Yamaha XMV4140, XMV4280 User Manual

JA

ZH

RU

IT

ES

FR

DE

EN

POWER AMPLIFIER

日本語 中文

Owner’s Manual

Bedienungsanleitung

Mode d’emploi

Manual de instrucciones

Manuale di istruzioni

Руководство пользователя

取扱説明書

EnglishDeutschFrançaisEspañolItalianoРусский

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

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.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

ADVARSEL!

Lithiumbatteri—Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det
brugte batteri tilbage til leverandoren.

VARNING

Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens instruktion.

VARO ITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden mukaisesti.

(lithium caution)

IMPORTANT SAFETY INSTRUCTIONS

Explanation of Graphical Symbols

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.

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 radia-

tors, heat registers, 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 particularly at plugs, convenience recepta-
cles, 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 combination 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. Ser-

vicing 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.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

(UL60065_03)

XMV4280/XMV4140 Owner’s Manual

2

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 co-axial 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, CA90620

The above statements apply ONLY to those products distrib­uted by Yamaha Corporation of America or its subsidiaries.

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

FCC INFORMATION (U.S.A.)

COMPLIANCE INFORMATION STATEMENT

(DECLARATION OF CONFORMITY PROCEDURE)

Responsible Party : Yamaha Corporation of America

Address : 6600 Orangethorpe Ave., Buena Park,

Calif. 90620

Telephone : [phone]

Type of Equipment : Power Amplifier

Model Name : XMV4280/XMV4140

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)

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

WAR NING: 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 colored GREEN or
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.

(3 wires)

In Finland: Laite on liitettävä suojamaadoituskoskettimilla varustettuun pistorasiaan.
In Norway: Apparatet må tilkoples jordet stikkontakt.
In Sweden: Apparaten skall anslutas till jordat uttag.

(class I hokuo)

This product contains a battery that contains perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.

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

이 기기는 가정용(B급) 전자파적합기기로서 주로 가정에서 사용하는 것을 목적으
로 하며, 모든 지역에서 사용할 수 있습니다.

(class b korea)

XMV4280/XMV4140 Owner’s Manual

3

PRECAUTIONS

Power supply/Power cord

Do not open

Water warning

Fire warning

If you notice any abnormality

Power supply/Power cord

Location

Connections

Maintenance

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:

• 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.

• 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.

CAUTION

• 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.

• Do not put burning items, such as candles, on the unit. A burning item may
fall over and cause a fire.

• 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 instrument.

- 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.

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:

• When setting up the device, make sure that the AC outlet you are using is

• 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.

• 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 front/rear/
side 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 use the device in a confined, poorly-ventilated location. If this device
is to be used in a small space other than an EIA-standard rack, make sure
that there is adequate space between the device and surrounding walls or
other devices: at least 10 cm at the sides, 10 cm behind and 40 cm above.
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.

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.

• If the device is mounted in an EIA standard rack, carefully read the section
“Precautions for Rack Mounting” on page 7. Inadequate ventilation can
result in overheating, possibly causing damage to the device(s),
malfunction, or even fire.

• 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.

• Use only speaker cables for connecting speakers to the speaker connectors.
Use of other types of cables may result in fire.

• Remove the power plug from the AC outlet when cleaning the device.

XMV4280/XMV4140 Owner’s Manual

4

PA_en_1 1/2

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

Handling caution

Backup battery

(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

• This device has a built-in backup battery. When you unplug the power cord
from the AC outlet, the internal data is retained. However, if the backup
battery fully discharges, this data will be lost. When the backup battery is
running low, the display indicates “010.” or “011.” and the ALERT indicator
is blinking. In this case, immediately save the data to external device such as
a computer, then have qualified Yamaha service personnel replace the
backup battery.

use excessive force on the buttons, switches or connectors.

• Do not use speakers 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.

Yamaha cannot be held responsible for damage caused by improper use or modifications to the device, or data that is lost or destroyed.

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

European Models

Inrush Current based on EN 55103-1:2009
10A (on initial switch-on)
5A (after a supply interruption of 5s)
Conforms to Environments: E1, E2, E3 and E4

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 internal 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-impregnated 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.

