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.
PRECAUTIONS
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.
PRECAUTIONS WHEN POSITIONING THE SPEAKERS
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.).
Use the stands included with the speakers to increase
stability:
Be sure to use the stands regardless of where the speakers
are positioned. Attaching the stands included with the
speakers reinforces the base of the speaker not to fall over.
Please be cautioned that even though the stands are
connected, this does not guarantee that the speakers will
not fall over.
NS-8390
Speaker System
OWNER’S MANUAL
U G R
Thank you for selecting this YAMAHA NS-8390 speaker system.
● 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.
● Placing the speakers on the same shelf or rack as the
turntable can result in feedback.
● 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.
NS-8390 ENG(02.4.16)a 02.6.4, 0:13 AM1
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ATTACHING THE STANDS
When placing the speakers, be sure to use the stands to
increase stability.
Use the 8 specified holes located on the base of the speaker.
Procedure:
1
Put a screw through the hole on the stand, and screw it
into the speaker at one of the holes on the base of the
speaker.
At this time, screw it untightly so that the stand can still
be moved.
2
Put another screw through the other hole on the stand,
and screw it into the other hole on the base of the
speaker.
3
Tighten both of the screws firmly.
4
Attach a pad to the bottom of the end portion of the
stand.
5
Attach the other stands to the other corners of the base
of the speaker in the same way and confirm that all 4
stands have been firmly attached.
Note
Be carefull not to apply force to the side of the speaker,
otherwise the speaker may fall causing damage to the
speaker or personal injury.
Pad x 8
(4 per one speaker)
Screw x 16
(8 per one speaker)
Stand x 8
(4 per one speaker)
PLACING THE SPEAKERS
■ 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.
Effect L
Effect R
Subwoofer
Center
NS-8390
NS-8390
12
4
NS-8390 ENG(02.4.16)a 02.6.4, 0:13 AM2
English
E-3
SPEAKERS
A
B
L
R
+
+
–
–
CONNECTIONS TO YOUR AMPLIFIER
Speakers output
terminals of the
amplifier
Amplifier or
Receiver
Tighten
Speaker (L)
Speaker (R)
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 provided speaker cables.
• One side of the speaker cable is red and the other side is
black. Connect the (+) terminals on the amplifier (or
receiver) and speakers using the red side. Connect the
(–) terminals on both components using the black side of
the cable.
• Connect each speaker making sure not to reverse the
polarity (+, –). If the 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.
When using a banana plug
<U.S.A. and General models only>
2
3
Banana plug
1
1 Remove the cover by pulling it toward you.
2 Tighten the terminal knob.
3 Simply insert the banana plug into the terminal.
Loosen
Red (+)
Black (–)
NS-8390 ENG(02.4.16)a 02.6.4, 0:13 AM3
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SPECIFICATIONS
Type ............ 3-way 3-speaker bass-reflex speaker system
Magnetic shielding type
Driver ............................................ 20 cm (8”) cone woofer
10 cm (4”) cone mid-range
2.2 cm (7/8”) balanced dome tweeter
Impedance ................................................................... 8 Ω
Frequency Response ................................35 Hz to 27 kHz
Nominal Input Power .................................................. 70 W
Maximum Input Power .............................................. 220 W
Sensitivity ...................................................89 dB/2.83 V/m
Crossover Frequency ................................... 4 kHz, 10 kHz
Dimensions (W x H x D) .....................262 x 920 x 266 mm
(10-5/16” x 36-1/4” x 10-1/2”)
Weight ............................................ 11.7 kg (25 lbs. 14 oz.)
Accessories ......................................................... Stand x 8
Screw x 16
Pad x 8
Speaker cable (2.5 m) x 2
●
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 six 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 six pegs on the inside
surface of the cover with the six corresponding holes on the
speaker 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.
NS-8390 ENG(02.4.16)a 02.6.4, 0:13 AM4
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
V953930
Printed in Indonesia
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