Yamaha NX-50 Owners Manual

NX-50

Powered Speaker
Enceinte Amplifiée

ULV

OWNER’S MANUAL

MODE D’EMPLOI

MANUAL DE INSTRUCCIONES

Features English

Plays a variety of contents with high-quality sound.

You can enjoy a variety of contents with high-quality sound by connecting to
external devices such as computers or TVs.

Loudness control

The Loudness control function of the speakers allows you to enjoy rich bass
tone sounds even at low volumes.

Auto-standby

When no sound is input for a period of time, the speakers go to standby
mode automatically.
Since you do not have to turn on/off the power every time, you can save
energy.

Aesthetically neutral design

Solid and stylish metal grill design in a compact size that will fit into a variety
of home environments.

Características Español

Reproduce una amplia gama de contenido con sonido de
alta calidad.

Puede disfrutar de una amplia gama de contenido con sonido de alta calidad si
conecta los altavoces a dispositivos externos como ordenadores o televisores.

Control de sonoridad

La función de control de sonoridad de los altavoces permite disfrutar de
graves con matices incluso si el sonido está a volumen bajo.

Reposo automático

Si no se recibe señal de sonido durante un periodo determinado, los altavoces
entran automáticamente en modo de reposo.
Como no es necesario encender y apagar los altavoces cada vez, se ahorra energía.

Diseño estético neutro

Su diseño elegante y robusto de rejilla metálica y su tamaño compacto los
convierten en la opción perfecta para todo tipo de casas.

Fonctionnalitéss Français

Lecture de divers types de contenu avec une grande qualité sonore.

Vous pouvez lire divers types de contenu avec une grande qualité sonore en raccordant
vos enceintes à des périphériques externes, tels qu’ordinateurs ou téléviseurs.

Commande de la correction physiologique

La commande de la correction physiologique des enceintes permet
d’amplifier la puissance des graves, même à faibles niveaux d’écoute.

Mise en veille automatique

Lorsqu’aucun signal n’est détecté pendant une période définie, les enceintes
passent automatiquement en mode veille.
Il n’est pas nécessaire d’allumer ou d’éteindre systématiquement les
enceintes ; vous économisez donc de l’énergie.

Design sobre

À la fois solides, élégantes et compactes, ces enceintes sauront s’adapter à
tous les styles d’intérieur.

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Feartures

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK DO

NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC

COVER (OR BACK). NO USER-SERVICEABLE PARTS

INSIDE. REFER SERVICING TO QUALIFIED SERVICE

SHOCK, DO NOT REMOVE

PERSONNEL.

• Explanation of Graphical Symbols

The lightning flash with arrowhead
symbol, within an equilateral
triangle, is intended to alert you 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.

IMPORTANT

Please record the serial number of this unit in the space below.
MODEL:
Serial No.:
The serial number is located on the rear of the unit. Retain this Owner’s Manual in
a safe place for future reference.

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.

The exclamation point within
an equilateral triangle is
intended to alert you to the
presence of important
operating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.

8 Do not install near any heat sources such as radiators, heat registers, stoves, or

other apparatus (including amplifiers) that produce heat.

9 Do not defeat the safety purpose of the polarized or groundingtype 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 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 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. 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.

We Want You Listening For A Lifetime

Yamaha and the Electronic Industries Association’s Consumer
Electronics Group want you to get the most out of your equipment by
playing it at a safe level. One that lets the sound come through loud and
clear without annoying blaring or distortion - and, most importantly,
without affecting your sensitive hearing. Since hearing damage from
loud sounds is often undetectable until it is too late, Yamaha and the
Electronic Industries Association’s Consumer Electronics Group
recommend you to avoid prolonged exposure from excessive volume
levels.

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FCC INFORMATION (for US customers)

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.

IMPORTANT : When connecting

2

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.

FCC CAUTION

Change or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.

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 A/V 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.

COMPLIANCE INFORMATION STATEMENT

(DECLARATION OF CONFORMITY PROCEDURE)

Responsible
Party

Address

Telephone [phone]

Type of
Equipment

Model Name NX-50

• This device complies with Part 15 of the FCC Rules and RSSGen of IC 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 of this device.

