Yamaha NX-430P Manualul proprietarului

NS-P430/

NS-P436

(NS-P430/NS-P436: NX-430P + NX-C430 + YST-SW015)

HOME CINEMA 5.1CH SPEAKER PACKAGE/

HOME CINEMA 6.1CH SPEAKER PACKAGE

5.1 SYSTEM D’ENCEINTES HOME CINEMA/

6.1 SYSTEM D’ENCEINTES HOME CINEMA

OWNER’S MANUAL

MODE D’EMPLOI

BEDIENUNGSANLEITUNG

BRUKSANVISNING

MANUALE DI ISTRUZIONI

MANUAL DE INSTRUCCIONES

GEBRUIKSAANWIJZING

G

NS-P430-436 PRE(03.1.16)a 03.1.24, 5:17 PM1

● Speaker cables

● Câbles d’enceintes

● Lautsprecheranschlußkabel

● Högtalarledningar

● Cavi per gli altoparlanti

● Cables de los altavoces

● Luidsprekerdraden

● Subwoofer cable

● Câble pour subwoofer

● Subwoofer-Kabel

● Subwooferkabel

● Cavo per subwoofer

● Cable del subwoofer

● Subwooferkabel

● Fasteners (for NX-C430)

● Fixations (pour NX-C430)

● Befestigung (für NX-C430)

● Fästanordning (för NX-C430)

● Fermi (per l’NX-C430)

● Sujetadores (para NX-C430)

● Bevestiging (voor NX-C430)

● Nonskid pads (for YST-SW015)

● Patins anti-dérapages (pour YST-SW015)

● Gleitschutzpads (für YST-SW015)

● Glidskyddsdynor (för YST-SW015)

● Piedini antisdrucciolevoli (per l’YST-SW015)

● Almohadillas antideslizantes (para YST-SW015)

● Antislipplaatjes (voor YST-SW015)

● Main and rear speakers

(and rear center speaker for NS-P436)

● Enceintes principales et arrière

(

et enceinte arrière centrale pour le NS-P436

)

● Haupt- und hinteres Lautsprecherpaar

(

und hinteren Centerlautsprecher für NS-P436

)

● Huvudhögtalare och bakre högtalare

(samt bakre mitthögtalare för NS-P436)

● Altoparlanti principali e posteriori

(

e altoparlante posteriore centrale del modello NS-P436

)

● Altavoces principales y traseros

(

y altavoz central trasero para NS-P436

)

● Hoofdluidsprekers en achterluidsprekers

(

en als achter-middenluidspreker voor NS-P436

)

● Center speaker

● Enceinte centrale

● Centerlautsprecher

● Mitthögtalare

● Altoparlante centrale

● Altavoz central

● Middenluidspreker

● Subwoofer

● Subwooferhögtalaren

● Subwoofer

● Altavoz ultragraves

● Subwoofer

UNPACKING Please check to make sure all listed items are included.

DEBALLAGE Veuillez vous assurer que tous les articles répertoriés sont bien présents.

AUSPACKEN Überprüfen Sie bitte, ob alle aufgelisteten Teile im Lieferumfang enthalten sind.

UPPACKNING Kontrollera att alla delar i förteckningen finns med.

DISIMBALLAGGIO Assicuratevi che tutti gli elementi elencati siano inclusi.

DESEMBALAJE Por favor asegúrese de que todos los elementos listados estén incluidos.

UITPAKKEN Controleer of alle hieronder afgebeelde voorwerpen in de doos zitten.

[4m]

[15m]

X 2

X 3

NX-430P

NX-C430

YST-SW015

X 2

<NS-P430>

X 3

<NS-P436>

X 4

<NS-P430>

X 5

<NS-P436>

SUBWOOFER SYSTEM YST-SW015

STANDBY/ON B.A.S.S. HIGH CUT

50

–

150Hz

VOLUME

0

–

10

NS-P430-436 PRE(03.1.16)a 03.1.24, 5:17 PM2

English

E-1

● 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 electric 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.

● Avoid installing the speakers where foreign objects may fall onto

them and/or where they may be exposed to liquid dripping or

splashing.

Do not place the following objects on top of the speakers:

●

Other components, as they might cause damage and/or

discoloration on the surface of the speakers.

●

Burning objects (i.e. candles), as they might cause fire,

damage to the speakers and/or personal injury.

●

Containers with liquid in them, as they might cause electric

shock to the user and/or damage to the speakers.

● 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.

● 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.

● 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 reason.

● Be sure to read the “TROUBLESHOOTING” section regarding

common operating errors before concluding that the speakers

are faulty.

For YST-SW015

● Do not operate this unit upside down. It may overheat, possibly

causing damage.

● Do not use excessive force on switches, controls or connection

wires. When moving this unit, first disconnect the power plug

and the wires connected to other equipments. Never pull the

wires themselves.

● Since this unit has a built-in power amplifier, heat will radiate

from the rear panel. Place the unit apart from the walls, allowing

enough spaces above, behind and on both sides of the unit to

prevent fire or damage. Furthermore, do not position with the

rear panel facing down on the floor or other surfaces.

Be sure to allow spaces of at least 20 cm above, behind and on

both sides of the unit.

● When using a humidifier, be sure to avoid condensation inside

this unit by allowing enough spaces around this unit or avoiding

excess humidification. Condensation might cause a fire, damage

to this unit, and/or electric shock.

CAUTION: Read this before operating your unit.

Thank you for selecting this YAMAHA NS-P430/NS-P436 Speaker Package.

● Do not cover the rear panel of this unit with a newspaper, a

tablecloth, a curtain, etc. in order not to obstruct heat radiation. If

the temperature inside this unit rises, it may cause fire, damage

to this unit and/or personal injury.

● Do not plug in this unit to a wall outlet until all connections are

completed.