• Do not use this device for any purpose other than driving loudspeakers.

• When turning on the AC power in your audio system, always turn on tthe device LAST, to avoid speaker damage. When turning the
power off, the device should be turned off FIRST for the same reason.

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

 Saving data

This device has a built-in backup battery that maintains data in internal memory even when the device’s power is switched off. The
backup battery will eventually become depleted, however, and when that happens the contents of the internal memory will be lost.*
To prevent loss of data be sure to replace the backup battery before it becomes fully depleted. When the remaining capacity of the
backup battery becomes so low that it needs to be replaced a “010.” or “011.” message will appear on the display during operation or
when the device is powered on. If either of these messages appears do not turn off the power and immediately transfer any data you
want to save to a computer or other external storage device, then have qualified Yamaha service personnel replace the backup battery.
The average life of the internal backup battery is approximately 5 years, depending on operating conditions.

* Data items maintained in the internal memory by the backup battery are as follows:

• Device parameters (Attenuator values, Polarity settings, HPF settings, Analog/digital input setting, and [SIGNAL] indicator display
setting).

• Event log.

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.

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

PA_en_1 2/2

XMV4280/XMV4140 Owner’s Manual

5

Contents

Introduction.....................................................................................................................7

Features.................................................................................................................................. 7

Related manuals and software................................................................................................ 7

Firmware Updates................................................................................................................... 7

Precautions for Rack Mounting ........................................................................................ 7

Controls and Functions .................................................................................................8

Front Panel.............................................................................................................................. 8

Rear Panel............................................................................................................................ 10

Setup..............................................................................................................................13

Using and connecting the [REMOTE] connector and

[FAULT OUTPUT] connector ......................................................................................18

Using the [REMOTE] connector (Euroblock 3-pin) ............................................................... 18

Using the [FAULT OUTPUT] connector (Euroblock 3-pin) .................................................... 18

Connecting the [REMOTE] connector or [FAULT OUTPUT] connector ................................ 19

List of Front Panel Operations ....................................................................................20

Initializing the Internal Memory...................................................................................22

Troubleshooting ...........................................................................................................23

Alert Numbers and Content.........................................................................................24

High-impedance and Low-impedance Connections .................................................25

Multiple Speaker System Drive Capability ............................................................................ 25

Transmission Distance and Efficiency................................................................................... 26

Specifications .............................................................................................................201

XMV4280/XMV4140 Block Diagram...........................................................................203

Dimensions .................................................................................................................203

Current Draw ...............................................................................................................204

Included items (please check)

• Owner’s Manual

•Power cord

• Euroblock plugs (3-pin) x 2

• Euroblock plugs with tabs (3-pin) x 4

• Cable ties x 4

XMV4280/XMV4140 Owner’s Manual

6

Introduction

Thank you for your purchase of the Yamaha XMV4280 or XMV4140 power amplifier. Please read

through this manual carefully before beginning use, so that you will be able to take full advantage of

your power amplifier’s superlative features and enjoy trouble-free operation for years to come.

After you have read the manual, keep it in a safe place for reference when needed.

NOTE

• When there are differences in the specifications of the XMV4280 and the XMV4140, this manual will use curly brackets { } to
enclose information that applies only to the XMV4140.
(Example: 280W {140W}).

• Unless otherwise specified, illustrations are taken from the XMV4280.

Features Related manuals and software

The XMV is a multi-channel power amplifier with the follow­ing features.

• Both high-impedance and low-impedance connec­tions are supported

Both high-impedance connections to 70V/100V lines and
4Ω/8Ω low-impedance connections are supported. A rear
panel DIP switch allows this setting to be specified for every
two channels.

• Newly-developed “Double Power mode”

The newly-developed “Double Power mode” doubles the
amplifier output of each channel when low-impedance con­nections are used.

* The number of available channels will be halved.

•Settings can be made via application software

Although settings such as mute on/off and attenuator values
can be edited from the panel of the amplifier itself, you can
use an MTX series matrix processor and computer to edit the
settings of multiple XMV units.

• Support for the newly-developed “YDIF” digital
audio transmission format

This allows up to 16 channels of audio and word clock to be
transmitted and received via an Ethernet cable.
This model can receive four channels of audio signals via
YDIF.

