Yamaha RX-V640RDS owner manual Connecting the speakers, Speakers, Speaker placement, English

Connecting the speakers

■Speakers

This unit has been designed to provide the best sound- field quality with a 6-speaker system, using main left and right speakers, rear left and right speakers, a center speaker, and a rear center speaker. If you use different brands of speakers (with different tonal qualities) in your system, the tone of a moving human voice and other types of sound may not shift smoothly. We recommend that you use speakers from the same manufacturer or speakers with the same tonal quality.

The main speakers are used for the main source sound plus effect sounds. They will probably be the speakers from your present stereo system. The rear speakers are used for effect and surround sounds. The center speaker is for the center sounds (dialog, vocals, etc.). The rear center speaker supplements the rear (left and right) speakers and provides for more realistic front-to-back transitions.

The main speakers should be high-performance models and have enough power-handling capacity to accept the maximum output of your audio system. The other speakers do not have to be equal to the main speakers. For precise sound localization, however, it is ideal to use the models of equivalent performance with the main speakers.

Use of a subwoofer expands your sound field

It is also possible to further expand your system with the addition of a subwoofer. The use of a subwoofer is effective not only for reinforcing bass frequencies from any or all channels, but also for reproducing the LFE (low-frequency effect) channel with high fidelity when playing back Dolby Digital or DTS signals. The YAMAHA Active Servo Processing Subwoofer System is ideal for natural and lively bass reproduction.

CONNECTIONS

■Speaker placement

Refer to the following diagram when you place the speakers.

Center speaker	Main speaker (R)
	Rear speaker (R)
	Subwoofer
Main	1.8 m (6 feet)
speaker (L)
	Rear center
	speaker
	Rear speaker (L)

Main speakers

Place the main left and right speakers an equal distance from the ideal listening position. The distance between each speaker and each side of the video monitor should also be the same.

Center speaker

Align the front face of the center speaker with the front face of your video monitor. Place the speaker as close to the monitor as possible (such as directly over or under the monitor) and centrally between the main speakers.

Rear speakers

Place these speakers behind your listening position, facing slightly inwards, about 1.8 m (6 feet) above the floor.

Rear center speaker

Place the rear center speaker in the center between the rear left and right speakers at the same height from the floor as the rear speakers.

Subwoofer

The position of the subwoofer is not so critical, because low bass sounds are not highly directional. However, it is better to place the subwoofer near the main speakers. Turn it slightly toward the center of the room to reduce wall reflections.

Note

•If you do not use any of effect speakers (rear, center and/or rear center), change the settings of “SOUND 1 SPEAKER SET” items at the set menu to direct signals to other terminals you have connected speakers to.

CAUTION

Use magnetically shielded speakers. If these speakers still create interference with the monitor, place the speakers away from the monitor.

PREPARATION

English

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