● The voltage to be used must be the same as that specified on

the rear panel. Using this unit with a higher voltage than

specified is dangerous and may cause fire, damage to this unit,

and/or personal injury. YAMAHA will not be held responsible for

any damage resulting from use of this unit with a voltage other

than specified.

● To prevent lightning damage, disconnect the AC power plug

when there is an electric storm.

● Super-bass frequencies reproduced by this unit may cause a

turntable to generate a howling sound. In such a case, move this

unit away from the turntable.

● This unit may be damaged if certain sounds are continuously

outputted at high volume level. For example, if 20 Hz–50 Hz sine

waves from a test disc, bass sounds from electronic instruments,

etc. are continuously outputted, or when the stylus of a turntable

touches the surface of a disc, reduce the volume level to prevent

this unit from being damaged.

● If you hear distorted noise (i.e. unnatural, intermittent “rapping” or

“hammering” sounds) coming from this unit, reduce the volume

level. Extremely loud playing of a movie soundtrack’s low

frequency, bass-heavy sounds or similarly loud popular music

passages can damage this speaker system.

● Vibration generated by super-bass frequencies may distort

images on a TV. In such a case, move this unit away from the TV

set.

● When disconnecting the power cord from the wall outlet, grasp

the plug; do not pull the cord.

● When not planning to use this unit for a long period (i.e. vacation,

etc.), disconnect the AC power plug from the wall outlet.

● VOLTAGE SELECTOR

(For China, Korean and General models)

The voltage selector switch on the rear

panel of this unit must be set for your

local main voltage BEFORE plugging

this unit into the AC main supply.

Voltages are 110-120/220-240 V AC, 50/

60 Hz.

Standby mode

If the POWER switch is set to the ON position and the AUTO

STANDBY switch is set to the HIGH or LOW position, this unit

turns into the standby mode when no signal is received by this

unit for 7 to 8 minutes.

In this state, this unit is designed to consume a very small

quantity of power.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO

NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM1

E-2

CONTENTS

UNPACKING .................... Inside of Front Cover

CAUTION .........................................................1

COMPONENTS OF THE PACKAGE .............. 2

SETTING UP THE SPEAKERS ...................... 3

Placing the subwoofer ................................... 4

Placing the center speaker ............................. 4

Mounting the main/rear/center speakers

(and rear center speaker for NS-P436)

on a wall ............................................................

5

Mounting the main/rear speakers

(and rear center speaker for NS-P436)

by using commercially available speaker

stands or brackets .............................................

6

CONNECTIONS.............................................. 7

An example of basic connections .................... 7

How to connect speaker cables to the input

and output terminals of the speakers ............... 9

USING THE SUBWOOFER (YST-SW015) ... 10

Controls and their functions .......................... 10

Automatic power-switching function ................ 11

Adjusting the subwoofer before use ................ 12

Frequency characteristics ................................ 13

ADVANCED YAMAHA ACTIVE SERVO

TECHNOLOGY (for YST-SW015) ................ 14

TROUBLESHOOTING .................................. 15

SPECIFICATIONS ........................................ 16

COMPONENTS OF THE PACKAGE

<NX-430P>

2-way acoustic-suspension speaker system used for

the main and rear speakers (and rear center speaker for

NS-P436)

<NX-C430>

2-way acoustic-suspension speaker system used for

the center speaker

<YST-SW015>

Active Servo Processing Subwoofer System with a

built-in power amplifier

● This subwoofer system employs Advanced Yamaha

Active Servo Technology which YAMAHA has developed

for reproducing higher quality super-bass sound. (Refer to

page 14 for details on Advanced Yamaha Active Servo

Technology.) This super-bass sound adds a more

realistic, theater-in-the-home effect to your stereo system.

● The HIGH CUT control enables you to adjust the tone

balance between the subwoofer and the main speakers.

● The Automatic power-switching function saves you the

trouble of pressing the STANDBY/ON button to turn the

power on or turn it to the STANDBY mode.

The speaker package “NS-P430 and NS-P436” is designed

for use in a multi-channel audio system such as a home

theater system.

NS-P430 includes four NX-430P speaker systems, one NX-

C430 speaker system and one YST-SW015 subwoofer

system.

NS-P436 includes five NX-430P speaker systems, one NX-

C430 speaker system and one YST-SW015 subwoofer

system.

QD-Bass Technology

QD-Bass (Quatre Dispersion Bass) technology uses

square, pyramid-shaped reflective plates to radiate the

sound in four horizontal directions.

■ About this manual

• This manual is printed prior to production. Design

and specifications are subject to change in part for the

reason of the improvement in operativity ability, and

others. In this case, the product has priority.

• Some of the illustrations and names of the package

contents etc. written in this manual may differ from

the actual products and the names written on the

package etc.

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM2

English

E-3

SETTING UP THE SPEAKERS

Before making connections, place all speakers in their respective positions. The positioning of the speakers is important

because it controls the whole sound quality of this system.

Place the speakers depending on your listening position by following the instructions below.

Speaker configuration

<NS-P430>

This speaker package employs a 6 speaker configuration: 2

main speakers, 2 rear speakers, a center speaker and a

subwoofer.

The main speakers emit main source sound. The rear

speakers emit surround sounds, and the center speaker

emits center sounds (dialog etc.). The subwoofer emits

reinforcing low frequencies on your audio system.

<NS-P436>

This speaker package employs a 7 speaker configuration: 2

main speakers, 2 rear speakers, a center speaker, a rear

center speaker and a subwoofer.

The main speakers emit main source sound. The rear and

rear center speakers emit surround sounds, and the center

speaker emits center sounds (dialog etc.). The subwoofer

emits reinforcing low frequencies on your audio system.

Note

In this speaker package, the same speakers (NX-430P)

are used for the main and rear speakers (and rear

center speaker for NS-P436).

Placing speakers

Main speakers: On both sides of and at approximately

the same height as the TV set.

