Denon AVC-A1SR

ENGLISH
37
• 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 direct-radiating
(monopolar) then place them slightly behind and at an angle to the listening
position and parallel to the walls at a position 60 to 90 centimeters (2 to 3
feet) above ear level at the prime listening position.
• Connect the surround speakers to the surround speaker A jacks on the AVC-
A1SR and set all settings on the setup menu to “A”. (This is the factory
default setting. For details, see page 9.)
• Set the front speakers slightly wider apart than the setup for watching
movies only and point them toward the listening position in order assure
clear positioning of the sound.
• Set the center speaker in the same positions as in example (1).
• Set surround speakers A for watching movies in the positions described in
example (1) or (2), depending on the types of speakers used.
• Set surround speakers B for playing multi-channel music at the same height
as the front speakers and slightly at an angle to the rear of the listening
position, and point them toward the listening position.
• Connect the surround speakers for watching movies to the surround
speaker A jacks on the AVC-A1SR, the
surround speakers for playing multi-
channel music to the surround speaker B
jacks. Set the surround speaker selection
on the setup menu. (For instructions, see
page 11.)
• To activate the appropriate speakers for
movies and music, we suggest that
during setup, choose Dolby Digital/DTS
with THX and Surround Speakers A (the bipolar or dipolar speakers mounted
at the sides of the listening position).
Choose Dolby Digital/DTS without THX and Surround Speakers B (the direct
radiating speakers mounted at the rear corners of the listening room). Then,
by simply activating the THX function (used during movie playback, the
Surround A speakers are automatically activated. For multi-channel music
listening (Dolby Digital or DTS music programs), turn off the THX
enhancements by touching the THX button on the remote control, and the
Surround B speakers will be automatically activated.
Example: Movie sources (Dolby, DTS surround, etc.)
“THX” or “THX 5.1” mode: Speakers A
Music sources (DVD video, DTS CD, etc.)
“Dolby/DTS surround”: Speakers B
(3) When using different surround speakers for movies and music
To achieve more effective surround sound for both movies and music, use different sets of surround
speakers and different surround modes for the two types of sources.
60 to 90 cm
Front speaker
Surround speakers A
Surround
speakers B
Surround speakers B
140°
45° ~ 60°
Subwoofer
Monitor
Center speaker
Front speakers
As seen from above
As seen from the side
The speakers can be switched at the touch of a button by turning HOME THX CINEMA on when playing
movies and off when playing multi-channel music.
Surround back
speaker
Surround
speakers A
Surround back
speakers (A)
The surround speakers can be switched freely during playback with the surround parameter adjustment. (For
instructions, see page 22.)
2. When not using surround back speakers
Subwoofer
Surround speaker
Front speaker
60 to 90 cm
Surround speakers
120°
Front speakers
45°
Monitor
Center speaker
As seen from above
As seen from the side
Point slightly
downwards
2 Dolby Digital and Dolby Pro Logic
Comparison of home surround
systems
No. recorded channels (elements)
No. playback channels
Playback channels (max.)
Audio processing
High frequency playback limit of
surround channel
Dolby Digital
5.1 ch
5.1 ch
L, R, C, SL, SR, SW
Digital discrete processing Dolby Digital (AC-3)
encoding/decoding
20 kHz
Dolby Pro Logic
2 ch
4 ch
L, R, C, S (SW - recommended)
Analog matrix processing Dolby
Surround
7 kHz
2 Dolby Digital compatible media and playback methods
Marks indicating Dolby Digital compatibility: and .
The following are general examples. Also refer to the player’s operating instructions.
Media
LD (VDP)
1 2 3
DVD
2
Others
(satellite broadcasts, CATV, etc.)
Dolby Digital output jacks
Coaxial Dolby Digital RF output jack
1 2 3
Optical or coaxial digital output
(same as for PCM)
4
Optical or coaxial digital output
(same as for PCM)
Playback method (reference page)
Set the input mode to “AUTO”.
(Page 20)
Set the input mode to “AUTO”.
(Page 20)
Set the input mode to “AUTO”.
(Page 20)
1 When playing in Dolby Digital with a Dolby Digital compatible LD player, connect the LD (VDP) player to
the VDP function.
2 When the LD/DVD compatible player is equipped with Dolby Digital RF outputs, the LD’s Dolby Digital
output is output from the RF jacks and the DVD’s Dolby Digital output is output from the optical or
coaxial digital jacks. Select the input mode according to the type of media being played (LD or DVD).
You may wish to connect the outboard RF demodulator’s digital output to the AVC-A1SR’s VDP input.
3 If the player is switched from the pause or search mode to the play mode when playing an LD in the
“AUTO” mode (see page 20), analog sound may be output momentarily before the sound switches to
Dolby Digital. This is because the Dolby Digital RF signals output from the LD are not output during the
pause and search modes, so during this type the input mode is switched according to the “AUTO”
mode’s signal priority order (see page 20). If this happens, switch to the “RF” (fixed RF input) mode.
No analog sound will be output.
4 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 AVC-
A1SR, switch the DVD player’s output mode to “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”
jacks to the AVC-A1SR.
Surround
The AVC-A1SR is equipped with a digital signal processing circuit that lets you play program sources in the
surround mode to achieve the same sense of presence as in a movie theater.
(1) Dolby Surround
q Dolby Digital (Dolby Surround AC-3)
Dolby Digital is the multi-channel digital signal format developed by Dolby Laboratories.
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.