•High efficiency

The newly-developed output circuits allows high efficiency.

You can easily configure a complete sound system featuring the
XMV by connecting it to MTX series matrix processors or to
MTX Editor system configuration software. The owner’s man­ual for the MTX and for MTX Editor, and MTX Editor itself
(subsequently referred to as “the editor”) can be downloaded
from the download page of the following website.

http://www.yamahaproaudio.com/

• List of related manuals

MTX3 Owner’s
Manual

MTX Editor User’s
Manual

MTX Setup Manual

This explains how to use the MTX3
matrix processor.

This explains how to use MTX Editor.

This explains how to use and set up
the MTX3 matrix processor that is
used along with the XMV power amp.

NOTE

In order to view the downloaded manuals, Adobe Reader must
be installed in your computer. If you don’t have Adobe Reader,
please access the Adobe Corporation’s website at the following
URL, and download Adobe Reader (free of charge).

http://www.adobe.com/

Firmware Updates

The firmware version of the XMV itself can be checked from
Editor. You can update the firmware via Editor.
You can download the latest firmware from the “Downloads”
page on the following website.

http://www.yamahaproaudio.com/

Precautions for Rack Mounting

This unit is rated for operation at ambient temperatures ranging from 0 to 40 degrees Celsius. When mounting the unit with
other XMV unit(s) or other device(s) in an EIA standard equipment rack, internal temperatures can exceed the specified upper
limit, resulting in impaired performance or failure. When rack mounting the unit, always observe the following requirements to
avoid heat buildup:

• When mounting the unit in a rack with devices such as power amplifiers that generate a significant amount of heat, leave
more than 1U of space between the XMV 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 can’t 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.

XMV4280/XMV4140 Owner’s Manual

7

Controls and Functions

q wer!6 !6 !0

i t u !5o

!1 !2 !3

!4

y

Front Panel

q Power Switch

Turns power to the unit ON or OFF. Setting the switch to the
upward position turns the power on; the [POWER] indicator
will light green. Setting the switch to the downward position
turns the power off. If the switch is in the upward position
and the [POWER] indicator is blinking, the unit is in standby
mode.

CAUTION

• To ensure that high-volume noise is not output from
the speakers, power-on the equipment starting with
the audio sources, then the mixer and processors
(such as the MTX), and finally the amplifiers. Reverse
this order when turning the system off.

• Rapidly turning the power switch ON and OFF in suc­cession can cause the unit to malfunction. After turn­ing the power switch OFF, wait for about 5 seconds
before turning it ON again.

• If you modified parameter settings, do not turn the
power switch OFF for at least one second. Otherwise,
the changes to the settings may be lost.

w [PROTECTION] indicators A/B/C/D

When the protection system is active, the indicator will light
orange. If the audio output is muted, turn off the power and
wait for the XMV to cool before turning the power on again.
The protection circuit will operate in the following situa­tions.



If the amplifier overheats and the output lim­iter operates

The speaker output will be attenuated if the heat sink of
the amplifier section exceeds 80°C (80%), and will be
muted if the heat sink exceeds 90°C (90%). The [PRO­TECTION] indicator will light at 80°C (80%) or higher.



If the power supply overheats and shuts-down

The fan will rotate at high speed if the power supply sec­tion exceeds 90°C, and the analog circuits will shut down
if it exceeds 100°C.
The [PROTECTION] indicator will light at 100°C or
higher.

 When overcurrent is detected

If for any reason the impedance falls below rated, the
speaker output is muted to prevent overcurrent; muting
will be cancelled after approximately one second. If over­current is detected after muting is cancelled, the output
will be muted again.



If DC output is detected

The power supply section will be shut down.

If excessive total current or maximum current



is detected

The output signal will be compressed.

e [LIMIT] indicators A/B/C/D

When the limiter operates, the speaker output will be limited
and the indicator will light red. Lower the attenuator value so
that the limiter does not operate. The limiter will operate in
the following situations.