See the “Troubleshooting” section at the end of this manual if interference to radio
reception is suspected.

Yamaha Corporation of America
A/V Division

6600 Orangethorpe Avenue, Buena
Park, CA 90620, USA

Powered Speaker

Yamaha Canada Music Ltd.

135 Milner Avenue, Toronto,
Ontario, MIS 3R1, Canada

NOTICE

This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in aresidential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
This equipment compiles with FCC/IC radiation exposure limits set forth for uncontrolled
equipment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C
to OET65 and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment has
very low levels of RF energy that it deemed to comply without maximum permissive
exposure evaluation (MPE). But it is desirable that it should be installed and operated with at
least 20 cm and more between the radiator and person’s body (excluding extremities: hands,
wrists, feet and ankles).
This transmitter must not be co-located or operated in conjunction with any other antenna or
transmitter.

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Caution: Read this before operating your unit.

To assure the finest performance, please read this manual carefully. Keep it in a safe
place for future reference.
1 Install this unit in a well ventilated, cool, dry, clean place – away from direct

sunlight, heat sources, vibration, dust, moisture, and/or cold. For proper ventilation,
allow the following minimum clearances.
Top: 5 cm
Rear: 5 cm
Sides: 5 cm

2 Locate this unit away from other electrical appliances, motors, or transformers to

avoid humming sounds.

3 Do not expose this unit to sudden temperature changes from cold to hot, and do

not locate this unit in an environment with high humidity (i.e. a room with a
humidifier) to prevent condensation inside this unit, which may cause an electrical
shock, fire, damage to this unit, and/or personal injury.

4 Avoid installing this unit where foreign objects may fall onto this unit and/or this

unit may be exposed to liquid dripping or splashing. On the top of this unit, do
NOT place:
– Other components, as they may cause damage and/or discoloration on the

surface of this unit.

– Burning objects (i.e. candles), as they may cause fire, damage to this unit, and/

or personal injury.

– Containers with liquid in them, as they may fall and liquid may cause electrical

shock to the user and/or damage to this unit.

5 Do not cover this unit with a newspaper, tablecloth, curtain, etc. in order not to

obstruct heat radiation. If the temperature inside this unit rises, it may cause fire,
damage to this unit, and/or personal injury.

6 Do not operate this unit upside-down. They may overheat, possibly causing

damage.
7 Do not use force on switches, knobs, and/or cords.
8 When disconnecting the power cable from the wall outlet, grasp the AC plug; do

not pull the cord.
9 Do not clean this unit with chemical solvents; this might damage the finish. Use a

clean, dry cloth.
10 Only the voltage specified on this unit must be used. Using this unit with a higher

voltage than specified is dangerous and may cause fire, damage to this unit, and/or

personal injury. Yamaha will not be held responsible for any damage resulting
from use of this unit with a voltage other than that specified.

11 Do not attempt to modify or fix this unit. Contact qualified Yamaha service

personnel when any service is needed. The cabinet should never be opened for any
reason.

12 When not planning to use this unit for long periods of time (i.e. when going on

vacation), disconnect the power cable from the AC wall outlet.

13 Be sure to read the “TROUBLESHOOTING” section regarding common

operating errors before concluding that the unit is faulty.
14 Before moving this unit, disconnect the power cable from the wall outlet.
15 Be sure to use the AC adaptor supplied with this unit. Using an AC adaptor other

than the one provided may cause fire or damage to this unit.
16 Install this unit near the wall outlet and where the power cable can be reached

easily.
17 For added protection for this product during a lightning storm, or when it is left

unattended and unused for long periods of time, unplug it from the wall outlet.

This will prevent damage to the product due to lightning and power-line surges.
18 Secure placement or installation is the owner’s responsibility. Yamaha is not liable

for accidents caused by improper placement or installation of speakers.

WARNING

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

There is a chance that placing this unit too close to a CRT-based (Braun tube) TV set
might impair picture color. Should this happen, move this unit away from the TV set.

This unit is not disconnected from the AC power source as long as it is connected
to the wall outlet, even if this unit itself is turned off. In this state, this unit is
designed to consume a very small quantity of power.

FOR CANADIAN CUSTOMERS

This Class B digital apparatus complies with Canadian ICES-003.