Rear speakers: Behind your listening position, facing

slightly inward. About 1.8 m (approx. 6

feet) from the floor.

Center speaker: Precisely between the main speakers.

Rear center speaker (for NS-P436):

Precisely between the rear speakers.

Subwoofer: The position of the subwoofer is not so

critical because low bass tones are not

highly directional.

Refer to “Placing the subwoofer” on

page 4 for a recommended positioning

of the subwoofer.

Main L Center Main R

Rear L

Subwoofer

Rear R

Main L

Main R

Subwoofer

Center

Rear L

Rear R

TV-set

Rear center

(for NS-P436)

Rear center

(for NS-P436)

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.

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM3

E-4

䡵 Placing the subwoofer

It is recommended to place the subwoofer on the outside of

either the right or the left main speaker. (See fig. Å .) The

placement shown in fig. ı is also possible, however, if the

subwoofer system is placed directly facing the wall, the

bass effect may die because the sound from it and the

sound reflected by the wall may cancel out each other. To

prevent this from happening, face the subwoofer system at

an angle as shown in fig. Å.

Note

There may be a case that you cannot obtain enough super-

bass sounds from the subwoofer when listening in the

center of the room. This is because “standing waves” have

been developed between two parallel walls and they cancel

the bass sounds.

In such a case, face the subwoofer obliquely to the wall. It

also may be necessary to break up the parallel surfaces by

placing bookshelves etc. along the walls.

Use the nonskid pads

Put the provided nonskid pads at the four corners on the

bottom of the subwoofer to prevent the subwoofer from

moving by vibrations etc.

( : Subwoofer, : Main speaker)

ıÅ

You can place the speaker on top of the TV if the top is flat,

on the floor under the TV, or inside the TV rack . Be sure to

place the speaker in a stable position.

When placing the speaker on top of the TV, to prevent the

speaker from falling, attach the provided fasteners at two

points on the bottom of the speaker and on the top of the

TV.

䡵 Placing the center speaker

Notes

● Do not place the speaker on top of a TV whose area is

smaller than the bottom of the speaker. If placed, the

speaker may fall and cause injury.

● Do not place the speaker on top of a TV if the top is

inclined.

● Do not touch the adhesive surface after peeling off

the seal as this will weaken its adhesive strength.

● Thoroughly wipe clean the surface where the fastener

is to be applied. Note that adhesive strength is

weakened if the surface is dirty, oily or wet and that

this may cause the center speaker to fall.

Peel off

the seal

Fastener

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM4

English

E-5

䡵 Mounting the main/rear/center speakers (and rear center

speaker for NS-P436) on the wall

You can mount the main, rear and/or center speakers (and/

or rear center speaker for NS-P436) on a wall.

To mount the speakers on a wall, use the holes of the

brackets attached on the speakers’ back panels.

1 Fasten two screws into a firm wall or wall support at the

interval shown below.

Main/rear/rear center (for NS-P436) .......... 26 mm (1”)

Center ............................................. 222.8 mm (8-3/4”)

2 Hang the speaker by mounting the holes on the

protruding screws.

* Make sure that the screws are securely affixed by the

narrow parts of the holes.

WARNING

● Each speaker weighs as follows.

Main/rear/rear center (for NS-P436)

...................................................... 1.2 kg (2 lbs. 10 oz.)

Center .......................................... 1.7 kg (3 lbs. 12 oz.)

Do not mount them on thin plywood or a wall

composed of a soft surface material. If mounted, the

screws may pull out of the flimsy surface and the

speakers may fall. This may damage the speakers or

cause personal injury.

● Do not affix the speakers to a wall using nails,

adhesives, or any other unstable hardware. Long-

term use and vibrations may cause the speakers to

fall.

● To avoid accidents resulting from tripping over loose

speaker cables, fix the cables to the wall.

● Select an appropriate position on the wall to mount

the speaker so that no one will injure his/her head or

face.

1

26 mm

Holes

2

Wall/ wall support

Tapping screw

(Available at the

hardware store)

Min.

20 mm

Diam. 3.5 to 4 mm

4 mm

Main/rear/rear center (for NS-P436)

Center

222.8 mm

Main/rear/rear center (for NS-P436)

Center

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM5

E-6

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 holes on the inner

surface of the cover with the four corresponding pegs on

the speaker and push gently.

Note

When the cover is removed, be sure not to touch the

speaker units with your hands or to exert excessive

force with tools.

Removing the front cover

Main/rear/rear center (for NS-P436)

Center

䡵 Mounting the main/rear speakers (and rear center speaker for

NS-P436) by using commercially available speaker stands or

brackets

Using the Yamaha Speaker Stand SPS-10MM (option)

By using the Yamaha Speaker Stand

SPS-10MM, speakers can be placed

on the floor. (Two stands make a set.)

* The SPS-10MM is not available in some areas.

60 mm

You can also use the screw holes on the bottom of the

speaker for installing the speakers on commercially

available speaker stands (if you do not use the

attached mounting brackets.)

A screw with a diameter of 4 mm

can be used.

(Hole depth : 10 mm)

SPS-10MM

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM6

English

E-7

SPEAKERS

MAIN

OUTPUT

SUB

WOOFER

CENTER

REAR CENTER

L

R

L

R

L

R

A

—

+

—

+

—

+

—

+

B

REAR

(SURROUND)

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

POWER

ON

OFF

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

CENTER CENTER

FRONT R

FRONT LFRONT L

REAR C

REAR R

REAR L

REAR R

CONNECTIONS

Caution: Plug in the subwoofer and other audio/video components after all connections are

completed.

䡵 An example of basic connections

Subwoofer

Amplifier

To AC outlet

Center speaker

Rear speaker

Right

LeftRight

Main speakers

Rear center speaker

(for NS-P436)

Rear speaker

Left

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM7

E-8

● Connect the main, center and rear speakers (and rear

center speaker for NS-P436) to the speaker output

terminals of your amplifier with the provided speaker

cables.

