inside this unit are a fire
and electrical shock hazard.
• Do not place heavy objects, including this unit, on top of the
power cord. A damaged power cord is a fire and electrical shock
hazard. In particular, be careful not to place heavy objects on a
power cord covered by a carpet.
• The power to this device is not completely shut off even when
the power switch is turned off. Locate the device close to the AC
outlet so you can easily reach the power plug.
• Use only the included power cord for this unit. Using other
types may be a fire and electrical shock hazard.
Operation
• Do not scratch, bend, twist, pull, or heat the power cord. A
damaged power cord is a fire and electrical shock hazard.
• Do not remove the unit’s cover. You could receive an electrical
shock. If you think internal inspection, maintenance, or repair
is necessary, contact your dealer.
• Do not modify the unit. Doing so is a fire and electrical shock
hazard.
• If lightning begins to occur, turn off the power switch of the
unit as soon as possible, and unplug the power cable plug from
the electrical outlet.
• If there is a possibility of lightning, do not touch the power
cable plug if it is still connected. Doing so may be an electrical
shock hazard.
In case an abnormality occurs during operation
• If the power cord is damaged (i.e., cut or a bare wire is
exposed), ask your dealer for a replacement. Using the unit
with a damaged power cord is a fire and electrical shock hazard.
• Should this unit be dropped or the cabinet be damaged, turn the
power switch off, remove the power plug from the AC outlet,
and contact your dealer. If you continue using the unit without
heeding this instruction, fire or electrical shock may result.
• If you notice any abnormality, such as smoke, odor, or noise, or
if a foreign object or liquid gets inside the unit, turn it off
immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a
fire and electrical shock hazard.
CAUTION
Installation
• Hold the power cord plug when disconnecting it from an AC
outlet. Never pull the cord. A damaged power cord is a potential fire and electrical shock hazard.
• Do not touch the power plug with wet hands. Doing so is a
potential electrical shock hazard.
• This unit has ventilation holes at the rear to prevent the internal
temperature rising too high. Do not block them. Blocked ventilation holes are a fire hazard.
• When rack-mounting the unit, allow enough free space around
the unit for normal ventilation. This should be10 cm at the
sides, 15 cm behind, and 25 cm above.
For normal ventilation during use, remove the rear of the rack
or open a ventilation hole.
If the airflow is not adequate, the unit will heat up inside and
may cause a fire.
Operation
• Use only speaker cables when connecting speakers to amplifier
outputs. Using other types of cables is a fire hazard.
Maintenance
• Clean the contacts of the phone plug before connecting it to the
SPEAKERS jack of this unit. Dirty contacts may generate heat.
PRECAUTIONS FOR OPERATION – FOR CORRECT OPERATION –
Connector pin assignments
• XLR-type connectors are wired as follows: pin 1: ground, pin 2:
hot (+), and pin 3: cold (-).
Replacing abrasive parts
• The performance of components with moving contacts, such
switches, rotary controls, faders, and connectors, deteriorates
over time. The rate of deterioration depends on the operating
environment and is unavoidable. Consult your dealer about
replacing defective components.
Influence on cell phone usage
• Using a cell phone (mobile telephone) near this unit may induce
noise. If noise occurs, use the telephone away from the unit.
Volume level setting
• Do not set all equalizer controls and faders to maximum.
Doing so may cause oscillation depending on the condition of
the connected unit and speakers, and may damage the speakers.
EMX66M—Owner’s Manual
4
EMX66M—Owner’s Manual
Introduction
Thank you for purchasing the Yamaha EMX66M Powered Mixer.
In order to take full advantage of the EMX66M and enjoy long and trouble-free performance, please read this owner’s manual carefully, and keep it in a safe place for future
reference.
5
Features
• The EMX66M provides six input channels compatible with mic/line signals, including highimpedance input suitable for an electric-acoustic
guitar. The EMX66M has ample power, with a
maximum output of 300 W+300 W (600 W with
bridge connection), and is suitable for a wide
range of applications from installed systems to
small-scale PA systems.
• A two-channel power amp is built-in. The input
signals for the two channels can be selected as
MAIN+MAIN, MAIN+MONITOR, or MAIN
(bridge connection).
