background image

5

English

This subwoofer system employs YAMAHA Active Servo
Technology which YAMAHA developed for reproducing
higher quality super-bass sound.  (Refer to page 11 for
details on Active Servo Technology.)
This unit does not only enhance bass frequency response
of sound output in your audio system, but, by reproducing
the bass frequencies, the subwoofer permits your existing
amplifier and speakers to operate under less strenuous
conditions, improving overall system performance.

This unit can be added easily to your existing audio system
by connecting to either the speaker terminals or the line
output (pin jack) terminals of the amplifier.  

For the effective use of this unit, this unit’s super-bass
sound must be matched to the sounds of your main
speakers.  Therefore, this unit employs a continuously
variable high frequency cut-off point (HIGH CUT) control.

A newly employed AUTO POWER ON/OFF switch saves
you the trouble of pressing the POWER switch when turning
the power on and off. 

If using one subwoofer, it is recommended to place it on the
outside of either the right or the left main speaker. (See fig.

.)  If using two subwoofers, it is recommended to place them

on the outside of each main speaker. (See fig.     .)  The
placement shown in fig.      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.  To prevent this, face the
subwoofer system obliquely to the wall as shown in fig.      or

.

One subwoofer will have a good effect on your audio system,
however, the use of two subwoofers is recommended to obtain
more presence.

Note
There may be a case that you cannot obtain enough super-
bass sounds from this unit when listening at the middle of the
room.  This is because “standing waves” have developed
between two parallel walls and the bass sounds are being
canceled.
In such a case, face the unit obliquely to the wall.  It also may
be necessary to break up the parallel surfaces by placing
bookshelves etc. along the walls.

FEATURES

PLACEMENT

A

B

C

A

A

C

B

B

(         : subwoofer,        : main speaker)

Summary of Contents for YST-SW40

Page 1: ...ystem Enceinte pour très basses fréquences de traitement à asservissement actif YST SW40 Active Servo Technology Thank you for selecting this YAMAHA Subwoofer System Nous vous remercions d avoir porté votre choix sur cette enceinte pour très basses fréquences YAMAHA ...

Page 2: ...ce receptacles and the point where they exit from the unit 12 Cleaning The unit should be cleaned only as recommended by the manufacturer 13 Nonuse Periods The power cord of the unit should be unplugged from the outlet when left unused for a long period of time 14 Object and Liquid Entry Care should be taken so that objects do not fall into and liquids are not spilled into the inside of the unit 1...

Page 3: ...ulations Part 15 for Class B digital devices Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices This equipment generates uses radio frequencies and if not installed and used according to the instructions found in the users manual may cause interf...

Page 4: ...g a super bass sound Be careful not to put a hand or some objects into the port otherwise it may give you an electric shock or give this unit a damage or cause a fire 14 Voltage Selector General Model only The voltage selector on the rear panel of this unit must be set for your local main voltage BEFORE plugging into the AC main supply Voltages are AC 110 120 220 240V 50 60 Hz IMPORTANT Please rec...

Page 5: ...itch when turning the power on and off If using one subwoofer it is recommended to place it on the outside of either the right or the left main speaker See fig If using two subwoofers it is recommended to place them on the outside of each main speaker See fig The placement shown in fig is also possible however if the subwoofer system is placed directly facing the wall the bass effect may die becau...

Page 6: ...l for each component to be connected to this unit CONNECTING TO SPEAKER TERMINALS OF THE AMPLIFIER Disconnect your main speakers from the amplifier and connect them to this unit If using one unit If using two units CONNECTIONS OUTPUT INPUT1 TO SPEAKERS FROM AMPLIFIER INPUT2 ON OFF AUTO POWER To AC outlet This unit OUTPUT INPUT2 TO SPEAKERS INPUT1 FROM AMPLIFIER ON OFF AUTO POWER Right speaker Left...

Page 7: ...t as this could damage this unit your amplifier and or speakers How to Connect Red positive Black negative Unscrew the knob Insert the bare wire Remove approx 5mm 1 4 insulation from the speaker wires Tighten the knob and secure the wire Banana Plug connections are also possible except for U K and Europe models Simply insert the Banana Plug connector into the corresponding terminal Connecting to t...

Page 8: ... line output terminals of the amplifier other speakers should not be connected to the OUTPUT terminals on the rear panel of this unit If connected they will not produce sound When connecting to a monaural line output terminal of the amplifier connect to either the left or right INPUT 2 terminal 8 OUTPUT INPUT1 TO SPEAKERS FROM AMPLIFIER INPUT2 ON OFF AUTO POWER PRE OUT Amplifier Pin plug cords Rig...

Page 9: ...f this switch only when the power of this unit is off Automatic power ON OFF function When you play a source the power to this unit turns on automatically by sensing audio signals input to this unit The power turns off automatically if the source being played is stopped or the input signal is cut off for several minutes This function will operate responding to a certain level of input signal Incre...

Page 10: ...le more bass effect than when this unit is not used On the basis of this setting if desired adjust the VOLUME control and the HIGH CUT control again The main speakers minimum reproduceable frequency can be looked up in the speakers catalog or owner s manual FREQUENCY CHARACTERISTICS Adjustment of the VOLUME control and the HIGH CUT control should be changed according to the main speakers listening...

