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1

Set the VOLUME control to minimum.

2

Turn on the power supply to all the components.

3

Play any source and adjust the amplifier’s volume control
to the desired listening level.

4

Turn up the VOLUME control gradually to adjust the
volume balance between this unit and the main speakers.

5

Adjust the HIGH CUT control to the position where the
desired response can be obtained.

Notes

Once the volume balance between this unit and the main
speakers is adjusted, you can adjust the volume of your
whole sound system by 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 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
condition, source, etc.
Following figures show the optimum adjustment of each control
and the frequency characteristics when this unit is combined
with a typical speaker system.

This unit’s frequency characteristics

When combined with a 4” or 5” acoustic 
suspension, 2 way system

10

VOLUME

0

10

HIGH CUT

150 Hz

50 Hz

20

50

100

200

500Hz

40

50

60

70

80

90

dB

HIGH CUT 50 Hz

HIGH CUT 100 Hz

HIGH CUT 150 Hz

20

50

100

200

500Hz

40

50

60

70

80

90

dB

SW-2

ADJUSTING VOLUME

POWER

HIGH CUT

VOLUME

150 Hz

0

10

50 Hz

2       5       1, 4

Main 
speaker’s
response

Summary of Contents for SW-2

Page 1: ... System Enceinte pour très basses fréquences de traitement à asservissement actif SW 2 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: ...nd 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 ...

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: ...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 INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS ON OFF AUTO POWER POWER HIGH CUT STANDBY RED ON GREEN VOLUME 150 Hz 0 10 50 Hz To AC outlet This unit Right speaker Left speaker Amplifier INPUT1 INPUT2 FROM AMPLIFIER OUTPUT TO SPEAKERS IN...

Page 7: ...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 Simply insert the Banana Plug connector into the corresponding terminal Connecting to this unit s OUTPUT INPUT terminals INPU...

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

Page 9: ...is 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 Increase the output level on the input sourc...

Page 10: ...p the VOLUME control gradually and set it at a level where you can obtain a little 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...

Page 11: ...l 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 and these waves are then radiated from the cabinet opening as high amplitude signals The system can therefore by employing the negative i...

Page 12: ...allel surface by placing bookshelves etc along the walls 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 SPECIFIC...

Page 13: ...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...

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