* The provided speaker cables have labels marked

FRONT L, FRONT R, CENTER, REAR L, REAR R

(and REAR C for NS-P436). Connect each speaker

cable to the corresponding speaker by following the

figure on page 7.

(The speaker cables marked FRONT L/R are used for

connecting the main speakers to the MAIN speakers’

terminals on the amplifier.)

* 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.

* For the main and rear speakers only, connect one

speaker to the left (marked L) terminals of your

amplifier, and another speaker to the right (marked R)

terminals.

● Connect the subwoofer to the line output (pin jack)

terminal(s) of the amplifier.

* To connect with a YAMAHA DSP amplifier (or AV

receiver), connect the SUBWOOFER (or LOW PASS

etc.) terminal on the rear of the DSP amplifier (or AV

receiver) to the L/MONO INPUT terminal of the

subwoofer.

* To connect the subwoofer to the SPLIT SUBWOOFER

terminals on the rear of the DSP amplifier, connect

them to both the left L/MONO and right R INPUT

terminals of the subwoofer.

Note

When connecting to a monaural line output terminal of the

amplifier, connect to the L/MONO INPUT terminal.

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM8

English

E-9

Main speakers

Center speaker

Use the provided speaker cables (4 m). One side of the

speaker cable is red and the other side is black.

Connect the (+) terminals on both the speaker and the

amplifier using the red side of the cable. Connect the (–)

terminals on both components using the black side.

Red: positive (+)

Black: negative (–)

Rear speakers

Rear center speaker (for NS-P436)

Use the provided speaker cables (15 m). One side of the

speaker cable has a gray line and the other side has no line.

Connect the (+) terminals on both the speaker and the

amplifier using the side with a gray line. Connect the (–)

terminals on both components using the side with no line.

Red: positive (+)

Black: negative (–)

䡵 How to connect speaker cables to the input terminals of the

speakers

For connections, keep the speaker cables as short as possible. Do not bundle or roll up the excess part of the cables. If the

connections are faulty, no sound will be heard from the speakers.

Before connecting

Remove the insulation coating at the extremity of each

speaker cable by twisting the coating off.

How to Connect:

1 Press and hold the terminal’s tab, as shown in the

figure.

2 Insert the bare wire.

3 Release your finger from the tab to allow it to lock

securely on the cable’s wire end.

4 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.

Gray line

Red

Black

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM9

E-10

USING THE SUBWOOFER (YST-SW015)

䡵 Controls and their functions

1 Power indicator

Lights up in green while the subwoofer is on.

Lights up in red while the subwoofer is set in the

standby mode by the operation of the automatic power-

switching function.

Goes off when the subwoofer is set in the standby

mode.

2 STANDBY/ON button

Press this button to turn on the power when the

POWER (

7) switch is set in the ON position. (The

power indicator lights up in green.)

Press again to set the subwoofer in the standby mode.

(The power indicator goes off.)

Standby mode

The subwoofer is still using a small amount of power

in this mode.

3 B.A.S.S. (Bass Action Selector System) button

When this button is pressed in to the MUSIC position,

the bass sound in audio software is well reproduced.

By pressing the button again so that it pops out at the

MOVIE position, the bass sound in video software is

well reproduced.

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

POWER

ON

OFF

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

SUBWOOFER SYSTEM YST-SW015

STANDBY/ON B.A.S.S. HIGH CUT

50

–

150Hz

VOLUME

0

–

10

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

SUBWOOFER SYSTEM YST-SW015

STANDBY/ON B.A.S.S. HIGH CUT

50

–

150Hz

VOLUME

0

–

10

POWER

ON

OFF

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

24513

98 0

7

6

Rear panel (General model)

Front panel

Port

4 HIGH CUT control

Adjusts the high frequency cut off point.

Frequencies higher than the frequency selected by this

control are all cut off (and no output).

* One graduation of this control represents 10 Hz.

5 VOLUME control

Adjusts the volume level. Turn the control clockwise to

increase the volume, and counterclockwise to

decrease the volume.

6 VOLTAGE SELECTOR switch

(For China, Korean and General models)

If the preset setting of the switch is incorrect, set the

switch to the proper voltage range (220V-240V or

110V-120V) of your area.

Consult your dealer if you are unsure of the correct

setting.

WARNING

Be sure to unplug the subwoofer before setting the

VOLTAGE SELECTOR switch correctly.

MOVIE MUSIC

50 Hz

60 Hz

70 Hz

80 Hz

90 Hz

140 Hz

130 Hz

120 Hz

110 Hz

100 Hz

150 Hz

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM10

English

E-11

7 POWER switch

Normally, set this switch to the ON position to use the

subwoofer. In this state, you can turn on the subwoofer

or turn the subwoofer into the standby mode by

pressing the STANDBY/ON (

2) button. Set this switch

to the OFF position to completely cut off the

subwoofer’s power supply from the AC line.

8 INPUT terminals

Used to input line level signals from the amplifier.

(Refer to “CONNECTIONS” for details.)

9 AUTO STANDBY (HIGH/LOW/OFF) switch

This switch is originally set to the OFF position. By

setting this switch to the HIGH or LOW position, the

subwoofer’s automatic power-switching function

operates as described below. If you do not need this

function, leave this switch in the OFF position.

* Make sure to change the setting of this switch only

when the subwoofer is set in the standby mode by

pressing the STANDBY/ON (

2) button.

0 PHASE switch

Normally this switch is to be set to the REV (reverse)

position. However, according to the listening condition

or your preference, there may be a case when better

sound quality is obtained by setting this switch to the

NORM (normal) position. Select the better position by

monitoring the sound.

If the source being played is stopped and the input signal is

cut off for 7 to 8 minutes, the subwoofer automatically

switches to the standby mode. (When the subwoofer

switches to the standby mode by the automatic power-

switching function, the power indicator lights up in red.)