Page 11: ...s resolved through the employment of a design in which the amplifier functions to supply 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 and to accomplish this a special negative impedance output drive amplifier for subtracting output impedance of the amplifier is used By emp...

Page 12: ...If the unit fails to operate normally check the following points to determine whether the fault can be corrected by the simple measures suggested If it cannot be corrected or if the fault is not listed in the SYMPTOM column disconnect the power cord and contact your authorized YAMAHA dealer or service center for help TROUBLESHOOTING SPECIFICATIONS ype Active Servo Processing Subwoofer System Speak...

Page 13: ...ns 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 11 Bien que cet appareil est doté d une protection anti magnétique il est possible que la couleur des images d un téléviseur placé à proximité immédiate se trouve affectée Dans ce cas éloigner cet appareil du téléviseur 12 Si une distorsion se...

Page 14: ... il est recommandé de la placer sur le côté extérieur de l enceinte principale droite ou gauche Voir la fig Lorsqu on utilise deux enceintes pour très basses fréquences il est recommandé de les placer sur le côté extérieur de chacune des enceintes principales Voir la fig Il est également possible de positionner les enceintes comme indiqué à la fig cependant si l enceinte pour très basses fréquence...

Page 15: ...EUR Débrancher les enceintes principales de l amplificateur et les raccorder à cet appareil Raccordement d un seul appareil Raccordement de deux appareils OUTPUT INPUT1 TO SPEAKERS FROM AMPLIFIER INPUT2 ON OFF AUTO POWER To AC outlet This unit OUTPUT INPUT2 TO SPEAKERS INPUT1 FROM AMPLIFIER ON OFF AUTO POWER Right speaker Left speaker Amplifier OUTPUT INPUT1 TO SPEAKERS FROM AMPLIFIER INPUT2 ON OF...

Page 16: ...ersés le son obtenu ne sera pas naturel et manquera de basses Veiller à ce que les câbles dénudés ne se touchent pas ou n entrent pas en contact avec les parties métalliques de cet appareil car ceci pourrait abîmer cet appareil l amplificateur et ou les enceintes Branchement Rouge positif Noir négatif Dévisser le bouton Introduire le câble dénudé Enlever environ 5 mm de gaîne pour dénuder le câble...

Page 17: ...oit être raccordée aux bornes OUTPUT du panneau arrière de cet appareil Cette enceinte ne produirait alors aucun son Pour faire un raccordement à une borne de sortie de ligne mono de l amplificateur raccorder la borne gauche ou bien la droite INPUT 2 à cette borne OUTPUT INPUT1 TO SPEAKERS FROM AMPLIFIER INPUT2 ON OFF AUTO POWER PRE OUT Amplifier Pin plug cords Right speaker Left speaker To AC out...

Page 18: ...le réglage de cet interrupteur seulement lorsque cet appareil est hors tension Fonction de mise sous hors tension automatique Lors de la lecture d une source cet appareil se met automatiquement sous tension en détectant les signaux audio envoyés vers l appareil L appareil se met automatiquement hors tension si la source en cours de lecture est arrêtée ou si le signal d entrée est coupé pendant plu...

Page 19: ...r un peu plus d effet de basses que lorsque cet appareil n est pas utilisé Sur la base de ce réglage le cas échéant régler à nouveau la commande VOLUME et la commande HIGH CUT La fréquence minimum qu il est possible de reproduire sur les enceintes principales peut être trouvée dans leur catalogue ou leur mode d emploi CARACTERISTIQUES DE FREQUENCE Le réglage de la commande VOLUME et de la commande...

Page 20: ...d air de l enceinte Ce problème est résolu électroniquement grâce à un amplificateur spécial qui fournit le signal satisfaisant à toutes les conditions Si la résistance électrique de la bobine du haut parleur pouvait être réduite à zéro le cône du haut parleur répondrait de façon linéaire aux variations de voltage du signal ceci peut être simulé grâce à un circuit d attaque à impédance négative qu...

Page 21: ...en plaçant des étagères etc le long des murs EN CAS DE DIFFICULTE Si l appareil ne fonctionne pas correctement avant de conclure qu il est en panne le vérifier selon la liste de problèmes possibles suivante Cette liste donne des détails sur les remèdes que vous pouvez appliquer vous même sans avoir à appeler un spécialiste Si vous avez quelque doute ou question consulter votre revendeur officiel Y...

Page 22: ...BEI HAMBURG F R OF GERMANY YAMAHA ELECTRONIQUE FRANCE S A RUE AMBROISE CROIZAT BP70 CROISSY BEAUBOURG 77312 MARNE LA VALLEE CEDEX02 FRANCE YAMAHA ELECTRONICS UK LTD YAMAHA HOUSE 200 RICKMANSWORTH ROAD WATFORD HERTS WD1 7JS ENGLAND YAMAHA SCANDINAVIA A B J A WETTERGRENS GATA 1 BOX 30053 400 43 VÄSTRA FRÖLUNDA SWEDEN YAMAHA MUSIC AUSTRALIA PTY LTD 17 33 MARKET ST SOUTH MELBOURNE 3205 VIC AUSTRALIA V...

Reviews: