Yamaha NS225F - NS 255F Left Manuel utilisateur

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E-1

NS-225F

SPEAKER SYSTEM

Thank you for choosing a Yamaha speaker system.

Caution

■ Read the following before using these speakers:

• To assure the finest performance, please read

this manual carefully. Keep it in a safe place for

future reference.

• Install the speakers in a cool, dry, clean place

away from windows, heat sources, sources of

excessive vibration, dust, moisture and cold.

Avoid sources of humming (transformers,

motors). To prevent fire or electric shock, do

not expose the speakers to dripping or

splashing.

• To prevent the enclosure from warping or

discoloring, do not place the speakers where

they will be exposed to direct sunlight or

excessive humidity.

• Do not place the following objects on top of the

speakers:

1. Glass, china, etc.

If glass etc. falls by vibrations and breaks,

it may cause personal injury.

2. A burning candle etc.

If the candle falls by vibrations, it may

cause fire and personal injury.

3. A vessel with water in it

If the vessel falls by vibrations and water

spills, it may cause damage to the unit, and/

or you may get an electric shock.

• Do not place the speakers where foreign

objects such as water drips might fall. It might

cause a fire, damage to this unit, and/or

personal injury.

• Do not place the speakers where they are liable

to be knocked over or struck by falling objects.

Stable placement will also ensure better sound

performance.

• Secure placement or installation is the owner’s

responsibility. Yamaha shall not be liable for

any accident caused by improper placement or

installation of speakers.

• Any time you note distortion, reduce the

volume of your amplifier immediately. Make

sure the input power does not exceed the

specified maximum input power, otherwise the

speakers will be damaged.

• Do not attempt to clean the speakers with

chemical solvents as this might damage the

finish. Use a clean, dry cloth.

• Do not attempt to modify or fix the speakers.

Contact qualified Yamaha service personnel

when any service is needed. The cabinet

should never be opened for any reasons.

Note:

This speaker is magnetically shielded, but placing

them too close to a TV may impair the TV picture. If

this happens, move the speaker away from the TV.

Owner’s Manual

URG

E-2

Precautions When

Positioning the Speakers

The speaker is constructed with the majority of

the weight located in its upper portion, and is thus

susceptible to falling over if proper care is not

taken to insure its stability. If the speaker falls

over, it may damage the speaker or be the cause of

injury (or even death) to persons and/or damage to

personal property.

■ For safe and proper use of the

speaker:

• Position the speaker in a location that is solid,

level, smooth, and low (with respect to the

floor).

• Do not push or apply pressure to the side of the

speaker when moving, or lean objects against

the side of the speaker.

• Do not sit on or set objects on top of the

speaker.

Vibrations or jolts associated with earthquakes

and other phenomena or activities may cause the

speaker to fall over. For safety reasons, using

commercially available products that increase

stability in the speaker is recommended (metal

fittings or chains, etc.).

Placing the Speakers

Place the speakers on a sturdy, vibration-free

surface.

■ Using as Normal Stereo Speakers

To get the best stereo performance, angle the

speakers inward so as to create a triangle, with the

listener at the apex.

■ Using as Front Speakers in a

Surround Sound System

Position the speakers both side of your TV. The

positioning of these speakers is important because

they provide a solid anchor for the sound image.

They should be positioned facing the listener at

about ear level, and equidistant from the TV.

Subwoofer

Surround L

Center

Surround R

NS-225F

E-3

English

Connecting Your

Speakers

Always turn off your amplifier or receiver

before making any connections.

■ Preparing Your Speaker Cables

Carefully remove 10 mm (3/8 ”) of insulation

from both ends of your speaker cables and twist

the bare wires tightly, as shown.

■ Hookup

■ Using a Banana Plug

1.Remove the speaker terminal cover by

gently pulling it toward you.

2.Tighten the terminal knob.

3.Simply insert the banana plug into the

terminal.

Good No Good

10 mm

(3/8 ”)

SPEAKERS

+– –

–

Loosen

Tighten

Amplifier or

receiver

Notes:

• Make sure that the bare wires are not touching each

other as this could damage the speaker and

amplifier.

• Connect one speaker to the left terminals of your

amplifier, and another speaker to the right

terminals, making sure not to reverse the polarity

(+, –). If one speaker is connected with reversed

polarity, the sound will be unnatural and lack bass.

Banana Plug

Removing the front cover

The front cover is attached to protect the speaker

unit, but you can remove it if necessary.

The front cover is fixed by magnets. Hold the

speaker with one hand, and pull the front cover

gently with the other to remove it.

Specifications

Type.................2-way bass-reflex speaker system

magnetic shielding type

Drivers............................ 3 cm (1”) dome tweeter

8 cm (3.1”) cone woofer x2

Impedance ...................................................... 6 Ω

Frequency response....................... 60 Hz–50 kHz

Nominal Input power ...................................40 W

Maximum input power...............................120 W

Sensitivity................................... 86 dB/2.83 V/m

Crossover frequency....................................3 kHz

Dimensions (with the stand)

(W ✕ H ✕ D)

........236 (9.3”) ✕1050 (41.3”) ✕236 (9.3”) mm

Weight ......................................7.7 kg (16.98 lbs)

* Specifications are subject to change without

notice due to product improvements.

Notes:

• When removing the cover, be careful that you don’t

touch the drive units, and don’t exert excessive

force with any tools.

• There are magnets on the reverse side of the front

cover. Do not place the front cover close to objects

that might be affected by magnets, such as TVs,

clocks, magnetic cards, diskettes etc. after

removing it.

YAMAHA ELECTRONICS CORPORATION, USA

6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.

YAMAHA CANADA MUSIC LTD.

135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA

YAMAHA ELECTRONIK EUROPA G.m.b.H.

SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY

YAMAHA ELECTRONIQUE FRANCE S.A.

RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE

YAMAHA ELECTRONICS (UK) LTD.

YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD18 7GQ, ENGLAND

YAMAHA SCANDINAVIA A.B.

J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN

YAMAHA MUSIC AUSTRALIA PTY, LTD.

17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA

Printed in Indonesia WD66630-1

This product mainly uses lead-free solder.

Cet appareil utilise principalement de la soudure sans plomb.

Dieses Produkt verwendet hauptsächlich bleifreies Lot.

Este producto utiliza principalmente soldadura sin plomo.

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