When you play a source again, the power of the subwoofer

turns on automatically by sensing audio signals input to the

subwoofer.

This function operates by sensing a certain level of low

frequency input signal. Usually set the AUTO STANDBY

switch to the LOW position. However, if this function does

not operate smoothly, set the switch to the HIGH position. In

the HIGH position, the power will turn on even with a low

level of input signal. But please be aware that the subwoofer

may not switch to the standby mode when there is an

extremely low input signal.

* The power might turn on unexpectedly by sensing noise

from other appliances. If that occurs, set the AUTO

STANDBY switch to the OFF position and use the

STANDBY/ON button to switch the power between on

and in the standby mode manually.

* This function detects the low-frequency components

below 200 Hz of the input signals (i.e., the explosion in

the action movie, the sound of the bass guitar or the bass

drum, etc.).

* The minutes required to switch the subwoofer to the

standby mode might change by sensing noise from other

appliances.

This function is available only when the power of the

subwoofer is on (by pressing the STANDBY/ON button).

䡵 Automatic power-switching function

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM11

E-12

1 Set the VOLUME control to minimum (0).

2 Turn on the power of all the other

components.

3 Make sure that the POWER switch is set to

the ON position, then press the STANDBY/

ON button to turn on the subwoofer.

* The Power indicator lights up in green.

4 Play a source containing low-frequency

components and adjust the amplifier’s

volume control to the desired listening level.

5 Adjust the HIGH CUT control to the position

where the desired response can be

obtained.

This system is designed so that the optimum tone

balance between the subwoofer and the main speakers

(NX-430P) is obtained when this control is set at 110

Hz. However, the tone balance may change depending

on the room size, the distance from the subwoofer to

the main speakers, etc. So, if you prefer, turn the HIGH

CUT control and set it to a position where a better tone

balance is obtained.

6 Increase the volume gradually to adjust the

volume balance between the subwoofer and

the main speakers.

䡵 Adjusting the subwoofer before use

Before using the subwoofer, adjust the subwoofer to obtain the optimum volume and tone balance between the subwoofer and

the main speakers by following the procedures described below.

7 Set the PHASE switch to the position which

gives you the better bass sound.

Normally, set the switch to the REV (reverse) position. If

the desired response cannot be obtained, set the switch

to the NORM (normal) position.

8 Select “MOVIE” or “MUSIC” according to the

played source.

MOVIE: When a movie type source is played, the low-

frequency effects are enhanced to allow the listener

enjoy more powerful sound. (The sound will be thicker

and deeper.)

MUSIC: When an ordinary music source is played, the

excessive low-frequency components are cut off to

make the sound clearer. (The sound will be lighter and

reproduces the melody line more clearly.)

• Once the volume balance between the subwoofer and

the main speakers is adjusted, you can adjust the

volume of your whole sound system by using the

amplifier’s volume control.

However, if you change the main speakers NX-430P

to others, you must make this adjustment again.

• For adjusting the VOLUME control, the HIGH CUT

control and the PHASE switch, refer to “Frequency

characteristics” on the next page.

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

POWER

ON

OFF

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

SUBWOOFER SYSTEM YST-SW015

STANDBY/ON B.A.S.S. HIGH CUT

50

–

150Hz

VOLUME

0

–

10

INPUT

/MONO

OFF LOW HIGH

AUTO

STANDBY

NORM REV

PHASE

SUBWOOFER SYSTEM YST-SW015

STANDBY/ON B.A.S.S. HIGH CUT

50

–

150Hz

VOLUME

0

–

10

POWER

ON

OFF

1, 6583

3

7

Rear panel

Front panel

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM12

English

E-13

䡵 Frequency characteristics

Adjustment of the VOLUME control, the HIGH CUT control and the PHASE switch should be changed depending on the room

size, the distance from the subwoofer to the main speakers, sources, etc.

Following figures show the optimum adjustment of each control and the frequency characteristics when this subwoofer is

combined with NX-430P.

Frequency characteristics of this subwoofer

(YST-SW015)

●

When combined with NX-430P

PHASE–Set to the REV

(reverse) position.

B.A.S.S.–MOVIE

HIGH CUT50

–

150Hz VOLUME

0

–

10

100

YST-SW015

NX-430P

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM13

E-14

ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY

(for YST-SW015)

The theory of Yamaha Active Servo Technology has been

based upon two major factors, the Helmholtz resonator and

negative-impedance drive. Active Servo Processing

speakers reproduce the bass frequencies through an “air

woofer”, which is a port or opening in the speaker’s cabinet.

This opening is used instead of, and performs the functions

of, a woofer in a conventionally designed speaker system.

Thus, signals of low amplitude within the cabinet can,

according to the Helmholtz resonance theory, be outputted

from this opening as waves of great amplitude if the size of

the opening and the volume of the cabinet are in the correct

proportion to satisfy a certain ratio.

In order to accomplish this, moreover, the amplitudes within

the cabinet must be both precise and of sufficient power

because these amplitudes must overcome the “load”

presented by the air that exists within the cabinet.

Thus it is this problem that is resolved through the employ-

ment of a new design in which the amplifier supplies special

signals. If the electrical resistance of the voice coil could be

reduced to zero, the movement of the speaker unit would

become linear with respect to signal voltage. To accomplish

this, a special negative-impedance output-drive amplifier for

subtracting output impedance of the amplifier is used.

By employing negative-impedance drive circuits, the

amplifier is able to generate precise, low-amplitude, low-

frequency waves with superior damping characteristics.

These waves are then radiated from the cabinet opening as

high-amplitude signals. The system can, therefore, by

employing the negative-impedance output drive amplifier

and a speaker cabinet with the Helmholtz resonator,

reproduce an extremely wide range of frequencies with

amazing sound quality and less distortion.

The features described above, then, are combined to be the

fundamental structure of the conventional Yamaha Active

Servo Technology.

