Thank you for selecting this YAMAHA Subwoofer System.

CAUTION: Read this before operating your unit.

English

Please read the following operating precautions before use. YAMAHA will not be held responsible for any damage and/or injury caused by not following the cautions below.

cTo assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference.

cInstall this unit 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 electrical shock, do not expose this unit to rain or water.

cNever open the cabinet. If something drops into the set, contact your dealer.

cThe 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 a fire and/or electric shock.

cTo reduce the risk or fire or electric shock, do not expose this unit to rain or moisture.

cDo not use force on switches, controls or connection wires. When moving the unit, first disconnect the power plug and the wires connected to other equipments. Never pull the wires themselves.

cWhen not planning to use this unit for a long period (ie., vacation, etc.), disconnect the AC power plug from the wall outlet.

cTo prevent lightning damage, disconnect the AC power plug when there is an electric storm.

cSince 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.

<For U.K. and Europe models only>

Be sure to allow spaces of at least 20 cm above, behind and on both sides of the unit.

cDo 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 the unit rises, it may cause fire, damage to the unit and/or personal injury.

cDo not place small metallic objects on this unit. Otherwise, the object may fall, possibly causing an injury.

cDo not place the following objects on this unit: Glass, china, etc.

If glass etc. falls by vibrations and breaks, it may cause personal injury.

A burning candle etc.

If the candle falls by vibrations, it may cause fire and personal injury.

A vessel with water in it

If the vessel falls by vibrations and water spills, it may cause damage to the unit, and/or you may get an electric shock.

cDo not place this unit where foreign objects such as water drips might fall. It might cause a fire, damage to this unit, and/or personal injury.

cNever place a fragile object near the YST port of this unit. If the object falls or drops by the air pressure, it may cause damage to the unit and/or personal injury.

cNever put a hand or a foreign object into the YST port located on the right side of this unit. When moving this unit, do not hold the port as it might cause personal injury and/or damage to this unit.

cThe household breaker might go off unexpectedly when a high level signal is inputted to this unit. In this case, turn down the volume on the amplifier etc. connected to this unit or cut off the power to other unused equipment.

cNever open the cabinet. It might cause an electric shock since this unit uses a high voltage. It might also cause personal injury and/or damage to this unit.

cWhen 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.

cSuper-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.

cThis 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.

cIf 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.

cVibration generated by super-bass frequencies may distort images on a TV. In such a case, move this unit away from the TV set.

cDo not attempt to clean this unit with chemical solvents as this might damage the finish. Use a clean, dry cloth.

cBe sure to read the “TROUBLESHOOTING” section regarding common operating errors before concluding that the unit is faulty.

cSecure placement or installation is the owner’s responsibility.

YAMAHA shall not be liable for any accident caused by improper placement or installation of speakers.

Standby mode

When this unit is turned off by pressing the STANDBY/ON button on the front panel, this unit consumes a small amount of power. This state is called the standby mode. This unit’s power supply is completely cut off from the AC line only when the POWER switch on the rear panel is set in the OFF position or the AC power cord is disconnected.

This unit features a magnetically shielded design, but there is still a chance that placing it too close to a TV set might impair picture color. Should this happen, move this unit away from the TV set.

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