EMX88s
Owner’s Manual
Keep This Manual For Future Reference.
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The Owner’s Manual Revisions
Thank you for purchasing the Yamaha EMX88S/EMX68S Powered Mixer. Parts of the EMX88S, EMX68S owner’s manual have been
revised. Please refer to the following revisions rather than the corresponding sections of the original owner’s manual.
P.12
MAIN section
F
Level Meter
This LED display shows the level of signals received at the
MAIN (STEREO) jack (input/output panel 7 ).
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 (M).
MONITOR section
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P.30
Block and Level diagram
PA
SPEAKERS OUT
MAXIMUM OUTPUT [400W/4Ω]
NOMINAL OUTPUT [80W/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
will deliver 80W into a 4Ω load. If the output level is +11dB
(LIMITER indicator lights), the internal amplifier will deliver
a maximum of 400W into a 4Ω load. If you are using the
BRIDGE jack, the internal power amplifier will deliver 160W
into an 8Ω load with a +4dB signal and a maximum of 800W
into an 8Ω load with a +11dB signal.
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+30dB
+20dB
+10dB
0dB
Level Meter
This LED display shows the level of signals received at the
MONITOR OUT jack (input/output panel 7).
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
level via the LIMITER indicator (M).
P.13
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 controls (EJ) below the level that the indicator flashes only briefly on the highest
transient peaks.
If the LIMITER indicator flashes continuous-
M
EMX88S/EMX68S
1
Block and Level diagram
[+4dB]
LED METER (5 point)
MASTER
(CH1-6)
(CH1-8)
STAND-BY
[–6dB]
PAN
EFFECT
[0dB]
BA
LEVEL
[–16dB]
[–10dB]
3-Stage EQ
PAD
[–10dB]
HA
+15V
OFF
ON
PHANTOM
MAIN L
[+4dB]
BA
[–6dB]
7-Stage GEQ
[0dB]
INV
SUM SUM
[–16dB]
MONITOR
Hi
Mid
Lo
(30dB)
[–10dB]
SPEAKERS OUT
1
212
MAIN R
8kHz
8kHz
4kHz
4kHz
2kHz
2kHz
1kHz
1kHz
500Hz
500Hz
250Hz
250Hz
125Hz
125Hz
PAN
[0dB]
BA
LEVEL
[–16dB]
[–10dB]
3-Stage EQ
SUM
[–10dB]
HA
A [400W/4Ω]
[+4dB]
[+4dB]
BA
7-Stage GEQ
[0dB]
SUM
INV
SUM
[–6dB]
EFFECT
Hi
Mid
Lo
PAD
(30dB)
BA
2
1
YSP ON/OFF
MONO
STEREO
MONO BRIDGE
[–6dB]
[–16dB]
MONITOR
L
2
LIMITER
INV
SUM
[–10dBV]
REC OUT
BAL
[0dB]
LEVEL
[–10dB]
3-Stage EQ
[–10dB]
HA
BRIDGE [800W/8Ω]
1
[–7.8dB]
R
BA
BA
[–16dB]
EFFECT
Hi
Mid
Lo
[–6dB]
B [400W/4Ω]
1
212
STEREO
MONO (BRIDGE)
MAIN (L+R)-MON
[–6dB]
[–16dB]
[–16dB]
MONITOR
[0dB]
BA
[–16dB]
3-Stage EQ
BA
2
1
LIMITER
YSP ON/OFF
[+4dB]
MASTER
[0dB]
[0dB]
SUM
[–16dB]
AUX IN
L/MONO
MONITOR
[+4dB]
BA
[–6dB]
7-Stage GEQ
INV
SUM SUM
[0dB]
SUM
[–16dB]
[–10dB]
AUX IN
LED METER (5 point)
8kHz
4kHz
2kHz
1kHz
500Hz
250Hz
125Hz
[–13.8dB]
2TR IN
R
+40dB
+30dB
+20dB
+10dB
0dB
–10dB
–20dB
[80W/4Ω]
SPEAKERS OUT
NOMINAL OUTPUT
TAP SW
MONITOR
EFFECT
MAIN R
MAIN L
MAXIMUM OUTPUT [400W/4Ω]
MAIN OUT [+4dB]
MONITOR (NON-MUTE)
MAIN R (NON-MUTE)
MAIN L (NON-MUTE)
AUX, 2TR [0dB]
MAIN [0dB]
Clip Level [+20dB]
Super Hi-Z PAD:ON [0dB]
MONITOR OUT [+4dB]
EFFECT OUT [+4dB]
REC OUT [–10dBV]
MONITOR [–16dB]
EFFECT [–6dB]
LEVEL
AUX IN [–10dB]
2TR IN [–10dBV]
[–10dB]
LINE IN
Lo-Z PAD:ON [–20dB]
Hi-Z PAD:ON [–10dB]
Lo-Z PAD:OFF [–50dB]
Super Hi-Z [–30dB]
Hi-Z PAD:OFF [–40dB]
MIC [–50dB]
EFF OUT
[+4dB]
[+4dB]
BA
[–6dB]
INV
SUM SUM
[0dB]
[0dB]
BA
BA
[–13.8dB]
[–13.8dB]
2TR IN
[–13.8dB]
IN
R
L
[–10dBV]
[–7.8dB]
2TR IN
[–12dB]
EFF RTN
L0
PROGRAM
[–12dB]
EFF RTN
DIGITAL EFFECT ON
R0
EFFECT
DIGITAL
PARAMETER
TAP
FOOT SW
Low-Z
[–50/–20dB]
6
EMX88S/EMX68S
Hi-Z
[–40/–10dB]
CH INPUT
(CH1-2)
(CH1-4)
Low-Z
[–50/–20dB]
CH INPUT
(CH3-4)
(CH5-6)
Super Hi-Z
[–30/0dB]
MIC
[–50dB]
L/MONO
CH INPUT
(CH5-6)
(CH7-8)
LINE
[–10dB]
R
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+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.
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.
Precautions
WARNING
3
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. F ailure
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 po wer cor d is a fire and electrical shock
hazard. In particular, be careful not to place heavy objects on a
power cord covered by a carpet.
• Use only the included power cord for this unit. Using other
types may be a fire and electrical shock hazard.
• The power to this device is not completely shut off even when
the power switch is turned off. Locate the device close to the A C
outlet so you can easily reach the power plug.
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 b e dro pped or the cab inet be damag ed, 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 pr event the internal
temperature rising too high. Do not block them. Blocked ventilation holes are a fire hazard.
• W hen rack-mounting the unit, allow enough free space ar ound
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
• U sing a c ell pho ne (mobile t elephone) 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.
EMX88S/EMX68S—Owner’s Manual
4
Precautions
EMX88S/EMX68S—Owner’s Manual
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