• When an instantaneous input overload is detected

• When an input overload has been occurring for a specific
duration

• When the heat sink of the amplifier section exceeds the
allowable temperature

r [SIGNAL] indicators A/B/C/D

The indicator will light when the input from the analog input
connector / [YDIF] connector or the output from the
[SPEAKERS] connector rises above a certain level.
If the [SIGNAL] indicator is set to show the input from the
analog input controller / [YDIF] connector, it will light when
the signal level is greater than -40 dBFS.
If it is set to show the output from the [SPEAKERS] connec­tor, the indicator will light when the indicator on the
XMV4280 will light when the signal level exceeds 1 Vrms
in 280W/8Ω mode. Refer to “[SIGNAL] Indicator Lit Level”
in the Specifications for the indicator illumination conditions
in each mode.
For details on switching the indicator between input and out­put, refer to “List of Front Panel Operations” (page 20).

XMV4280/XMV4140 Owner’s Manual

8

Controls and Functions

t [SELECT] buttons/indicators A/B/C/D

Use these buttons to select the output channel that you want
to control. The indicator of the selected channel will light.
By using these in conjunction with the [FUNCTION] button,
you can change the parameter that is controlled by the
encoder. Refer to “List of Front Panel Operations” (page 20).
When the [PANEL LOCK] indicator is lit, front panel opera­tions are locked, and output channel operations are not possi­ble. Defeat the lock if you want to perform these operations.

y Display

This is a 3-digit 7-segment display that shows information
such as the attenuator value of the selected channel.

u Encoder

This encoder is used to edit parameters. For details on the
available parameters, refer to “List of Front Panel Opera­tions” (page 20).
When the [PANEL LOCK] indicator is lit, front panel opera­tions are locked, and settings cannot be edited. Defeat the
lock if you want to perform these operations.

i [MUTE] indicators A/B/C/D

When you mute an output channel by operating the unit
itself or by operations via the [REMOTE] connector or the
editor, the indicator of the corresponding channel will light
yellow. When the power is turned on, the output signal will
also be muted and the indicator will blink yellow until audio
starts to be output.

NOTE

Even if muting is off, this indicator will blink when the protec­tion circuit has operated to mute the output.

!3 [YDIF] indicator

This will light green when the [YDIF] connector is con­nected normally and a valid word clock is being input.

!4 [PANEL LOCK] indicator

Indicator Status

Lit Front panel operations are locked.

Unlit Front panel operations are not locked.

Lock is temporarily defeated. When the

Blinking

XMV is restarted, it will be in a locked
state, and the indicator will light.

NOTE

Lock will be temporarily defeated if you press the [FUNC­TION] button and the [SELECT] A button.

!5 [FUNCTION] button

Use this to check or change the operating mode of the
XMV’s front panel. For details on how to perform front
panel operations, refer to “List of Front Panel Operations”
(page 20).

!6 Cooling vent

Located behind the vent is a variable speed cooling fan that
draws air in from the front and exhausts it through the rear.
The fan speed will automatically vary according to the tem­perature.
Please be sure that you do not block the air intakes or
exhaust vents. You should also clean the air intakes and
exhaust vents regularly. If the air intakes are clogged with
dust or debris, the amplifier will overheat, which may result
in the amplifier shutting down.

o [MUTE] button

By holding down the [MUTE] button and pressing the
[SELECT] button, you can switch muting on/off for the
channel selected by the [SELECT] button. When muting
turns on, the [MUTE] indicator will light.
When the [PANEL LOCK] indicator is lit, front panel opera­tions are locked, and channel mute operations are not possi­ble. Defeat the lock if you want to perform these operations.

!0 [POWER] indicator

This will light when the power supply is turned on by the
power switch (q).
It will blink when the unit is switched to standby mode via
the [REMOTE] connector or the editor.

!1 [ALERT] indicator

This will blink or light when an abnormality occurs in the
unit.
If this is blinking, note the indication in the display and refer
to “Alert Numbers and Content” (page 24).
If it is lit, stop operating the unit. After a time, the indicator
will change to blinking, and an alert number will appear in
the display.

!2 [NETWORK] indicator

This will light green if the XMV is in a linked state with an
external device via the NETWORK connector. It will blink
while data is being communicated.

