Yamaha NS-U30 Owner's Manual page 2

Thank you for selecting Yamaha's NS-U30 Natural Sound 2-way Acoustic-suspension Speaker System.
CAUTIONS
Please read the following operating precautions
before use.
YAMAHA will not be held responsible for any
damage and/or injury caused by not following the
cautions below.
●
To assure the finest performance, please read this
manual carefully. Keep it in a safe place for future
reference.
●
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 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.
●
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.
These speakers feature a magnetically shielded
design, but there is still a chance that placing
them too close to a TV or a computer monitor
might impair picture color. Should this happen,
move the speakers away from the TV or the
computer monitor.
CONNECTION TO YOUR AMPLIFIER
Before making the 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 red and the other
side is black. Connect the (+) terminals on both
the amplifier and the speakers using the red side.
Connect the (–) terminals on both components
using the black side.
●
Connect one speaker to the left (marked L)
terminals of your amplifier, and the other 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
Press and hold the terminal's tab, as shown in the
figure.
2
Insert the bare wire end properly into the terminal
hole. [Remove approx. 10 mm (3/8") insulation
from the speaker cord.]
3
Release your finger from the tab to allow it to lock
securely on the cord's wire end.
4
Test the firmness of the connection by pulling
lightly on the cord 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.
Speaker (R) Speaker (L)
ANALOG
R L
PC IN
AUX 1
IN
AUX 2
IN
REC
SUB OUT
WOOFER
OUTPUT
SPEAKERS
R L
DIGITAL
6Ω MIN.
USB /SPEAKER
– +
COAX
IN
PC
SPEAKERS OPT
L
IN
6Ω MIN.
/SPEAKER
– +
AUX 1
OPT IN
L MAIN
MAIN OPT
OUT
R
R
MAINS
Amplifier/Receiver
Red
Black
1
E-