Yamaha DSP-A2 Owner's Manual - Page 14

PREPARATION Speaker setup Ⅵ 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 a pair of main speakers to output main source sounds, two extra pairs of effect speakers to generate the sound field plus one center speaker for dialog. 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 When playing back a source with Dolby Pro Logic decoded, or playing back a source which contains center-channel signals with Dolby Digital or DTS decoded, dialog, vocals etc. are 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 the movie without it. Best results, however, are obtained with the full system. Use of a subwoofer expands your sound field It is also possible to further expand your system with the addition of a subwoofer and amplifier. The use of a subwoofer is effective not only for reinforcing bass frequencies from any or all channels, but also for reproducing signals at the subwoofer channel with high fidelity during playing back a source with Dolby Digital or DTS decoded. You may wish to choose the convenience of a Yamaha Active Servo Processing Subwoofer System, which has its own built-in power amplifier. Ⅵ Speakers and speaker placement Your full seven-speaker system will require three speaker pairs: the MAIN SPEAKERS (your normal stereo speakers), the FRONT EFFECT SPEAKERS and the REAR SPEAKERS, plus the CENTER SPEAKER. You may also be using a SUBWOOFER. The MAIN SPEAKERS should be high performance models and have enough power handling capacity to accept the maximum output of your audio system. Other speakers do not have to be equal to the MAIN SPEAKERS. For precise sound localization, however, it is ideal to use high performance models that can reproduce sounds in full range for the CENTER SPEAKER, the FRONT EFFECT and REAR SPEAKERS. Place the MAIN SPEAKERS in the ordinary position. Place the FRONT EFFECT SPEAKERS further apart than the MAIN SPEAKERS, on either side of and 0.5-1m behind and above the MAIN SPEAKER pair. Place the REAR SPEAKERS behind your listening position. They should be nearly 1.8m above the floor. Place the CENTER SPEAKER precisely between the two MAIN SPEAKERS. (To avoid interference, keep the speaker above or below the television monitor, or use a magnetically shielded speaker.) If using a SUBWOOFER, such as a Yamaha Active Servo Processing Subwoofer System, the position of the speaker is not so critical because low bass tones are not highly directional. 12 Main speaker Front effect speaker Center speaker Subwoofer Rear speaker