Yamaha NS-45 Bedienungsanleitung

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 your amplifier with

the provided speaker cords.

●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 this red 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:

➀Loosen the terminal knob.

➁Insert the bare wire end properly into the terminal hole.

[Remove approx. 10 mm (3/8”) insulation from the speaker

cord.]

➂Tighten the knob.

➃Test the security of the connection by pulling lightly the cord

at the terminal.

* Banana Plug connections

are also possible. First

tighten the terminal knobs,

and then insert the

Banana Plug connector

into the corresponding

terminal hole.

Note

Do not let the bare speaker wires touch each other as this

could damage the speakers or the amplifier, or both of

them.

NS-55 NS-45

Thank you for selecting this Yamaha speaker system.

PRECAUTIONS

Read these precautions carefully before using your speakers.

●Any time you notice distortion, reduce the volume of your

amplifier. 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 cabinets with chemical solvents as

this might damage the finish. Use a dry, soft cloth.

●To prevent the cabinets from warping or discoloring, do not

place the speakers where it 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.

●Do not place the speakers on the same shelf or rack as the

turntable. The vibration of the speakers might cause the

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 speakers.

CONNECTION TO YOUR AMPLIFIER

Red line

Black line

Speaker (R)

Speaker output

terminals of the

amplifier

Speaker (L)

Loosen

Black(–)

Tighten

Red (+)

Red line

HOME CINEMA MAIN SPEAKER

Amplifier

PLACING THE SPEAKERS

●Place the speakers on a sturdy vibration-free surface. If you

cannot obtain good bass quality when the speakers are placed

directly on the floor, insert a block etc. between the speakers

and the floor.

●Better stereo images will be obtained when the speakers are

slightly angled in towards the listeners.

Note

Bacause these speakers are not a magnetically shielded

type, there may be some influence on a TV picture

depending on the type of TV or the placement of the

speakers. In such a case, place the speakers apart from the

TV.

REMOVING THE FRONT COVER

The front cover is fixed to the cabinet at six points, and can be

removed if desired. To remove the cover, hold 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.

SPECIFICATIONS

<NS-55>

Type...................... 3-way 4-speaker bass-refrex speaker system

Speaker Unit..............................................20 cm cone woofer x 2

10 cm cone mid-range

3 cm dome tweeter

Nominal Impedance...........................................................6 ohms

Frequency Response.............................40 Hz – 20 kHz (–10 dB)

Nominal Input Power..............................................................70W

Maximum Input Power .........................................................250W

Sensitivity.....................................................................90 dB/W·m

Dimensions (WxHxD)....................................264 x 886 x 316 mm

......................................................(10-3/8” x 34-7/8” x 12-7/16”)

Weight.......................................................13.6 kg (29 lbs. 15 oz.)

Accessories..............................................Speaker cable (4m) x 1

<NS-45>

Type.......................2-way 3-speaker bass-reflex speaker system

Speaker Unit..............................................16 cm cone woofer x 2

3 cm dome tweeter

Nominal Impedance...........................................................6 ohms

Frequency Response.............................43 Hz – 20 kHz (–10 dB)

Nominal Input Power..............................................................60W

Maximum Input Power .........................................................220W

Sensitivity.....................................................................90 dB/W·m

Dimensions (WxHxD)....................................230 x 780 x 275 mm

................................................(9-1/16” x 30-11/16” x 10-13/16”)

Weight.......................................................10.8 kg (23 lbs. 13 oz.)

Accessories..............................................Speaker cable (4m) x 1

* Specifications subject to change without notice due to product

improvements.

* Care should be taken not to exceed the input power values

noted above.

V276650

NS-55 NS-45

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