YST-SW030 - Caisson de basses YAMAHA - Free user manual and instructions

USER MANUAL YST-SW030 YAMAHA

SUBWOOFER SYSTEM ENCEINTE A CAISSON DE GRAVE Precautions: Read this before operating this unit

• To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. • Install 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. • Never open the cabinet. If any foreign objects drop into the set, contact your dealer. • 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 a fire and/or electric shock. • To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. • Do 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. • When not planning to use this unit for a long period (i.e., vacation, etc.), disconnect the AC power plug from the wall outlet. • Since this unit has a built-in power amplifier, heat will radiate from the rear panel. Place the unit apart from the walls, allowing at least 20 cm of space 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. • 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 the unit rises, it may cause fire, damage to the unit and/or personal injury. • Do not place the following objects on this unit: Glass, china, small metallic etc. If glass etc. falls by vibrations and breaks, it may cause bodily injury. A burning candle etc. If the candle falls by vibrations, it may cause fire and bodily injury. A vessel with water in it If the vessel falls by vibrations and water spills, it may cause damage to the speaker, and/or you may get an electric shock. • Do 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. • Never 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. • Never 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.

• Never 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.

• 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. • 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 subwoofer 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. • Do not attempt to clean this unit with chemical solvents as this might damage the finish. Use a clean, dry cloth. • Be sure to read the “TROUBLESHOOTING” section regarding common operating errors before concluding that the unit is faulty. • Install this unit near the wall outlet and where the AC power plug can be reached easily. • Secure placement or installation is the owner’s responsibility. YAMAHA shall not be liable for any accident caused by improper placement or installation of the subwoofer. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. As long as this unit is connected to the AC wall outlet, it is not disconnected from the AC power source even if you turn off this unit by POWER.

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.

If the socket outlets in the home are not suitable for the plug supplied with this appliance, it should be cut off and an appropriate 3 pin plug fitted. For details, refer to the following instructions. Note: The plug severed from the mains lead must be destroyed, as a plug with bared flexible cord is hazardous if engaged in a live socket outlet.

SPECIAL INSTRUCTIONS FOR U.K. MODEL IMPORTANT:

THE WIRES IN MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: Blue: NEUTRAL Brown: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. Making sure that neither core is connected to the earth terminal of the three pin plug.

(For China, Korea, Asia 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.

• This subwoofer system employs Advanced

Yamaha Active Servo Technology II which Yamaha has developed for reproducing higher quality super-bass sound. (Refer to page 5 for details on Advanced Yamaha Active Servo Technology II) This super bass sound adds a more realistic, theater-in-the-home effect to your stereo system.

Please confirm that the following item is included in the package.

• This subwoofer system is equipped with a linear port unique to Yamaha that provides smooth bass response during playback, minimizing extraneous noise not included in the original input signal.

Positioning the subwoofer

It is recommended to place it on the outside of either the right or the left front speaker. (See fig. A .) The placement shown in fig. B is also possible, however, if the subwoofer system is placed directly facing the wall, the bass effect may lessen 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 in fig. A .

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 non-skid pads

Put the provided non-skid pads at the four corners on the bottom of the subwoofer to prevent the subwoofer from moving by vibrations etc.

Caution: Plug the power cables for the subwoofer and other audio/video components into an AC outlet only after you complete all other connections.

Basic connection example

Connect a subwoofer cable to the output jack of your AV amplifier and to the INPUT jack of the subwoofer. Amplifier (The rear panel of various amplifiers may differ in appearance.)

Connecting components and the subwoofer to AC power After you complete a subwoofer connection, plug the amplifier, other audio/video component, and the subwoofer into an AC outlet of appropriate voltage. VOLTAGE SELECTOR (For China, Korea, Asia 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.

Subwoofer rear panel

INPUT INPUT VOLUME POWER ON OFF To AC outlet

Pre-adjusting the subwoofer volume 4

Before you use the subwoofer, first adjust the volume balance between the subwoofer and the front speakers by following the procedure below.

INPUT Subwoofer rear panel

1. Set the VOLUME control to minimum (0).

2. Turn on the power to all other components. 3. Press the POWER switch to the ON position.

INPUT VOLUME VOLUME The power indicator on the rear panel lights up in green.

4. Play a source that contains bass signal. Adjust

the amplifier’s volume control to the desired listening level.

5. Rotate the VOLUME control gradually to adjust the volume balance between the subwoofer and the other speakers. To enjoy natural bass sound, keep the subwoofer volume at a level where it is barely distinguishable from other speakers.

6. Adjust the volume of the entire sound system using the amplifier’s volume control.

Lights up in GREEN when the POWER switch (2) is turned ON; turns off when the POWER switch is turned OFF.

Press this switch to the ON position to turn on the power to the subwoofer. When the power of the subwoofer is on, the power indicator (1) on the rear panel lights up in green. Press this switch again to set it to the OFF position to turn off the power of the subwoofer.

Adjusts the volume level. Turn the control clockwise to increase the volume, and counterclockwise to decrease the volume.

Input terminal for line level signals from the amplifier.

Note: It is recommended to set the

VOLUME control about in the middle position when using in a multi channel home theater system.

VOLUME In 1998, Yamaha brought to the marketplace speaker systems utilizing YST (Yamaha Active Servo

Technology) to give powerful, high quality bass reproduction. This technique uses a direct connection between the amplifier and speaker, allowing accurate signal transmission and precise speaker control.

reflex method. This allows for bass reproduction from much smaller cabinets than was previously possible.

Yamaha’s newly developed Advanced YST II adds many refinements to Yamaha Active Servo Technology, allowing better control of the forces driving the amplifier and speaker. From the amplifier’s point of view, the speaker impedance changes depending on the sound frequency. Yamaha developed a new circuit design combining negative-impedance and constant-current drives, which provides a more stable performance and clear bass reproduction without any murkiness.

As this technology uses speaker units controlled by the negative impedance drive of the amplifier and resonance generated between the speaker cabinet volume and port, it creates more resonant energy

(the “air woofer” concept) than the standard bass

High-amplitude bass sound

Advanced Yamaha Active Servo Technology II Air woofer

(Helmholtz resonator)

Advanced impedance Converter

Processing Amplifier

Signals of low amplitude

Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not listed, or if the instructions fail to help you resolve the problem, disconnect the power cord and contact your authorized Yamaha dealer or service center. Problem

Power is not supplied even though the

POWER switch is set to the ON position.

The power plug is not securely connected.

Turn the power switch OFF, then connect the power plug securely.

The VOLUME control is set to 0.

Turn the VOLUME control to the right (clockwise).

A subwoofer cable is not connected securely.

Connect a subwoofer cable securely.

Sound level is too low.

You are playing a sound source that

Play a sound source that includes includes inadequate bass frequencies. more bass frequencies. The sound level has been diminished by standing waves.

Reposition the subwoofer, or break up the parallel wall surface by placing bookshelves or other large objects along the wall.

The input signal is too small

Type Advanced Yamaha Active Servo Technology II English

Driver 20 cm (8") cone woofer

Magnetically shielded type

100 dB Frequency Response 28 Hz – 200 Hz

Frequency response graph*

* This diagram does not depict actual frequency response characteristics accurately.

Specifications are subject to change without notice.

Advanced Yamaha Active Servo Technology II Fiche technique

Type Advanced Yamaha Active Servo Technology II Advanced Yamaha Active Servo Technology II Luft-Woofer

(Helmholtz-Resonator)

(Helmholtz resonator)

(Helmholtz resonator)

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