Our new Active Servo Technology — Advanced Yamaha

Active Servo Technology — adopted Advanced Negative

Impedance Converter (ANIC) circuits, which allows the

conventional negative impedance converter to dynamically

vary in order to select an optimum value for speaker

impedance variation. With this new ANIC circuits, Advanced

Yamaha Active Servo Technology can provide more stable

performance and improved sound pressure compared with

the conventional Yamaha Active Servo Technology, resulting

in more natural and dynamic bass reproduction.

High-amplitude

bass sound

Cabinet

Port

Air woofer

(Helmholtz resonator)

Active Servo

Processing

Amplifier

Signals

Signals of low amplitude

Advanced Negative-

impedance Converter

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM14

English

E-15

Problem

No sound.

Sound level is too low.

What to Do

Connect them securely.

Connect them correctly, that is L (left) to

L, R (right) to R, “+” to “+” and “–” to “–”.

Cause

Speaker cables are not connected

securely.

Speaker cables are not connected

correctly.

TROUBLESHOOTING

Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if

the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service

center.

Problem

Power is not supplied even

though the STANDBY/ON button

is set to the ON position.

No sound.

Sound level is too low.

The subwoofer does not turn on

automatically.

The subwoofer does not turn into

the standby mode automatically.

The subwoofer turns into the

standby mode unexpectedly.

The subwoofer turns on

unexpectedly.

What to Do

Connect it securely.

Set the POWER switch to the ON

position.

Turn the VOLUME control to the right.

Connect them securely.

Connect them correctly, that is L (left) to

L, R (right) to R, “+” to “+” and “–” to “–”.

Set the switch to the other position.

Play a source sound with bass

frequencies.

Set the HIGH CUT control to a higher

position.

Reposition the subwoofer or break up

the parallel surface by placing

bookshelves etc. along the walls.

Set the POWER switch to the ON

position.

Set the STANDBY/ON button to the ON

position.

Set the AUTO STANDBY switch to the

“HIGH” or “LOW” position.

Set the AUTO STANDBY switch to the

“HIGH” position.

Move the subwoofer further away from

such appliances and/or reposition the

connected speaker cables.

Otherwise, set the AUTO STANDBY

switch to the “OFF” position.

Set the AUTO STANDBY switch to the

“HIGH” or “LOW” position.

Set the AUTO STANDBY switch to the

“HIGH” position.

Move the subwoofer farther away from

such appliances and/or reposition the

connected speaker cables.

Otherwise, set the AUTO STANDBY

switch to the “OFF” position.

Cause

The power plug is not securely

connected.

The POWER switch is set to the OFF

position.

The VOLUME control is set to 0.

Speaker cables are not connected

securely.

Speaker cables are not connected

correctly.

Setting of the PHASE switch is not

proper.

A source sound with few bass

frequencies is played.

It is influenced by standing waves.

The POWER switch is set to the OFF

position.

The STANDBY/ON button is set to the

OFF position.

The AUTO STANDBY switch is set to

the OFF position.

The level of input signal is too low.

There is an influence of noise

generated from external appliances etc.

The AUTO STANDBY switch is set to

the OFF position.

The level of input signal is too low.

There is an influence of noise

generated from external appliances etc.

For YST-SW015

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM15

E-16

SPECIFICATIONS

䡵 NX-430P, NX-C430

Type ............... 2-way acoustic-suspension speaker system

Magnetic shielding type

Driver

<NX-430P>....................... Coaxial 2-way [5 cm (2”) cone

and 1.3 cm (1/2”) dome] speaker x 1

5 cm (2”) full range cone speaker x 1

<NX-C430> ...................... Coaxial 2-way [5 cm (2”) cone

and 1.3 cm (1/2”) dome] speaker x 1

5 cm (2”) full range cone speaker x 2

Nominal Input Power ................................................. 30W

Maximum Input Power ............................................. 100W

Impedance ..................................................................... 6Ω

Frequency Response ............................... 70 Hz to 60 kHz

Sensitivity

<NX-430P>............................................... 85 dB/2.83V/m

<NX-C430> .............................................. 86 dB/2.83V/m

Dimensions (W x H x D)

<NX-430P>.......................... 87 mm x 184 mm x 147 mm

(3-7/16” x 7-1/4” x 5-13/16”)

<NX-C430> ......................... 273 mm x 81 mm x 147 mm

(10-3/4” x 3-3/16”x 5-13/16”)

Weight

<NX-430P>...................................... 1.2 kg (2 lbs. 10 oz.)

<NX-C430> ..................................... 1.7 kg (3 lbs. 12 oz.)

䡵 YST-SW015

Type ............... Advanced Yamaha Active Servo Technology

Magnetic shielding type

Driver ....................................... 16 cm (6-1/2”) cone woofer

Amplifier Output .................................................. 70 W/5Ω

Frequency Response ...............................30 Hz to 200 Hz

Power Supply

U.S.A. and Canada models .................... AC 120V, 60 Hz

U.K. and Europe models ........................ AC 230V, 50 Hz

Australia model....................................... AC 240V, 50 Hz

China, Korean and General models

....................................... AC 110-120/220-240V, 50/60 Hz

Power Consumption ................................................. 70 W

Standby Power Consumption ................................. 0.8 W

Dimensions (W x H x D) ..... 280 mm x 325 mm x 320 mm

(11” x 12-13/16” x 12-5/8”)

Weight ................................................ 9.2 kg (20 lbs. 4 oz.)

* Specifications are subject to change without notice due to

product improvements.

NS-P430-436 ENG(03.2.19)a 03.2.28, 11:53 AM16

Français

F-1

●

Pour garantir les meilleures performances possibles, lire ce

manuel avec attention. Le garder dans un endroit sûr pour une

utilisation ultérieure.

