With Pro Logic IIz, some receivers will produce 9.1 channel surround. Dolby. Pro Logic IIz incorporates all of the features and capabilities of Pro Logic IIx.

According to Dolby, "Pro Logic IIz identifies and decodes spatial cues that occur naturally in all content--stereo and 5.1 broadcast, music CDs, DVDs, 5.1 and 7.1 Blu-ray discs, and video games.

Indianapolis — Dolby plans a CEDIA Expo unveiling of its new Pro Logic IIx technology, described as the industry’s first licensed technology to upconvert two-channel audio, matrixed Dolby Surround, ...

The well-known Dolby Pro Logic (DPLI) technology was first introduced in 1987, allowing broadcasters, via 2-channel audio delivery, to deliver surround sound audio to home users. Subsequently, Dolby ...

As most enthusiasts know, Dolby Pro Logic has evolved over the years as a digital logic processor of stereo signals from any source, adding ... I say “more-or-less” because owners of Axiom’s QS8 or ...

These are the words of Roger Dressler, one of Dolby's key development engineers of Dolby Pro Logic II. The later "x" version of DPL II derives 6.1 or 7.1 channels from a stereo source. Both Dolby Pro ...

This was also a period in time when most surround enthusiasts (and the Dolby folks) realized that Dolby Pro Logic was long in the tooth and needed an upgrade. The Citation 7.0 preamp/processor was the ...

According to the company, Dolby Pro Logic II keeps the surround soundfield intact even while tuning between HD Radio stations and during signal fades or periods of blending to analog. The system was ...

Dolby Laboratories has begun the introduction of its Pro Logic IIx technology, which promises 6.1- or 7.1-channel playback for stereo and 5.1-channel movie content through discrete and matrix ...

Earlier today Dolby Laboratories and Factor 5 finally made it official -- GameCube developers will have full access to make their games Dolby Pro Logic II ready and compatible. The two companies ...

New mixer and panner controls have been added to Logic Pro to enables users to access Dolby Atmos-compatible surround channels, and 12 existing Logic plugins (including Space Designer, Limiter, ...