Yamaha SW-3 Owner'S Manual Download Page 5

5

English

This subwoofer system employs YAMAHA Active Servo
Technology which YAMAHA developed for reproducing
higher quality super-bass sound.  (Refer to page 12 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.

Use the rubber pads
Put the provided rubber pads at the four corners on the bottom
of this unit to prevent this unit moving due to vibrations etc.

FEATURES

PLACEMENT

(         : subwoofer,        : main speaker)

A

B

C

A

A

B

B

C

Summary of Contents for SW-3

Page 1: ... System Enceinte pour très basses fréquences de traitement à asservissement actif SW 3 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: ... 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 15 ...

Page 3: ... determined by turning the unit OFF and ON please try to eliminate the problem by using one of the following measures Relocate either this product or the device that is being affected by the interference Utilize power outlets that are on different branch circuit breaker or fuse circuits or install AC line filter s In the case of radio or TV interference relocate reorient the antenna If the antenna...

Page 4: ...d In such a case move this unit away from the turntable 11 As this speaker contains strong magnet avoid placing watches magnetic tapes etc near this unit Also placing the speaker near a TV set may impair picture color If this happens move the TV set away from the speaker 12 If you hear distortion i e unnatural intermittent rapping or hammering sounds coming from this unit reduce the volume level E...

Page 5: ...mended 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 pr...

Page 6: ...MINALS OF THE AMPLIFIER Disconnect your main speakers from the amplifier and connect them to this unit To connect one unit only To connect two units CONNECTIONS INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS ON OFF AUTO POWER HIGH CUT STANDBY RED ON GREEN VOLUME 150 Hz 0 10 50 Hz POWER OFF ON INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS ON OFF AU...

Page 7: ...could damage this unit your amplifier and or speakers How to Connect Red positive Black negative 1Unscrew the knob 2Insert the bare wire Remove approx 5mm 1 4 insulation from the speaker wires 3Tighten the knob and secure the wire Banana Plug connections are also possible Simply insert the Banana Plug connector into the corresponding terminal Connecting to this unit s OUTPUT INPUT terminals INPUT1...

Page 8: ...nnected 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 INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS ON OFF AUTO POWER HIGH CUT STANDBY RED ON GREEN VOLUME 150 Hz 0 10 50 Hz POWER OFF ON INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO ...

Page 9: ... by sensing noise from other appliances If it occurs set the AUTO POWER ON OFF switch to the OFF position This function is available only when the power of this unit is on by setting the POWER switch 4 to on 3 INPUT1 FROM AMPLIFIER terminals Used to connect this unit with the speaker terminals of the amplifier 4 POWER switch Turns the power of this unit ON and OFF whenever pressed When this switch...

Page 10: ...using only the amplifier s volume control For adjusting the VOLUME control and the HIGH CUT control refer to FREQUENCY CHARACTERISTICS on the right hand For effective adjustment of the HIGH CUT control First set this control at about the main speakers rated minimum reproduceable frequency Then turn up the VOLUME control gradually and set it at a level where you can obtain a little more bass effect...

Page 11: ... Hz HIGH CUT 100 Hz HIGH CUT 150 Hz 20 50 100 200 500Hz 40 50 60 70 80 90 dB SW 3 Main speaker s response 20 50 100 200 500Hz 40 50 60 70 80 90 dB SW 3 Main speaker s response FREQUENCY CHARACTERISTICS Adjustment of the VOLUME control and the HIGH CUT control should be changed according to the main speakers listening condition source etc Following figures show the optimum adjustment of each contro...

Page 12: ...gative 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 and these waves are then radiated from the cabinet opening as high amplitude signals The system can therefore by employing the negative imped...

Page 13: ...ork unexpectedly Automatic power ON function will work unexpectedly CAUSE The power plug is not securely connected The VOLUME control is set to 0 Speaker cables are not connected securely Speaker cables are connected incorrectly 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 turned off The level of...

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