●

Installer ces enceintes dans un endroit frais, sec et propre – loin

de fenêtres, sources de chaleur et d’endroits où les vibrations, la

poussière, l’humidité ou le froid sont importants. Eviter les

sources de bourdonnements (transformateurs, moteurs). Pour

éviter les incendies ou l’électrocution, ne pas exposer ces

enceintes à la pluie ni à l’humidité.

●

Pour éviter que le coffret ne gondole ou se décolore, ne pas

placer les enceintes à un endroit ou elles seront exposées aux

rayons directs du soleil ou à une trop forte humidité.

●

Eviter de placer les enceintes dans un endroit où elles

risqueraient d’être percutées par des objets tombants et/ou où

elles risqueraient d’être éclaboussées par du liquide.

Ne pas placer les objets suivants sur les enceintes :

●

D’autres composants, car ils pourraient endommager et/ou

décolorer la surface des enceintes.

●

Des objets inflammables (ex. des bougies), car elles

pourraient provoquer un incendie, endommager les enceintes

et/ou provoquer des blessures corporelles.

●

Des récipients contenant des liquides, car ils pourraient provoquer

une décharge électrique et/ou endommager les enceintes.

●

Ne pas placer les enceintes à un endroit où elles risquent d’être

renversées ou percutées par des objets tombants. Un endroit

bien stable améliorera aussi la qualité du son.

●

Si les enceintes sont placées sur la même étagère ou dans le

même meuble que le tourne-disque, un effet de retour sonore

risquera de se produire.

●

Le propriétaire du système est entièrement responsable du bon

positionnement et de la bonne installation du système.

YAMAHA décline toute responsabilité en cas d’accident causé par

un positionnement ou une installation inadéquats des enceintes.

●

Si des distorsions sonores se produisent, réduire le niveau sonore

en baissant la commande de volume de l’amplificateur. Ne jamais

laisser de “pincement” sonore se produire sur l’amplificateur.

Sinon, les enceintes risqueront d’être endommagées.

●

Lorsqu’on utilise un amplificateur dont la puissance de sortie

nominale est supérieure à la puissance d’entrée nominale des

enceintes, il faut veiller à ne pas dépasser l’entrée maximale des

enceintes.

●

Ne pas essayer de nettoyer ces enceintes avec des diluants

chimiques, ceci endommagerait le fini. Utiliser un chiffon propre

et sec.

●

Ne pas essayer de modifier ni de réparer les enceintes. Contacter

un dépanneur YAMAHA qualifié en cas de nécessité de réparation.

Le coffret ne doit jamais être ouvert pour quelque raison que ce soit.

●

Bien lire la section “EN CAS DE DIFFICULTE” concernant les

erreurs de fonctionnement communes avant de conclure que les

enceintes sont défecteuses.

Pour le YST-SW015

●

Ne pas utiliser cet appareil à l’envers. Il risque d’être en

surchauffe et de provoquer des dommages.

●

Ne pas forcer les commutateurs, les touches ou les câbles de

raccordement. Lors du déplacement de l’appareil, d’abord

débrancher la prise d’alimentation et les câbles le raccordant à

d’autres appareils. Ne jamais tirer sur les cordons.

●

Cet appareil possédant un amplificateur intégré, de la chaleur sera

irradiée par le panneau arrière. Par conséquent, placer l’appareil à

une certaine distance des murs, en laissant suffisamment d’espace

au-dessus, derrière et des deux côtés de l’appareil afin d’éviter tout

risque de dommage ou d’incendie. Ne pas positionner non plus cet

appareil dos au plancher ou à une autre surface.

<Modèles pour le Royaume-Uni et l’Europe>

Laisser un espace d’au moins 20 cm au-dessus, derrière et des

deux côtés de l’appareil.

PRECAUTIONS D’USAGE : Tenir compte des précautions

ci-dessous avant de faire fonctionner l’appareil.

Nous vous remercions d’avoir porté votre choix sur cet ensemble d’enceintes NS-P430/NS-P436 de YAMAHA.

●

En utilisant un humidificateur, éviter la condensation à l’intérieur

de l’appareil en libérant la place autour de l’appareil ou en

évitant l’humidification extrême. La condensation peut causer un

feu, des dommages à l’appareil et/ou une électrocution.

●

Ne pas couvrir le panneau arrière de cet appareil avec quoi que

ce soit, journal, nappe, rideau, etc. afin de ne pas entraver la

dissipation de la chaleur. Si la température à l’intérieur de cet

appareil augmente, un incendie peut se déclarer et endommager

cet appareil et/ou causer une blessure corporelle.

●

Ne pas brancher cet appareil à une prise murale avant d’avoir

terminé toutes les connexions.

●

Le voltage à utiliser doit être le même que celui spécifiée sur le

panneau arrière. Utiliser cet appareil avec une plus haute tension

que celle spécifiée est dangereux et peut causer un incendie,

endommager cet appareil et/ou causer une blessure corporelle.

YAMAHA ne se tienda pas responsable d’aucun dommage

résultant de l’utilisation de cet appareil avec une tension autre

que spécifiée.

●

Pour prévenir tout dégât dû à la foudre, débrancher la prise

d’alimentation CA en cas d’orage.

●

Les sons de très basse fréquence produits par cet appareil

peuvent provoquer un sifflement sur le tourne-disque. Dans ce

cas, éloigner cet appareil du tourne-disque.

●

Cet appareil peut être endommagé si certains sons sont

continuellement émis à um niveau sonore élevé. Par exemple, si

des ondes sinusoïdales de 20–50 Hz d’un disque d’essai, des

sons de graves d’instruments électroniques, etc. sont émis en

continu ou si la pointe de lecture d’une platine tourne-disque

touche la surface d’un disque, réduire le niveau de volume pour

éviter d’endommager cet appareil.

