18 ADDITIONAL INFORMATION
Speaker setting examples
Here we describe a number of speaker settings for different purposes. Use these examples as guides to set up your system according to the type of speakers used and the main usage purpose.
(1)Basic setting
Use this setting if your main purpose is to listen to movie music and when using one set (two speakers) of regular
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2Dolby Digital and Dolby Pro Logic
Comparison of home surround systems | Dolby Digital | Dolby Pro Logic | |
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No. recorded channels (elements) | 5.1 ch | 2 ch | |
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No. playback channels | 5.1 ch | 4 ch | |
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Playback channels (max.) | L, R, C, SL, SR, SW | L, R, C, S (SW - recommended) | |
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Audio processing | Digital discrete processing Dolby Digital | Analog matrix processing Dolby Surround | |
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High frequency playback limit of surround |
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Front speakers
Monitor
Center speaker Subwoofer
60°
120°
Surround speakers
As seen from above
•Set the front speakers with their front surfaces as flush with the TV or monitor screen as possible. Set the center speaker between the front left and right speakers and no further from the listening position than the front speakers.
•Consult the owner’s manual for your subwoofer for advice on placing the subwoofer within the listening room.
•If the surround speakers are
Surround speaker
Front speaker 
60 to 90 cm
As seen from the side
channel | 20 kHz | 7 kHz |
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2Dolby Digital compatible media and playback methods
Marks indicating Dolby Digital compatibility: 
and 
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The following are general examples. Also refer to the player’s operating instructions.
Media | Dolby Digital output jacks | Playback method (reference page) | |
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LD (VDP) | Coaxial Dolby Digital RF output jack | Set the input mode to “AUTO”. | |
1 | (Page 16) | ||
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| Optical or coaxial digital output | Set the input mode to “AUTO”. | |
DVD | (same as for PCM) | ||
(Page 16) | |||
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Others | Optical or coaxial digital output | Set the input mode to “AUTO”. |
(2)Using diffusion type speakers for the surround speakers
For the greatest sense of surround sound envelopment, diffuse radiation speakers such as bipolar types, or dipolar types, provide a wider dispersion than is possible to obtain from a direct radiating speaker (monopolar). Place these speakers at either side of the prime listening position, mounted above ear level.
(satellite broadcasts, CATV, etc.) | (same as for PCM) | (Page 16) |
1 Please use a commercially available adapter when connecting the Dolby Digital RF
Path of the surround sound from the speakers to the listening position
•Set the front speakers, center speaker and subwoofer in the same positions as in example (1).
•Set the surround speakers directly at the sides of the listening position and 60 to 90 centimeters (2 to 3 feet) above ear level.
•The signals from the surround channels reflect off the walls as shown on the diagram at the left, creating an enveloping and realistic surround sound presentation.
Surround speaker
Front speaker 
60 to 90 cm
As seen from the side
Please refer to the instruction manual of the adapter when making connection.
2 Some DVD digital outputs have the function of switching the Dolby Digital signal output method between “bit stream” and “(convert to) PCM”. When playing in Dolby Digital surround on the
+ PCM” and “PCM only” digital outputs. In this case connect the “bit stream + PCM” jacks to the AVR- |
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(2) Dolby Pro Logic II |
• Dolby Pro Logic II is a new |
logic steering technology and offering improvements over conventional Dolby Pro Logic circuits. |
• Dolby Pro Logic II can be used to decode not only sources recorded in Dolby Surround ( ) but also |
regular stereo sources into five channels (front left, front right, center, surround left and surround right) to |
achieve surround sound. |
As seen from above
Surround
The
Dolby Surround
(1)Dolby Digital (Dolby Surround
Dolby Digital is the
Dolby Digital consists of up to “5.1” channels - front left, front right, center, surround left, surround right, and an additional channel exclusively reserved for additional deep bass sound effects (the Low Frequency Effects – LFE – channel, also called the “.1” channel, containing bass frequencies of up to 120 Hz).
Unlike the analog Dolby Pro Logic format, Dolby Digital’s main channels can all contain full range sound information, from the lowest bass, up to the highest frequencies – 22 kHz. The signals within each channel are distinct from the others, allowing pinpoint sound imaging, and Dolby Digital offers tremendous dynamic range from the most powerful sound effects to the quietest, softest sounds, free from noise and distortion.
• Whereas with conventional Dolby Pro Logic the surround channel playback frequency band was limited, |
Dolby Pro Logic II offers a wider band range (20 Hz to 20 kHz or greater). In addition, the surround |
channels were monaural (the surround left and right channels were the same) with previous Dolby Pro |
Logic, but Dolby Pro Logic II they are played as stereo signals. |
• Various parameters can be set according to the type of source and the contents, so it is possible to |
achieve optimum decoding (see page 18). |
Sources recorded in Dolby Surround
These are sources in which three or more channels of surround have been recorded as two channels of signals using Dolby Surround encoding technology.
Dolby Surround is used for the sound tracks of movies recorded on DVDs, LDs and video cassettes to be played on stereo VCRs, as well as for the stereo broadcast signals of FM radio, TV, satellite broadcasts and cable TV.
Decoding these signals with Dolby Pro Logic makes it possible to achieve
There are two types of DVD Dolby surround recording signals.
q
When either of these signals is input to the
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