• Independent 7-band graphic EQ is provided for
both the MONITOR section and the MAIN section. This allows the volume and frequency
response to be adjusted separately for the main
speakers and monitor speakers.
• The power amp section has a limiter circuit to
prevent sound distortion and protect the speakers.
Contents
Introduction............................................................5
Features ................................................................5
EMX66M Quick Guide ................................................6
Front and rear panel ...................................................9
Control panel ........................................................9
Input/output panel............................................... 13
Rear panel.......................................................... 15
Installation/Connection ............................................. 16
Installation ......................................................... 16
Connection ........................................................ 16
Basic Operation ........................................................19
Connecting microphones and instruments .........19
Monitoring ........................................................... 19
Using the digital effect ........................................19
Example setups ........................................................20
As a conference PA system/
installed sound system ...................................... 20
As a band PA...................................................... 21
Installing an optional rack mount kit .........................23
• A digital effect with eight selectable effect types is
built-in. A variety of effects can be applied to add
reverberation or ambiance to vocals or instrumental sounds.
• The EMX66M has implemented “EEEngine”,
Yamaha’s epochal amp drive technology to create
an unrivaled high-efficiency drive.
The EEEngine’s energy-saver/low-heat-generation design has reduced power consumption to
50% or less, and reduced heat generation to 35%
or less (in field applications, compared to
Yamaha’s previous models), and has lead to a
reduction in energy cost and to less-restrictive
installation requirements related to heat generation.
Troubleshooting .......................................................24
Specifications ........................................................... 25
General specifications ........................................25
Input specifications .............................................26
Output specifications ..........................................26
Dimensions ......................................................... 27
Block and Level diagram ....................................28
EMX66M—Owner’s Manual
EMX66M Quick Guide
6
EMX66M Quick Guide
The following steps (1–5) explain the basic connection and operation of the EMX66M.
Also, please read “Front and Rear Panel” and
“Basic Operation” following this Quick Guide
section to learn more about using the EMX66M.
SPEAKERS
STEP 1
Connection
Connecting speakers
Using speaker cables, connect each speaker to the
A 1 or 2 jack and to the B 1 or 2 jack in the
SPEAKERS jack section on the rear panel of the
EMX66M.
SPEAKERS
SPEAKERS
BRIDGE
BRIDGE
1122
1122
EMX66M
EMX66M
B
B
• You may connect to either of the two jacks on the
speakers.
• Be sure to use a cable designed for speaker connection.
Never connect the speakers in the manner shown
below. Otherwise, the EMX66M’s built-in power
amplifier will be damaged.
B
EMX66M
BRIDGE
1122
A
Setting the power amplifier mode
Set the power amp select switch (located on the
right corner on the panel) to MAIN-MAIN.
EMX66M
MAIN
MAIN
Power amp select switch
MAIN
BRIDGE
MON
MAIN
• This Quick Guide assumes that two main speakers
are connected. Refer to pages 16–17 for other con-
A
A
nections and power amp select switch settings.
Connecting a microphone
Make sure that the power is turned off to the
EMX66M.
Connect a microphone to the Low-Z jack of
channel 1–4.
EMX66M
Hi-Z
Low-Z
Hi-Z
Low-Z
Hi-Z
Low-Z
Hi-Z
Low-Z
SPEAKERS
BRIDGE
EMX66M
EMX66M—Owner’s Manual
A
Microphone
Using a condenser microphone
Turn on the PHANTOM switch (located in the upper
right corner on the panel).
EMX66M
PHANTOM
12
• Do not connect or disconnect a condenser microphone while the power to the unit is on and the
PHANTOM switch has been turned on.
ON
OFF
PHANTOM switch
Connecting a CD player, MD player, and/or cassette
deck
Connect a CD player or MD player to the 2TR IN
jacks. Refer to the operation manual of the corresponding device for more information on the
input and output of the device.
EMX66M
INPUT TO MAIN
2
OUT PUT
2TR
REC
IN
OUT
11
2
EMX66M Quick Guide
Connecting an electronic musical instrument
To the EMX66M’s LINE jacks, you can connect
an electronic musical instrument such as a synthesizer, drum machine, signal processor connected to an electric guitar, etc. Refer to the
diagram below to make a stereo connection from
the output jacks (such as L/MONO and R) of an
electronic musical instrument to the LINE jacks
in stereo.