●

Si une distorsion se fait entendre (par exemple des petits coups

secs intermittents ou un “martèlement”) sur cet appareil, diminuer

le niveau sonore. La lecture à très haut volume des sons de basse

ou des sons de basses fréquence de la bande sonore d’un film,

ou de passages de musique populaire de forte intensité, sont

susceptibles d’endommager ce système d’enceintes.

●

Des vibrations générées par des fréquences supergraves

risquent de déformer les images sur un téléviseur. Dans ce cas,

éloigner cet appareil du téléviseur.

●

Lors du débranchement du cordon d’alimentation de la prise

murale, saisir la fiche ; ne pas tirer le cordon.

●

Lorsqu’on prévoit de ne pas utiliser cet appareil pendant

longtemps (pendant les vacances, par exemple), débrancher le

cordon d’alimentation CA de la prise murale.

●

VOLTAGE SELECTOR (Interrupteur de sélection de tension)

(Modèles pour la Chine, la Corée et général)

Le sélecteur de tension sur le

panneau arrière de cet appareil

doit être réglé sur la tension locale

AVANT de brancher l’appareil sur

une prise de courant CA.

Les tensions sont de

110-120/220-240 V CA, 50/60 Hz.

Mode veille

Si l’interrupteur POWER est mis sur la position ON et le

commutateur AUTO STANDBY sur la position HIGH ou LOW, cet

appareil passe en mode veille lorsqu’aucun signal ne parvient à

cet appareil pendant 7 ou 8 minutes. Dans cet état, l’appareil

consomme une très faible quantité de courant.

AVERTISSEMENT

AFIN D’ÉVITER TOUT RISQUE D’INCENDIE OU

D’ÉLECTROCUTION, NE PAS EXPOSER L’APPAREIL À LA

PLUIE NI À L’HUMIDITÉ.

110V

–

120V 220V

–

240V

VOLTAGE

SELECTOR

P430-436Fre(03.2.28)a 03.2.28, 11:53 AM1

F-2

TABLE DES MATIERES

DEBALLAGE ........ Intérieur du couvercle avant

PRECAUTIONS D’USAGE ..............................1

ELEMENTS DE L’ENSEMBLE ....................... 2

DISPOSITION DES ENCEINTES ................... 3

Positionnement du subwoofer ......................... 4

Positionnement d’enceinte centrale ................. 4

Montage au mur des enceintes principale/

arrière/centrale (et de l’enceinte arrière

centrale pour le NS-P436) au mur .....................

5

Montage des enceintes principale/arrière

(et de l’enceinte arrière centrale pour le NS-

P436) en utilisant des supports et des pieds

d’enceintes disponibles dans le commerce .......

6

CONNEXIONS ................................................ 7

Exemple de raccordement de base ................. 7

Raccordement des câbles d’enceinte aux

bornes d’entrée des enceintes ........................ 9

UTILISATION DU SUBWOOFER

(YST-SW015) ................................................ 10

Les commandes et leurs fonctions ................ 10

Fonction de commutation de l’alimentation

automatique

............................................... 11

Réglage du subwoofer avant l’utilisation ......... 12

Caractéristiques de fréquence ........................ 13

ADVANCED YAMAHA ACTIVE SERVO

TECHNOLOGY (pour YST-SW015) ............. 14

EN CAS DE DIFFICULTE ............................. 15

CARACTERISTIQUES TECHNIQUES ......... 16

ELEMENTS DE L’ENSEMBLE

<NX-430P>

Système d’enceintes à deux voies et à suspension

acoustique utilisé pour les enceintes principales et

arrière (et enceinte arrière centrale pour le NS-P436)

<NX-C430>

Système d’enceintes à deux voies et à suspension

acoustique utilisé pour l’enceinte centrale

<YST-SW015>

Subwoofer à Active Servo Processing avec

amplificateur incorporé

● Ce subwoofer utilise Advanced Yamaha Active Servo

Technology mise au point par YAMAHA pour la

reproduction de basses fréquences de meilleure qualité.

(Pour ce qui concerne Advanced Yamaha Active Servo

Technology, se reporter à la page 14.) Ces basses

fréquences ajoutent un effet réaliste cinématographique

aux sons fournis par une chaîne stéréo.

● Le contrôle HIGH CUT permet d’ajuster la balance entre

le subwoofer et les enceintes principales.

● La fonction de commutation d’alimentation automatique

évite d’appuyer sur la touche STANDBY/ON pour allumer

et pour mettre l’appareil en mode STANDBY.

L’ensemble d’enceintes “NS-P430” et “NS-P436” est conçu

pour être utilisé avec un système audio multi-canaux, telle

qu’une installation Home Cinéma.

Le NS-P430 contient quatre systèmes d’enceintes NX-430P,

un système d’enceinte NX-C430 et un subwoofer YST-

SW015.

Le NS-P436 contient cinq systèmes d’enceintes NX-430P, un

système d’enceinte NX-C430 et un subwoofer YST-SW015.

Technologie QD-Bass

La technologie QD-Bass (Quatre Dispersion Bass)

utilise des plaques réfléchissantes carrées, de forme

pyramidale pour rayonner le son dans les quatre

directions horizontales.

■ Quelques ¡mots sur ce mode d’emploi

• Ce mode d’emploi a été imprimé avant la fabrication

du système. La présentation et les caractéristiques de

ce dernier peuvent être modifiées pour des raisons de

simplicité de fonctionnement, ou des raisons

similaires. Ce sont des cas où le système a la priorité

sur le mode d’emploi.

• Certaines illustrations et noms du contenu de

l’emballage, etc., apparaissant dans ce mode d’emploi

peuvent différer du produit réel et de ceux qui figurent

sur l’emballage, etc.

P430-436Fre(03.2.28)a 03.2.28, 11:53 AM2

Pagina se încarcă...

Yamaha NX-430P Manualul proprietarului

Acest manual este potrivit și pentru

Yamaha NX-430P Manualul proprietarului

în alte limbi

Lucrări înrudite