USING THE SURROUND SOUND
PROCESSOR
This unit incorporates a sophisticated, multi-mode
digital surround sound processing amplifier, which
allows you to expam:J and shape the audio sound field
from both the audio and video sources, for a theater
like experience in the listening/viewing room.
The surround sound processor has
5
processing
modes and an independent DELAY TIME button which
functions in conjunction with five of the surround
modes. There are four modes for stereo sources. One
mode for monaural sources is also included.
*
When using the surround sound processor, be sure
that the CD DIRECT SWITCH is set to OFF.
SURROUND MODES
1 NATURAL SUR.
The original YAMAHA Natural Surround mode is used
to create a surround effect for video signals not
encoded in Dolby Surround. Background and
reverberant sounds are sent solely to the rear
speakers. This mode is especially effective with
programs that have a lot of reverberation. The acoustic
image center is firmly located and centered between
left and right front speakers.
Localization center
-::/
�
0
0
RL
RR
Delay time: from
10
to
30
milliseconds
2 HALL SURROUND
In this mode, the center seems even more deeply
behind the front speaker pair, creating an expansive,
large hall ambience. The apparent listening position is
in the center of the hall rather than in front of the
stage.
Localization center
•
L
R
0
0
::-
-::
-::/
�
�
�
0
0
Delay time: from
10
to
30
milliseconds
3
'" DOLBY SURROUND
Dolby surround effect is encoded on the sound track
of many commercially available video cassettes, video
discs, etc. To play these program sources, use this
mode. When you play program sources encoded with
Dolby surround, Dolby surround mode of this unit
decodes the signal and feeds the sound effect
through your rear speakers.
Localization center
L
R
�
0
Delay time: from
15
to
30
milliseconds
TM
Manufactured under license from Dolby Laboratories
Licensing Corporation. Additionally licensed under one
or more of the following patents: U.S. numbers
3,632,886,3,746,792,
and
3,959,590;
canada numbers
1 ,004,603
and
1 ,037,877.
"Dolby" and the double-D
symbol are trademarks of Dolby Laboratories Licensing
Corporation.
4 SIMULATED STEREO
This mode was designed specifically to enhance mono
source programs. Compared to a strictly mono setting,
the sound image created in this mode is wider and
slightly forward of the speaker pair, lending an
immediacy to the overall sound. It is particularly
effective when used with old mono movies, news
broadcasts and dialogue .
MONO
Localization center
0
Localization center
0�0
�
..::::::
SIMULATED
STEREO
FL
FR
RL
RR
Delay time: from
10
to
30
milliseconds
5 LIVE SURROUND
This mode takes advantage of the delay signal and a
feedback circuit on the rear effect speakers to create
a bright, lingering, and somewhat resonant sound that
characterizes a small concert space.
Localization center
0
0
�-�
""
�
...._
_.-
'
�
.
.
FL
FR
Delay time: from
10
to
30
milliseconds
17
