Marantz SR-73 - Marantz SR-73 Surround Sound Modes; Dolby Pro Logic Surround Setup and Modes; Hall Surround Mode Description; Matrix Surround Mode Description

USING THE SURROUND MODES
Four surround modes are provided for reproducing sound with a live
atmosphere. Select the surround mode appropriate to the. music/video
source and your listening room conditions.
1. Dolby Pro Logic Surround
The SR-73 features anewly developed high-performance Dolby Pro Logic
decoder chip that separates the two channels of stereo audio from movie
soundtracks, and derives left, centre, right and surround channels, With
the high separation accuracy and pinpoint placement of music, dialogue,
and surround-sound effects created by the Pro Logic system, you will be
provided with an exhilarating home theatre experience. The SR-73 allows
easy set-up and balancing of the Pro Logic system via remote contro! and
the built-in Dolby test-tone generator.
DOLBY PRO LOGIC SURROUND
Speaker positioning
1. Configuring a total system (Fig. 1 connection example)
Although this configuration requires the use of five speakers, it allows you
to experience the full effect of Dolby Pro Logic Surround. Ideally, the 3
front channel speakers should be the same. However, Doiby Pro Logic’s
Normal mode allows you to use a smaller loudspeaker for the centre
channel, directing bass signals to the left and right speakers. In this case,
a speaker with similar characteristics to the left/right speakers should be
used.
Be sure to use a shielded type of speaker for the centre speaker. If the
centre speaker is not anti-magnetic, magnetism from the speaker
may cause colour irregularity in the TV picture.
Itis often difficult to position the speakers in the ideal configuration shown
in the diagram. One of the main features of the Dolby Pro Logic Surround
system, however, is that even if the speakers cannot be arranged in the
ideal configuration, clear centralization of the sound image and a rich
feeling of expansiveness can still be obtained.
Especially with the rear speakers, even if you cannot position them on the
floor like the front speakers, you can still obtain a good surround effect by
mounting them on the wall or ceiling or on top of furniture.
* Set the CENTRE MODE selector to NORMAL or WIDE.
In Normal mode, the low-frequency component is cut from the
dialogue signal so that a small centre speaker can be used.
Wide mode is designed so that when using a centre speaker of the
same grade as the front speakers, the frequency characteristics are
such that the dialogue output is reproduced in a flat, even manner.
(Connection examples)
os} cee =
Left (L) Center (C) Right (R)
Rear speakers
(using a center speaker)
Figure?
2. Hall Surround
In an actual concert hall, the sound that reaches your ears contains not
only the direct sound from the musicians but also a complex combination
of reflected sounds and reverberations, creating a rich hall tone. Select
this mode with sources other than Dolby Surround sources.
3. Matrix Surround
This mode produces a natural spacious sound regardless of the music
source.
4. Simulated Stereo
When playing a mono source, select this mode to produce a simulated
stereo effect.
2. Configuring a minimum system
(Fig. 2 connection example)
Youcan easily set up a system to enjoy Dolby Pro Logic Surround by using
two front speakers and two surround-use rear speakers.
it does not matter whether your TV is stereo or mono, as long as it is
equipped with an external input (video input) jack.
lf different-sized speakers are used, use the larger speakers for the front
channel.
* Set the CENTRE MODE selector to PHANTOM.
In Phantom mode, the dialogue (voice sound) signal normally heard
from the Dolby Pro Logic Surround centre speaker is divided between
the left and right front speakers.
Phantom is provisional mode. In order to enjoy Dolby Pro Logic Surround,
you will need a centre channel speaker.
eS
cS) ey
TV Left (L) Right (R)
(S)
KS fe
Rear speakers
(no center speaker)
Figure 2