Yamaha NS-90 Owners manual
English
GTR
NS-90
OWNER’S MANUAL
Thank you for selecting this YAMAHA NS-90 speaker system.
PRECAUTIONS
Read these precautions carefully before using your 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 speaker may be damaged.
●
When using an amplifier with a rated output power higher than
the nominal input power of the speaker, care should be taken
never to exceed the speaker’s maximum input.
●
Do not attempt to clean the speaker with chemical solvents as
this might damage the finish. To clean, wipe with a dry, soft cloth.
●
To prevent the enclosure from warping or discoloring, do not
place the speaker where it will be exposed to direct sunlight or
excessive humidity.
●
Do not place the speaker where it is 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.
●
Secure placement or installation is the owner’s responsibility.
YAMAHA shall not be liable for any accident caused by improper
placement or installation of the speaker.
Speaker System
■ Using as front effect or rear speakers
Install on a wall or place on a shelf and angle toward the main
listening position for a fuller surround sound in a multi channel
system. Determine the best position and angle for the speakers by
following the guidelines in the owner’s manual supplied with your
amplifier.
●
Mounting the speaker on a wall
Mount the speakers on a wall by using the bracket provided on
the back of the speaker. Fasten screws into a firm wall or wall
support as shown in the diagram, and hang the holes of the
mounting bracket on the protruding screws.
Diam. 4 - 5 mm
Min.
20 mm
2 mm
Tapping screw
(Available at a
hardware store)
Wall or wall support
40 mm
PLACING THE SPEAKERS
Place the speakers on a sturdy, vibration-free surface, on a wellbuilt 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.
Front Effect
Speakers
Center
NS-90
(Main L)
NS-90
(Main R)
Subwoofer
You can also use the screw holes on the back of the speaker to
mount the speakers on a wall.
60 mm
A screw with a diameter
of 4 mm and a pitch of
0.7 mm can be used.
(Depth of hole : 10 mm)
Notes
●
Be sure to check the wall before attempting to mount these
speakers on a wall. If necessary, please consult an
installation specialist or the shop where the speakers were
purchased.
●
Wall hanging screws are not supplied with these speakers.
When installing, please only use screws that are appropriate
for the weight of the speakers, the thickness of the wall, etc.
Rear Speakers
CONNECTIONS TO YOUR AMPLIFIER
Before making connections, make sure that the amplifier is
switched off.
Loosen
Tighten
Black (–)
Red (+)
+–
Speaker (R)
Speakers output
terminals of the
amplifier
SPEAKERS
R
–
–
+
Amplifier or
Receiver
L
Speaker (L)
A
+
B
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 inside surface of the cover with the four
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.
SPECIFICATIONS
Type .......................... 2-way 2-speaker bass reflex speaker system
(Magnetically-shielded type)
Driver..................................................................13 cm cone woofer
3 cm dome tweeter
Nominal Impedance ............................................................. 6 ohms
Frequency Response ...............................................60 Hz – 35 kHz
Nominal Input Power................................................................ 60 W
Maximum Input Power ........................................................... 200 W
Sensitivity ................................................................ 89 dB/2.83 V/m
Crossover Frequency.............................................................. 3 kHz
Dimensions (W x H x D)...................................168 x 310 x 177 mm
Weight ....................................................................................... 4 kg
■ Connections
●
Connect the screw-type input terminals at the rear of the
speakers to the speaker output terminals of your amplifier with
the speaker cables.
●
Connect the (+) terminals on both the amplifier 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.
Procedure:
Loosen the terminal knob.
➀
Remove approx. 10 mm insulation from the speaker cable and
➁
insert the bare wire end properly into the terminal hole.
Tighten the knob.
➂
Test the security of the connection by tugging lightly on the
➃
cable at the terminal.
Note
Do not let the bare speaker wires touch each other as this
could damage the speaker and/or the amplifier.
●
Specifications subject to change without notice due to product
improvements.
●
Care should be taken not to exceed the input power values
noted above.
V536740-1
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