XMV4280/XMV4140 Owner’s Manual

9

Controls and Functions

1 2 3 4 5 6 7 8

ON

ON

@5@4@2!7 @6

@1 @3

!8 !9

@0

12345678

Rear Panel

!7 NETWORK connector

This is a 100BASE-TX Ethernet connector that allows the
unit to be connected to a computer via an Ethernet cable.

NOTE

• Use a CAT5e or better STP (Shielded Twisted Pair) cable
for the NETWORK connection to prevent electromagnetic
interference.

• When using MTX Editor to control the XMV, you must con­nect the MTX.

!8 [YDIF] connectors

These are RJ-45 connectors that allow the unit to be con­nected via an Ethernet cable to another YDIF-equipped
device so that audio signals and word clock signals can be
transmitted and received. Use these to link other devices
equipped with a [YDIF] connector. For details on settings for
receiving audio signals via the [YDIF] connector, refer to
“List of Front Panel Operations” (page 20).
Cables used for this connection should be 30 meters or less
between devices.
For information on connections that use [YDIF] connectors,
refer to the “MTX Setup Manual.”

NOTE

To prevent electromagnetic interference, make connections
to the [YDIF] connector using a CAT5e or better STP
(Shielded Twisted Pair) cable in which all pins are con­nected with a straight connection.

!9 [UNIT ID] rotary switch

If multiple devices such as XMVs or MTXs are connected
on the same network, this rotary switch enables you to spec­ify the UNIT ID that identifies each XMV unit individually.

NOTE

• Do not use “00” as the UNIT ID.

• After you set the [UNIT ID] rotary switch, turn the power to
the unit off and then on.

@0 Device setup DIP switch

This DIP switch is used to make settings for the XMV. Refer
to the following for details on the settings.

NOTE

To change the switch settings, turn off the power to the unit.
If you change the settings while the power is on, the change
will not be effective until you turn the unit off and then on.

 Switch 1, 2, 3 (UNIT ID)

Use these DIP switches to specify the upper digit, and use
the [UNIT ID] rotary switch to specify the lower digit to
set a maximum of 127 combinations of UNIT ID in the
range of 01 through 7F (127).

DIP Switches

Setting Description

The UNIT ID’s

upper digit is

set to 0.

The UNIT ID’s

upper digit is

set to 1.

The UNIT ID’s

upper digit is

set to 2.

The UNIT ID’s

upper digit is

set to 3.

The UNIT ID’s

upper digit is

set to 4.

The UNIT ID’s

upper digit is

set to 5.

The UNIT ID’s

upper digit is

set to 6.

The UNIT ID’s

upper digit is

set to 7.

The setting range of the
[UNIT ID] rotary switch is
from 01 through 0F.

The setting range of the
[UNIT ID] rotary switch is
from 10 through 1F.

The setting range of the
[UNIT ID] rotary switch is
from 20 through 2F.

The setting range of the
[UNIT ID] rotary switch is
from 30 through 3F.

The setting range of the
[UNIT ID] rotary switch is
from 40 through 4F.

The setting range of the
[UNIT ID] rotary switch is
from 50 through 5F.

The setting range of the
[UNIT ID] rotary switch is
from 60 through 6F.

The setting range of the
[UNIT ID] rotary switch is
from 70 through 7F.

XMV4280/XMV4140 Owner’s Manual

10

Controls and Functions

 Switch 4 (LED DIMMER)

This specifies the brightness of the front panel indicators
and display.

DIP Switches

Setting Description

OFF Normal brightness.

Reduced brightness. Use

ON

this setting if the indicators
and the display are too
bright.

NOTE

The brightness of the [POWER] indicator will not be
reduced.

Switch 5 (PANEL LOCK)



This specifies the front panel lock setting (locks all panel
operations including the [MUTE] button and attenuation
adjustments). By selecting the LOCK setting after you’ve
completed all settings, you can prevent the volume or
mute settings from being inadvertently changed.
Even if the LOCK setting is selected, you can temporarily
unlock the panel by pressing the [FUNCTION] button
and the [SELECT] A button. The panel will be re-locked
when one minute has passed without any operation being
performed, or when you once again press the [FUNC­TION] button and the [SELECT] A button, or when you
turn off the power.