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Precautions

Please read the following operating precautions before use:

• Use the AC adaptor designed specifically for this unit only. Yamaha is
not responsible for damage caused by using other power adaptors.

• Do not apply pressure or force the control knobs of this unit, or place
heavy items on the cabinet.

• Avoid outputting from test disks, electrical musical instruments, or
from extremely loud or distorted input. It may cause a malfunction of
the speakers.

• This unit may cause picture distortion when placed close to a computer
monitor or television. In this case, move the unit away from them.

• Keep this unit away from magnetic media such as floppy disks and
tapes. Otherwise the data on the media may become corrupted.

• Remove the AC adaptor from the wall outlet immediately if any
problem is found.

Contents

Controls and functions..........................................................................1

Connections ...........................................................................................3

Troubleshooting....................................................................................4

Specifications.........................................................................................4

Supplied accessories

Before assembly and connecting, make sure you have received all of the
following items.

• AC adaptor × 1

• 3.5 mm stereo mini plug cable (2.0 m) × 1

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Controls and functions

Front panel

R speaker (Right)

(On the right side when
facing the front of the
speakers.)

a

b

c

L speaker (Left)

(On the left side when
facing the front of the
speakers.)

1 Headphones connector (3.5 mm stereo mini jack)

Use for a headphones connection.

When a headphones connection is made, no sound is output from the speakers.

Notes

To protect your hearing, make sure that the volume is low before headphones are
used.

• Do not use headphones with a loud volume for a long time. Otherwise, your

hearing may be damaged.

• Make sure that the volume of the audio devices is at minimum before

headphones are connected. A sudden loud sound may damage your hearing.

2 VOL (volume) control

Controls the volume of both speakers and headphones.
The volume becomes louder as the VOL control is rotated to the right,
and quieter as it is rotated to the left.

Loudness control

The Loudness control function of the speakers allows you to enjoy rich
bass tone sounds even at low volumes.
It automatically corrects the sound volume level from the speakers to
allow you to hear the best possible sounds.

When you use the speakers connected to an external device, such as your
TV, computer, portable player, etc., adjust the output sound level as
follows .

a After you connect the speakers to an external device, turn on

the power of the speakers and then rotate the VOL (volume)
control to the 2 o’clock position (right illustration).

b Adjust the volume of the external device to its loudest output

level, without annoying blaring or distortion.
For details about external devices, see their instruction
manuals.

c

Rotate the

VOL

control of the speakers to adjust the volume to the desired level.

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3 p (power)/indicator (LED)

R

l

When you press p (power), the speakers will turn on and the indicator
will light up. Also, the auto-standby mode will be available.

Note

Even when the speakers are turned off or are in standby mode, they consume a
small amount of electricity.

Viewing the p (power)
button from the side…

OFF ON

Status indicator (LED)

No light {Light

z

Sound signalp (power) offp (power) on

Present

Not present

z

z

{

After about
30 minutes

Auto-standby

→

Perform the following procedure to exit standby mode.

a Turn up the output level of the connected device.
b Rotate the VOL (volume) control of this unit and adjust to the desired sound

level.

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ear pane

{

z

d
e

This unit has a function that automatically activates standby mode
(power save mode) when this unit is turned on and no audio signal is
input or when the connected device is playing at a low volume for a
certain amount of time (about 30 minutes).
In standby mode, the indicator light goes off.

When a connected device is played while the speakers are in standby
mode, the speakers activate automatically and sound is output.
When p (power) is pressed again, the speakers turn off.

f

R speaker (right)

L speaker (left)

4 AUDIO INPUT 1/2 (input connectors)

Connects with external devices, such as portable players, using the
supplied 3.5 mm stereo mini plug cable.

5 TO LEFT SPEAKER

Notes

• The time before entering standby mode is only a guide. It varies depending on

the usage environment.

• If the sound from a connected device is too low, the speakers may not activate. In

this case, turn up the volume of the connected device.

• If you are using devices, such as mobile phones, which emit electromagnetic

waves near the speakers, the speakers may activate by themselves, or not enter
standby mode.

Connects with a cable from the L speaker (left) through this connector.

6 12V (DC 12V)

Make sure you use the supplied AC adaptor.

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