Denon AVR-686 Operations Instructions download pdf (Page 51)

Additional Information

[2] When not using surround back speakers

Front speakers

Center speaker

120 °

Surround speakers

[ As seen from above ]

Surround speaker

Frontj speaker 2_

[ As seen from the side ]

• Set the front speakers with their front surfaces as flush with

the TV or moniter screen as possible. Set the center speaker

between the front left and right speakers and no further frem

the listening position than the front speakers.

• Consult the owner's manual for yeur subwoofer for advice en

placing the subweefer within the listening reom.

• If the surround speakers are direct-radiating (monopolar), then

place them slightly behind and at an angle to the listening

positien and parallel te the wails at a position 2 te 3 feet above

ear level at the prime listening position.

The AVR-686 is equipped with a digital signal processing circuit

that lets you play pregram seurces in the surround mode te

achieve the same sense of presence as in a mevie theater.

[1] Dolby Surround

Dolby Digital

Delby Digital is the multi-channel digital signal fermat develeped

by Delby Laborateries.

Dolby Digital censists ef up to "5.1 " channels - frent left, front

right, center, surreund left, surround right, and an additional

channel exclusively reserved for additional deep bass sound

effects (the Lew Frequency Effects -LFE- channel, also called

the ".1" channel, containing bass frequencies of up to 120 Hz).

Unlike the analog Dolby Pre Logic fern]at, Delby Digital's main

channels can all contain full range sound informatien, from the

lowest bass, up to the highest frequencies - 22 kHz. The signals

within each channel are distinct frem the others, allowing

pinpeint sound imaging, and Dolby Digital offers tremendeus

dynamic range from the most powerful sound effects te the

quietest, softest sounds, free frem noise and distortion.

• Dolby Digital and Dolby Pro Logic

No. of recorded

5.1 ch 2 ch

channels (elements)

No. of playback 5.1 ch 4 ch

channels

Playbackchannels L, R,C, S

L, R, C, SL, SR, SW

(max.) (SW- recommended)

Digital discrete Analog matrix

processing Dolby

Audio processing Digital encoding / processing Dolby

Surround

decoding

High frequency

playback limit of 20 kHz 7 kHz

surround channel

Additional Information

• Dolby Digital compatible media and playback

methods

Symbel indicating Delby Digital compatibility: rlrlF_@T1

DIGITAL

The fellowing are general examples. Also refer to the player's

operating instructiens.

I'/|ea _

Coaxial Dolby Digital Set the input mode to

LD (VDP) RFoutput terminal "AUTO"

÷I (_ page 17, 18).

Optical or coaxial

Set the input mode to

DVD digital output "AUTO"

(same as for PCM) (J_=_page 17, 18).

÷2

Others Optical or coaxial Set the input mode to

(satellite broadcasts, digital output "AUTO"

CATV,etc.) (same as for PCM) (_ page 17, 18).

÷1: Please use a commercially available adapter when

connecting the Dolby Digital RF output terminal ef the LD

player to the digital input terminal.

Please refer to the instructien manual of the adapter when

making connection.

Some DVD digital outputs have the function of switching

the Dolby Digital signal eutput method between "bit

stream" and "(convert te) PCM". When playing in Delby

Digital surround on the AVR-686, switch the DVD player's

eutput mode te "bit stream", in some cases players are

equipped with both "bit stream + PCM" and "PCM only"

digital outputs. In this case connect the "bit stream +

PCM" terminals to the AVR-686.

÷2:

Dolby Pro Logic n

• Dolby Pre Logic ]][ is a new multi-channel playback format

develeped by Delby Laboratories using feedback logic steering

technelogy and effering imprevements over cenventional Delby

Pre Legic circuits.

• Dolby Pro Logic ]][ can be used to decode not enly seurces

recorded in Dolby Surround ( '_ ) but alse regular stere<) sources

into five channels (frent left, frent right, center, surround left

and surround right) te achieve surround sound.

I ENGLISH I

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Denon AVR-686 Operations Instructions Page 51

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