Yamaha DSP-A990 Manuel d'utilisation - Page 9

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Setting Up Your Speaker System

This unit has been designed to provide the best sound field

quality with a full seven-speaker system setup, using two extra pairs

of effect speakers to generate the sound field plus one center

speaker for dialog, when using Dolby Pro Logic Surround decoding.

We therefore recommend that you use a seven-speaker setup. A

four-speaker system using only one pair of effect speakers for the

sound field will still provide impressive ambience and effects,

however, and may be a good way to begin with this unit.You can

always upgrade to the full seven speaker system later. In the 4 or 5

speaker system, the Digital Sound Field Processing is still

performed, but the main speakers are used for both the main

channels and the front effect channels.

Use of the Center Dialog Speaker Is Recommended

With digital sound field programs No. 8 through No. 12, by using

either the Directional Enhancement circuit or the Dolby Pro Logic

decoder, decoded signals will be output from the center channel.

Therefore, if you want to maximize the performance of your

Audio/Video home theater system, it is recommended that you use a

center channel speaker.

If for some reason it is not practical to use a center speaker, it is

possible to enjoy movie viewing without it. Best results, however, are

obtained with the full system.

It is also possible to further expand your system with the addition

of a subwoofer and amplifier.You may wish to choose the

convenience of a Yamaha Active Servo Processing Subwoofer

System, which has its own built-in power amp.