Nine speakers may seem like overkill, but Dolby's pro Logic IIz fulfills the promise of surround sound: audio that envelops you from all over, not just the sides.

配置九个扬声器似乎显得小题大做，但杜比的Pro Logic IIz的确实现了环绕声音的产品承诺：让声音从四面八方把人包围，而不是只从某些方位发出。

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Progressive Scan, Dolby Digital, Dolby Pro Logic, and DTS decoding.

逐行扫描，杜比数码，杜比专业逻辑，和DTS解码。

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All models, for instance, feature simple one-cable HDMI connections, compatibility with HDMI 1.3a Repeating and Dolby Pro Logic IIz decoding providing for front height channels.

ENGADGET: Denon outs 2009 line of Blu-ray players, AV receivers and headphones

The TX-NR807 and non-networking TX-SR707, also introduced today, are Onkyo's first receivers to offer Audyssey DSX soundstage extension processing in addition to Dolby Pro Logic IIz height-capabilities.

ENGADGET: Onkyo TX-NR807 and TX-SR707 receivers keep the updates rolling

The YSP-3050 offers full support for surround sound standards, including Dolby Digital, DTS, Dolby Pro Logic II and DTS Neo:6, as well as CINEMA DSP technology, to create realistic soundscapes in any room.

ENGADGET: Yamaha intros YSP-3050 Digital Sound Projector