DIP Switches



Switch 6 (IP SETTING)

Setting Description

UNLOCK

LOCK

The front panel will not be
locked.

Front panel operations
other than the power will be
locked.

This selects whether the UNIT ID value will be used as
the IP address for the unit to communicate with a com­puter, or whether the IP address will be assigned by the
editor or the DHCP server.

DIP Switches



Switches 7 and 8 (START UP MODE)

Setting Description

The IP address will be
specified using the UNIT ID

UNIT ID

PC

value.
The IP address will be

192.168.0.xxx (xxx is the
UNIT ID value).

The IP address will be
specified by the editor or
the DHCP server.

These specify the startup mode of the XMV.

DIP Switches

Setting Description

RESUME

INITIALIZE

The unit will start up nor­mally.

The internal memory will be
initialized. For details on the
memory that will be initial­ized, refer to “Initializing the
Internal Memory” (page 22).

@1 Analog input connectors

These are Euroblock 3-pin analog audio input connectors.
For details on settings for receiving audio signals via the
analog input connectors, refer to “List of Front Panel Opera­tions” (page 20).
For details on how to attach Euroblock connectors, refer to
the “Setup” section entitled “Connecting the analog inputs
(Euroblock)” (page 13).

@2 [SPEAKERS] DIP switch

This DIP switch makes settings for the XMV’s amplifier in
groups of two channels.
Switches 1 through 4 specify the output setting for channels
C/D, and switches 5 through 8 specify the output setting for
channels A/B.

Use these switches to make the following settings.

Switches 1–4

Description

280W{140W}, 8Ω

Low-impedance

Connection

High-impedance

Connection

* If this setting is chosen, input/output will be disabled for

channels B and D.

560W{280W}*, 8Ω

280W{140W}, 4Ω
560W{280W}*, 4Ω
70V, 250W{125W}

100V, 250W{125W}

(channels C/D)

Switches 5–8

(channels A/B)

 Low impedance connection / high impedance

connection (switches 1 and 5)

These select either a low impedance connection or a high
impedance connection. Set them as appropriate for the
connected speakers and the way in which the speakers are
connected. For details on connections, refer to “High­impedance and Low-impedance Connections” (page 25).



Impedance (switches 3 and 7)

When using a low impedance connection, set these as
appropriate for the impedance of the speakers that are
connected. Check the specifications of the speakers.
For example if two 8Ω speakers are connected in parallel,
the total impedance will be 4Ω.



Double Power mode (switches 4 and 8)

When a low impedance connection is used, these
switches specify the output of the amplifier. If the 280W
{140W} setting is selected, input/output is enabled for
both channels. If the 560W {280W} setting is selected,
the output from the amplifier will be doubled, but input/
output will be disabled for channels B and D.



70V/100V (switches 2 and 6)

When a high impedance connection is used, these
switches specify the maximum output voltage (Vrms) of
the amplifier.

XMV4280/XMV4140 Owner’s Manual

11

Controls and Functions

@3 [SPEAKERS] output connectors

These are barrier strip type speaker output connectors. For
details on how to make connections to a barrier strip, refer to
the “Setup” section entitled “Connecting the speaker output
connectors” (page 15).

@4 [REMOTE] connector

This is a Euroblock 3-pin connector that allows muting/
unmuting of all channels and power-on/standby to be con­trolled remotely. For details, refer to “Using and connecting
the [REMOTE] connector and [FAULT OUTPUT] connec­tor” (page 18).

@5 [FAULT OUTPUT] connector

This is a Euroblock 3-pin connector that allows an external
device to be controlled when a fatal malfunction occurs in
this unit. NC and C will be shorted when the amplifier is
operating normally; NO and C will be shorted when a prob­lem occurs (page 18).
If a problem occurs, the [PROTECTION] indicator will
light.

@6 [AC IN] socket

Connect the supplied AC power cord here. First connect the
AC power cord to the socket on the rear panel of this unit,
then plug it into an appropriate AC power outlet.

CAUTION

Before connecting or disconnecting the power cord,
make sure that the power to the unit is turned OFF.

XMV4280/XMV4140 Owner’s Manual

12