Denon AVR-4802 manual 6THX Surround EX

(6)THX Surround EX

In 1999, a new surround system was launched simultaneously with the release of the movie “Star Wars Episode I”. “Dolby Digital Surround EX” is a new movie sound track that greatly enhances the sense of spatial expression and the positioning of the surround channel sound. The result is 360 degrees of movement and moving sound effects that seem to pass right over the listener's head.

This system was developed jointly by Lucasfilm THX and Dolby Laboratories, fusing Lucasfilm's idea of improving spatial expression and achieving a uniform 360 degree sound positioning with Dolby Laboratories' matrix encoding technology. Emphasis was placed on compatibility with the existing system Dolby Digital 5.1-channel, and the new "surround back (SB) channel" was added to achieve improvements over the conventional 5.1-channel system in terms of the positioning of the sound at the rear, the acoustic image of sound moving from the two sides to the back as well as sound moving from the front to the center rear with the multi surround speaker systems used in movie theaters, thereby enabling various types of surround sound.

The surround back channel signal is a matrix-encoded signal inserted into both the Dolby Digital SL (surround left) and SR (surround right) channels. Upon playback, the signals are decoded by a high precision digital matrix decoder within the Dolby Digital decoder into the SL, SR and SB channels and output as 6.1 channels of signals. With the AVR-4802, the signals further undergo Home THX Cinema processing to achieve a THX Surround EX system.

Even without the proper environment for playing the SB channel, Dolby Digital Surround EX signals are 100% compatible with existing 5.1- channel playback systems, so they can be played as such. In this case, the SB channel signal is produced as a monaural signal from both the SL and SR channels, so none of the signal components are missing. The effects specific to THX Surround EX (the sense of spatial expression and the positioning of the sound), however, are the same as with conventional 5.1-channel surround systems.

©Lucasfilm Ltd. & TM. All Rights Reserved. Surround EX is a jointly developed technology of THX and Dolby Laboratories, and is a trademark of Dolby Laboratories. Used under authorization.

System setup items and default values (set upon shipment from the factory)

System setup

Default settings

Speaker

Input the combination of speakers in your system and their

Front Sp.

Center Sp.

Subwoofer

Surround Sp.

Surround Sp Back.

corresponding sizes (SMALL for regular speakers, LARGE for full-

Configuration

size, full-range) to automatically set the composition of the signals

Small

Small

Yes

Small

Small / 2spkrs

output from the speakers and the frequency response.

Use this function when using multiple surround speaker

Surround

DOLBY/

THX /

WIDE

5CH/7CH

DSP

—

—

combinations for more ideal surround sound. Once the

DTS

EXT. IN

(Surround

mode

THX 5.1

SCREEN

STEREO

SIMULATION

combinations of surround speakers to be used for the

SURROUND

q Speaker

different surround modes are preset, the surround

Setting)

Surround

speakers are selected automatically according to the

A

A

A

A

A

A

—

—

speaker

surround mode.

Crossover

Set the crossover frequency according to the speakers’ bass

FIXED —THX—

Frequency

playback ability.

Subwoofer mode

This selects the subwoofer speaker for playing deep bass signals.

LFE

—THX—

w

SB CH Auto

Set the method of playing the surround back channel for digital

Auto Flag Detect Mode = ON / Non-Flag Source SBch Output = THX Surround EX DTS ES

Flag Detect

signals.

e Delay Time

This parameter is for optimizing the timing with which the audio

Front L & R

Center

Subwoofer

Surround L & R

SBL & SBR

signals are produced from the speakers and subwoofer according to

12 ft (3.6 m)

12 ft (3.6 m)

12 ft (3.6 m)

10 ft (3.0 m)

10 ft (3.0 m)

the listening position.

Multi Zone-1

This sets the output level for the multi-zone 1

Variable

Multi Zone

vol. Level

output jacks.

r

Control

Power AMP

Set this to switch the surround back channel’s

Surround Back

Assignment

power amplifier for use for multi-zone 2.

Channel

This adjusts the volume of the signals output from the speakers and

Front L

Front R

Center

Surround

Surround

Surround

Surround

Subwoofer

t

subwoofer for the different channels in order to obtain optimum

L

R

Back L

Back R

Level

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

effects.

Subwoofer

This parameter is for detecting the maximum level of the low bass

signals output from the subwoofer channel in order to protect the

y Peak Limit

Peak Limitter = OFF

subwoofer from damage and prevent unpleasant distorted sounds

Lev

from being produced.

Input

CD

DVD

VDP

TV

DBS/SAT

VCR-1

VCR-2

VCR-3

TAPE

V. AUX

—

Digital In

This assigns the digital input jacks for the different input

source

u

Assignment

sources.

Digital

COAXIAL

COAXIAL

COAXIAL

OPTICAL

OPTICAL

OPTICAL

OPTICAL

OFF

OPTICAL

OFF

—

Inputs

1

2

3

1

2

3

4

5

On Screen

This sets whether or not to display the on-screen display that

i

appears on the monitor screen when the controls on the remote

On Screen Display = ON

Display

control unit or main unit are operated (from MONITOR 1 outputs

only).

A1 ~ A8

87.5/89.1/98.1/107.9/90.1/90.1/90.1/90.1 MHz

B1 ~B8

520/600/1000/1400/1500/1710 kHz/90.1/90.1 MHz

o

Auto Tuner

FM stations are received automatically and stored in the memory.

C1 ~C8

90.1 MHz

Presets

D1 ~D8

90.1 MHz

E1 ~E8

90.1 MHz

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