Sony 7.1 Audio Video Receiver

Sony STRDG820 7.1 Audio Video Receiver

· 7.1 Channel Audio/Video Receiver
· 100 Watts X 7 Amplifier Power (8 ohms, 1Khz, 1.0% THD)
· Accepts 1080/60p and 24p video signal via HDMI
· HDMI Active Intelligence: 4 in/1 out(Video and Audio)
· Optimized for Blu-ray Disc and other HD Sources

The STR-DG820 7.1 Ch. A/V Receiver delivers the Full HD 1080 experience to a home theater system. This new 1080p A/V Receiver features HDMI with Active Intelligence¿, plus x.v.Color and 1080/24p signal capability. In addition to decoding uncompressed audio (LPCM via HDMI), the STR-DG820 decodes the latest audio formats from Dolby Labs and DTS making this model fully compatible with Blu-ray Disc. Now, you can hear the original mix of your favorite BD titles regardless of audio format. Need more HDMI inputs? The STR-DG820 features four HDMI inputs that allows for more HD content to be connected. Looking for simplicity? BRAVIA Sync provides a one button operation (via HDMI) of your entire A/V experience with a select number of BRAVIA televisions. Because no room is perfect, Sonys Digital Cinema Auto Calibration (and its supplied microphone) simplifies speaker set up and optimizes speaker performance with the push of one button in just 30 seconds. This full featured A/V Receiver expands its ability to playback music from various audio sources (i.e. iPod, Walkman, PC, etc¿) with the DIGITAL MEDIA PORT and one of the various accessories (sold separately). Would you like to listen to satellite radio? The XM Connect-and-Play Ready feature provides the ability to access XM satellite radio programming in surround sound.

Sony BDVIS1000 5.1Ch Blu-ray Disc/DVD Home Theater System

· 08HDMI IN x 2HDMI OUT (DVD 1080p Up-convert) x 1
· Component, Composite In x 1
· S-Video Out x 1
· 1Digital Audio IN (Opt x 2 /Coax x 1)
· DMPORT x 1

New Integrated single BD/DVD/CD Player - S-Air Wireless Surround included - S-AIR Air Station ready (for multi-room listening) - New audio codec - New HDMI repeater (2in/1out) - 17 Chassis - New BD-Live Ready - New 1080/24p - Digital Media Port interface - Digital Cinema Auto Calibration (micincluded) - DVD Upscale to 1080p resolution

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From Wikipedia

Dolby Digital is the marketing name for a series of lossy audio compression technologies developed by Dolby Laboratories.

Dolby Digital includes several similar technologies, which include Dolby Digital, Dolby Digital EX, Dolby Digital Live, Dolby Digital Surround EX, Dolby Digital Plus, and Dolby TrueHD.

Dolby Digital, or AC-3, is the common version containing up to six discrete channels of sound. The most elaborate mode in common usage involves five channels for normal-range speakers (20 Hz – 20,000 Hz) (right front, center, left front, right rear and left rear) and one channel (20 Hz – 120 Hz allotted audio) for the subwoofer driven low-frequency effects. Mono and stereo modes are also supported. AC-3 supports audio sample-rates up to 48 kHz. Batman Returns was the first film to use Dolby Digital technology when it premiered in theaters in Summer 1992. The Laserdisc version of Clear and Present Danger featured the first Home theater Dolby Digital mix in 1995.

Dolby Digital Surround EX
The Cinema Version of "Dolby Digital EX" is called Dolby Digital Surround Ex and works the same way. Dolby Digital Surround EX was co-developed by Dolby and Lucasfilm THX in time for the release in May 1999 of Star Wars Episode I: The Phantom Menace. It provides an economical and backwards-compatible means for 5.1 soundtracks to carry a sixth, center back surround channel for improved localization of effects. The extra surround channel is matrix encoded onto the discrete Left Surround and Right Surround channels of the 5.1 mix, much like the front center channel on Dolby Surround encoded stereo soundtracks. The result can be played without loss of information on standard 5.1 systems, or played in 6.1 or 7.1 on systems equipped with Surround EX decoding and additional speakers. Dolby Digital Surround EX has since been used for the Star Wars prequels on the DVD versions and also the remastered original Star Wars trilogy. A number of DVDs have Dolby Digital Surround EX audio option.

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