Yamaha NS-U50 Owner's manual

Yamaha NS-U50 Owner's manual
NS-U50
PRECAUTIONS
CONNECTION TO YOUR AMPLIFIER
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 speaker on the same shelf or rack as the
turntable can result in feedback.
• This speaker system is designed for home use only. Never
use this speaker system inside a car.
• 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.
ATTACHING STAND
Attach the included stands to the
speakers using the two included
screws. Place the speakers next
to a personal computer on a
desktop to achieve the optimum
listening position. Be sure to
attach the stands to the speakers
correctly as shown in the figure.
If you attach them in the opposite
direction or otherwise incorrectly,
the speakers may fall and be
* Non skid
damaged or cause injury.
BEFORE MAKING CONNECTIONS, MAKE SURE THAT
THE AMPLIFIER IS SWITCHED OFF.
■ CONNECTIONS
• Connect the push-type input terminals at the rear of the
speakers to the speaker output terminals of your amplifier
with the provided speaker cord.
• One side of the speaker cord is marked by a red line.
Connect the (+) terminals on both the amplifier and the
speakers using this red-marked side. Connect the (–)
terminals on both components using the black-side of the
cord.
• 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.
Procedures:
1 Press the tab on the terminal down, as shown in the
figure.
2 Insert the bare speaker wire end properly into the terminal
hole. [Remove approx. 5 mm (1/4") insulation from the
speaker cord.]
3 Remove your finger from the tab to allow it to lock snugly
on the cord’s wire end.
4 Test the security of the connection by tugging lightly on the
cord at the terminal.
Speaker (R)
Speaker (L)
Red line
+
–
Black line
*
ANALOG
PC IN
AUX 1
IN
pad
■ Non skid pad
G
Natural Sound 2-way Acoustic
Suspension Speaker System
IN
*
*
AUX 2
OUT
R
L
SUB
WOOFER
OUT
SPEAKERS
ANTENNA
R
DIGITAL
AM
L
USB
To prevent the speakers from sliding around, attach the
supplied pads as shown in the illustration.
GND
COAX IN
FM
75 Ω
UNBAL
PC
OPT IN
SPEAKERS
R
L
AUX 1
OPT IN
+
OPT OUT
–
You can also use the screw holes on the rear of the speaker
for installing the speakers.
–
6Ω MIN./SPEAKER
6Ω MIN./SPEAKER
(RP-U100)
60 mm
+
Note:
Do not let the bare
speaker wires touch each
other as this could
damage the speaker and/
or the amplifier.
A screw with a diameter of 4 mm and a
pitch of 0.7 mm can be used.
(Depth of hole: 8 mm)
SPECIFICATIONS
Type
Driver
Nominal input power
Maximum input power
Frequency response
Sensitivity
Crossover frequency
Impedance
: 2-way acoustic suspension
magnetic shielding
: Woofer ..... 9 cm (3-1/2") cone
Tweeter .... 2.5 cm (15/16")
balanced dome
: 40 W
: 100 W
: 75 Hz – 30 kHz
: 88 dB
: 5 kHz
: 6Ω
Dimensions (W × H × D) : 110 (4.3") × 293 (11.5") × 192 (7.6") mm
(stand included)
Weight
: 2.0 kg (4.4 lbs) (stand included)
Accessories
: Stand × 2
Screws for stand × 4
Non skid pad × 8
Speaker cord × 2
Printed in Malasia IP
V425250
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