English
E-1
Read this before using the 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 electrical shock,
do not expose the speakers to rain or water.
● 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 the speakers:
Glass, china, etc.
If glass etc. falls by vibrations and breaks, it may cause
personal injury.
A burning candle etc.
If the candle falls by vibrations, it may cause fire and
personal injury.
A vessel with water in it
If the vessel falls by vibrations and water spills, it may
cause damage to the speakers, 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
the speakers, 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.
PRECAUTIONS
Place the speakers on a sturdy, vibration-free surface, on a
well-built stand.
■ Using as 2ch stereo speakers
Better stereo images will be obtained when the speakers
are slightly angled in towards the listeners.
■ Using as main speakers in a multi channel
system
Position the speakers on both sides of the TV. The
positioning of speakers is important, because it controls the
whole sound quality of a multi channel system. Set up the
speakers on the basis of your listening position by following
the owner’s manual supplied with your amplifier.
Note
These speakers feature a magnetically shielded design,
but there is still a chance that placing them too close to
a TV set might impair picture color. Should this happen,
move the speakers away from the TV set.
PLACING THE SPEAKERS
NS-4HX
Speaker System
OWNER’S MANUAL
G R
Thank you for selecting this YAMAHA NS-4HX speaker system.
● Placing the speakers on the same shelf or rack as the
turntable can result in feedback.
● Never put a hand or a foreign object into the port located
on the rear of the speaker as this might cause personal
injury and/or damage to the speaker.
● When moving the speaker, do not hold the port as it
might cause personal injury and/or damage to the
speaker.
● Any time you note distortion, reduce the volume control
on your amplifier to a lower setting. Never allow your
amplifier to be driven into “clipping”. Otherwise the
speakers may be damaged.
●
When using an amplifier with a rated output power higher
than the nominal input power of the speakers, care should
be taken never to exceed the speakers’ maximum input.
●
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.
● 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.
Effect L
Effect R
Subwoofer
Center
NS-4HX
(Main L)
NS-4HX
(Main R)
E-2
SPEAKERS
A
B
L
R
+
+
–
–
+
–
CONNECTIONS TO YOUR AMPLIFIER
Amplifier or
Receiver
Tighten
NS-4HX (L)
This speaker system is capable of standard connections and bi-wired connections. Before making
connections, make sure that the amplifier is switched off.
■ CONNECTIONS
• Connect the screw-type input terminals at the rear of the
speakers to the speaker output terminals of the amplifier
(or receiver) with the speaker cable.
• Connect the (+) terminals on the amplifier (or receiver)
and the speakers using one side of the cable. Connect
the (–) terminals on both components using the other
side of the cable.
• Connect one speaker to the left (marked L) terminals of
your amplifier, and another speaker to the right (marked
R) terminals, making sure not to reverse the polarity
(+, –). If one speaker is connected with reversed polarity,
the sound will be unnatural and lack bass.
How to connect:
1 Loosen the knob.
2 Insert the bare wire. [Remove the insulation coating at
the extremity of each speaker cable by twisting the
coating off.]
3 Tighten the knob and secure the cable.
Test the firmness of the connection by pulling lightly on
the cable at the terminal.
Note
Do not let the bare speaker wires touch each other as
this could damage the speaker or the amplifier, or both
of them.
Loosen
<Standard connections>
Short bar
Leave the short
bars in place
when
connecting.
NS-4HX (R)
Speakers output
terminals of the
amplifier (or
receiver)
English
E-3
+ ––
SPEAKERS
L
R
SPEAKERS
A
B
L
R
++ ––
+
+
–
When using a banana plug
<General model only>
1 Remove the cover by pulling it toward you.
2 Tighten the terminal knob.
3 Simply insert the banana plug into the terminal.
Bi-Wired Connections
This speaker system is capable of bi-wired
connections. To connect the speaker to the output
terminals of the amplifier (or receiver), two pairs
of cables for each of woofer and tweeter are used
instead of standard connections. This type of
connection decreases the modulation distortion
caused by electric resistance of the cables and
driving current of the speakers. Consequently,
purer sound quality can be expected.
To utilize bi-wired connections, remove the short
bars from the terminals first, and then connect the
woofer and tweeter to the amplifier separately
using two pairs of cables.
<Bi-wired connections>
Remove the short
bars before
connecting.
Amplifier or
Receiver
Woofer
terminals
Tweeter
terminals
Banana plug
2
1
3
Amplifier or
Receiver
NS-4HX (L)NS-4HX (R) NS-4HX (L)NS-4HX (R)
Both SPEAKERS A and B
should be selected.
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SPECIFICATIONS
Type .......................................2-way 3-speaker bass reflex
speaker system
Magnetic shielding type
Driver .......................................13 cm (5”) cone woofer x 2
Wave guide horn 3 cm (1”) dome tweeter
Impedance ................................................................... 6 Ω
Frequency Response ................................55 Hz to 50 kHz
Nominal Input Power ................................................ 100 W
Maximum Input Power.............................................. 300 W
Sensitivity ...................................................91 dB/2.83 V/m
Crossover Frequency ............................................. 2.5 kHz
Dimensions (WxHxD) .........................186 x 500 x 257 mm
(7-5/16” x 19-11/16” x 10-1/8”)
Weight .............................................. 11.5 kg (25 lbs. 6 oz.)
● Specifications subject to change without notice due to
product improvements.
● Care should be taken not to exceed the input power
values noted above.
REMOVING THE FRONT COVER
The front cover is fastened to the enclosure at four points
and can be removed if desired. To remove the cover, hold
on to both sides and slowly pull straight away from the
speaker. To reattach, line up the four pegs on the speaker
with the four corresponding holes on the inside surface of
the cover and push gently.
Note
When the cover is removed, take care not to touch the
speaker units with your hands or to exert excessive
force with tools.
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 WD1 7JS, ENGLAND
YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VASTRA FRÖLUNDA, SWEDEN
YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA
V790830
Printed in Indonesia
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