Denon AVR 4806 - AV Receiver Operations Instructions Page 132
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Additional Information
Surround back speakers
The THX Surround EX format adds new “Surround Back” (SB)
channels to the conventional 5.1-channel system. This makes
it easy to achieve sound positioned directly behind the
listener, something that was previously difficult with sources
designed for conventional multi surround speakers. In
addition, the acoustic image extending between the sides and
the rear is narrowed, thus greatly improving the expression of
the surround signals for sounds moving from the sides to the
back and from the front to the point directly behind the
listening position.
FL C
SW
FR
SR chSL ch
Change of positioning and acoustic image
with 5.1-channel systems
Movement of acoustic image from SR to SL
FL C
SW
FR
SL ch SR ch
SB ch
Change of positioning and acoustic image
with THX Surround EX system
Movement of acoustic image from SR to SB to SL
Speaker(s) for one or two channels are required in order to
achieve a THX Surround EX system with the AVR-4806.
Adding these, however, allows you to achieve stronger
surround effects not only with sources recorded in THX
Surround EX, but also with conventional 2- to 5.1-channel
sources. The WIDE SCREEN mode is a mode for achieving
surround sound with up to 7.1 channels using surround back
speakers, for sources recorded in conventional Dolby
Surround as well as Dolby Digital 5.1-channel and DTS
Surround 5.1-channel sources. Furthermore, all the Denon
original surround modes ( page 60) are compatible with
7.1-channel playback, so you can enjoy 7.1-channel sound
with any signal source.
2 Number of surround back speakers
With THX Surround EX, the surround back channel
consists of one channel of playback signals, but we
recommend using two speakers. When using dipolar
speakers in particular, it is essential to use two speakers.
Using two speakers results in a smoother blend with the
sound of the surround channels and better sound
positioning of the surround back channel when listening
from a position other than the center.
2 Placement of the surround left and right
channels when using surround back speakers
Using surround back speakers greatly improves the
positioning of the sound at the rear. Because of this, the
surround left and right channels play an important role in
achieving a smooth transition of the acoustic image from
the front to the back. As shown on the diagram above, in
a movie theater the surround signals are also produced
from diagonally in front of the listeners, creating an
acoustic image as if the sound were floating in space.
To achieve these effects, we recommend placing the
speakers for the surround left and right channels slightly
more towards the front than with conventional surround
systems. Doing so sometimes increases the surround
effect when playing conventional 5.1-channel sources in
the THX Surround EX mode. Check the surround effects of
the various modes before selecting the surround mode.
- AVR-4806 1
- 2 SAFETY PRECAUTIONS 2
- 2 System Setup Menu 3
- FIGURE A 4
- AS PER NATIONAL 4
- ELECTRICAL CODE 4
- 2 Motion sensor 8
- Part names and functions 9
- Front panel 9
- @0 @1 @2 @3 @5@4 10
- #5#6#7 #4 #3 10
- @9#0#1 @8 @7 @6 10
- Getting Started 12
- Easy Setup and Operation 13
- Easy to setup flow 13
- Auto setup flow 13
- Speaker system layout 14
- Speaker connections 15
- 2 Connections 16
- DVD player 17
- Monitor TV 18
- Auto Setup / Room EQ 19
- SETUP MIC jack on the front 20
- Connecting Other Sources 26
- Connecting Other Souces 27
- DBS / BS Tuner 29
- DVD recorder 31
- CD player 32
- Video deck 32
- CD recorder / 33
- MD recorder 33
- Turntable 33
- (MM cartridge) 33
- Connectiong a tape deck 34
- DENON LINK connections 34
- 2 Copyright Protection System 35
- Connecting IEEE1394 devices 37
- 2 AM loop antenna assembly 38
- Connection of AM antennas 38
- Power amplifier 41
- Basic Operation 42
- Playing the input source 43
- THX CINEMA 43
- ROOM EQ button 43
- PHONES jack 44
- MUTING button 44
- ON SCREEN button 45
- INPUT MODE button 45
- SPEAKER button 45
- DIMMER button 45
- STATUS button 45
- 2 Input mode display 46
- 2 Selecting the analog mode 46
- 2 Input signal display 46
- Surround 48
- DIRECT/STEREOPURE DIRECT 49
- SURROUND PARAMETER button 50
- ENTER or SURROUND PARAMETER 50
- STANDARD 52
- STANDARD button to select the 53
- 2 Surround parameters e 54
- IIx, Dolby 54
- 2 Dialogue Normalization 54
- SURROUND 56
- PARAMETER 56
- 2 Surround parameters t 57
- (USER MODE function) 59
- USER MODE button at 59
- 2 Personal Memory Plus 60
- 2 Surround parameters y 62
- 2 Tone defeat mode 63
- 2 Adjusting the tone 63
- FUNCTION 64
- PTY NEWS 67
- A1 AM 87.50MHz 67
- RDS button until “TP SEARCH” 69
- CHANNEL button 69
- Advanced Operation 70
- MODE SELECTOR button for the 72
- 2 System call buttons 77
- 2 Storing system call signals 77
- MODE SELECTOR 78
- 2 All reset function 79
- FUNCTION ZONE3/REC SELECT 82
- ZONE2 SELECT 82
- MODE SELECTOR buttons 83
- Other function 84
- RECOUT SOURCE 85
- DVD 85
- POWER DIRECT/STEREO 86
- PURE DIRECT 86
- 2 Auto Preset Memory 93
- 2 Preset Skip 94
- 2 Preset Name 94
- Advanced Setup – Part 1 100
- IIx cinema) 102
- ENTER button 106
- Front Bi-Amp connections 107
- Advanced Setup – Part 2 113
- Troubleshooting 129
- Additional Information 131
- Surround back speakers 132
- Speaker setting examples 133
- [1] Dolby Surround 135
- [2] DTS Digital Surround 137
- [6] THX Surround EX 141
- 2 Copyright protection system 143
- Introduction 147
- Specifications 150
- 2 Audio section 150
- 2 Video section 150
- 2 General 151
- TOKYO, JAPAN 154
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