EMX66M
Super Hi-Z
LINE
1
2
1
2
7
• To connect a second player, use the LINE jack or HiZ jack.
• You cannot use the Hi-Z jack and the Low-Z jack for
the same channel at the same time. If a microphone
has already been connected to the Low-Z jack of a
channel, you cannot connect a player to the Hi-Z
jack of the channel.
• Connect a recorder to the REC OUT jacks.
Connecting an electric acoustic guitar or electric bass
Connect an electric acoustic guitar or electric
bass to the Super Hi-Z jacks.
You can use either or both of the 1 and 2 jacks.
EMX66M
Super Hi-Z
LINE
1
2
Electric-acoustic
guitar
• If you wish to use a guitar signal processor or bass
effect unit, connect them to the Hi-Z jack or LINE
jack. You cannot use the Hi-Z jack and the Low-Z
jack for the same channel at the same time. If a
microphone has already been connected to the LowZ jack of a channel, you cannot connect the effect
unit to the Hi-Z jack of the channel.
1
2
Electric
bass
Synthesizer, drum machine, guitar processor, etc.
If you wish to connect multiple instruments,
make a monaural connection as shown below.
EMX66M
Super Hi-Z
LINE
1
2
• You can also use the Hi-Z jacks and Super Hi-Z jacks
to connect multiple instruments. You cannot use the
Hi-Z jack and the Low-Z jack for the same channel at
the same time. If a microphone has already been connected to the Low-Z jack of a channel, you cannot
connect an instrument to the Hi-Z jack of the channel.
1
2
EMX66M—Owner’s Manual
EMX66M Quick Guide
5
+15
0
+15
+15
8
STEP 2
Power on
1 Turn on the power to all external devices con-
nected to the EMX66M.
2 Make sure that the MASTER controls in the
MONITOR section and the MAIN section are set
to “0,” then press the POWER switch on the
EMX66M to turn on the power.
EMX66M
500 1k
2k 4k 8k
GEQ
0
2TR IN
MONITOR
500 1k
2k 4k 8k
GEQ
0
0
10
AUX IN
2TR IN
MAIN
• Be sure to follow the power up sequence specified
above to prevent the speakers from being damaged.
STEP 3
Sound output
+6
+12
+3
6
0
6
-10
—12
10
0
MASTER
+6
+12
+3
6
0
6
—12
-10
10
0
MASTER
Set the MASTER control in the MAIN section to
√√√√
,” then while playing an instrument con-
“
nected to a channel to be checked (or while
speaking to a connected microphone), adjust the
LEVEL control of the corresponding channel so
that the 0 LED of the peak level indicator in the
MAIN section will light up momentarily.
• Do not press the PAD switch if sound is input from
the microphone. Otherwise, press the PAD switch
on.
STEP 4
Applying built-in effects
1 Turn on the ON switch in the DIGITAL EFFECT
section. The ON switch indicator lights up.
2 Select one of eight effect types, then press the
switch.
3 Adjust the amount of effect applied by using the
EFFECT control of the target channel and the
EFFECT RTN control in the MAIN section.
0
-5
EMX66M
10
0
-5
EFFECT
EFFECT
+15
10
STEP 5
0
Power off
EFFECT
+15
0
6
–12
500 1k
125 250
0
10
EFFECT RTN
EFFECT
EFFECT
+15
0
+15
0
2k
GEQ
0
10
AUX IN
MAIN
EFFECT
+15
0
+15
0
1 Press the POWER switch of the EMX66M to turn
off the power to the unit.
2 Turn off the power to all connected devices.
• Be sure to follow the power off sequence specified
above to prevent the speakers from being damaged.
• Set the MASTER controls in the MAIN section
and the MONITOR section to “0” for use next
time (so that a loud noise will not sound the next
time you turn on the power to the unit).
EMX66M
PAD
1
• To correct the low range, turn on the YAMAHA
SPEAKER PROCESSING switch on the right of the
panel.
• Note that if the LIMITER indicator stays lit for a long
time, the built-in amplifier and speakers may be
damaged.
EMX66M—Owner’s Manual
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