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Sherbourn Technologies, Inc.
Owner’s Manual
13
Mde 950 7.1 Chae Pea/Pce
Owner’s Manual
Surround Format Information
The Sherbourn Model PT-7000 employs the latest technology developed in
conjunction with Cirrus Logic
®
, providing one of the most extensive arrays
of surround decoding and processing currently available. You can choose from
Dolby Pro Logic
®
II, Dolby Digital
®
5.1, Dolby Digital EX
®
, DTS
®
, DTS-ES
®
Discrete, DTS-ES
®
Matrix, DTS NEO:6
®
and Cirrus Extra Surround
®
and
Dolby Pro Logic II®. Within each mode, the PT-7000 also offers a wide range of
additional processing options. This means you can precisely match a surround
mode to your program material, loudspeaker setup and personal taste. In addi-
tion, the PT-7000 uses Cirrus Logic’s Triple Crossover® and Precision Bass
Management
®
features to provide maximum exibility when setting up your
audio surround system (see “System Setup ” on page 22 for further details).
The table below lists the surround processing choices available within each
mode. Depending on the selected source (analog or digital) and your loud-
speaker conguration, certain processing options may not appear or operate.
D A
Display
Text Name Description
• •
PLII-C Pro Logic II Cinema
Use for surround enhanced lm
soundtrack playback from any 2-channel
source such as VCR
• •
PLII-M Pro Logic II Music
For surround enhanced playback of
2 channel (stereo) music
• •
DOLBY PL Pro Logic Emulation
Equivalent to original Pro Logic surround
processing with mono surround
• •
PLIIC CR
Pro Logic II Cinema
w/ Cirrus Ex Surr
Adds Cirrus Extra Surround processing
of rear channels to Pro Logic II Cinema
• •
PLIIM CR
Pro Logic II Music
w/Cirrus Ex Surr
Adds Cirrus Extra Surround decoding
of rear channels to Pro Logic II Music
• •
NEO: 6C DTS NEO:6 Cinema
Creates 6.1 channel surround
from any movie-based source
• •
NEO: 6M DTS NEO:6 Music
Creates 6.1 channel surround
from any music-based source
• •
5 STEREO 5 Channel Stereo
Creates a 5-channel program
(L/C/R/LS/RS) from any stereo source
• •
7 STEREO 7 Channel Stereo
Creates a 7-channel program (L/C/R/
LS/RS/LSB/LSR) from any stereo source
•
DOLBY D Dolby Digital
5.1 channel processing for all
Dolby Digital encoded sources
•
DOLBY EX
Dolby Digital
Surround EX
6.1 channel processing for soundtracks
encoded with Dolby EX
•
DD CR-C
Dolby Digital w/
Cirrus Ex Surr Cinema
Adds Cirrus Extra Surround post
processing to Dolby Digital. Creates a
rear surround channel
•
DD CR-M
Dolby Digital w/
Cirrus Ex Surr Music
Adds Cirrus Extra Surround post
processing to Dolby Digital. Creates a
rear surround channel
•
DTS DTS
5.1 channel processing for all
DTS encoded sources
•
DTS-ES
DTS Extended
Surround
6.1 channel processing for all sources
encoded with DTS-ES
Dolby Digital
This digital audio format provides 5.1-channel surround sound. Dolby Digital
source material includes DVDs, LaserDiscs, HDTV broadcasts, some satellite
delivered programming, and the output of some digital cable set top boxes.
Dolby Digital Surround EX
This processing mode is a joint development of Dolby Laboratories and the
THX division of LucasFilm, Ltd. Film soundtracks encoded with Dolby Digital
Surround EX technology contain an extra channel, added to the soundtrack
during mixing, called Surround Back, which places audio behind the listener
in addition to the existing front left, front center, front right, surround left, sur-
round right, and subwoofer channels. This additional channel provides more
detailed imaging behind the listener creating more depth, spacious ambience
and sound localization than before.
A list of movies created using Dolby Digital Surround EX can be found on the
Dolby web site at www.dolby.com
NOTE: Surround EX mode can also be engaged during the playback
of 5.1 channel material that is not Dolby Digital Surround EX or DTS-ES
Matrix or Discrete encoded. When used this way, signals from the left
and right surrounds are used to synthesize the surround back channel.
Results using this method will vary depending on the source material.
Dolby Pro Logic II
Dolby Pro Logic II is a substantial enhancement to the original Pro-Logic
process. In addition to full-bandwidth surrounds, ProLogic II provides three
unique user adjustable processing options: Panorama; Dimension; and Center
Width. Used primarily in Pro Logic II Music mode, these choices are also avail-
able when employing the Cirrus Extra Surround processing option.
Panorama
provides an extension of the front stereo image to the surround
channels creating an enveloping, wraparound effect.
Dimension
enables adjustment of the surround image between the front and
rear of your room. Certain types of music benet from smoother overall balance
and a more natural sounding image.
Center Width
provides variable adjustment of the center channel image and
location, to create a more seamless front soundstage as well as control of the
sense of ‘width’ across the L/C/R loudspeaker array. A phantom center image
can also be created from just the left and right front speakers.
DTS
This compressed digital data format is similar to Dolby Digital, but uses a
higher sampling rate. DTS also provides a maximum of 5.1-channel surround
channels and is available on compact disc, DVD and LaserDiscs. Audio-only
DTS discs may be used with any CD, LD or DVD player with a digital audio
output, but DVD discs with DTS audio must be used on players with the “DTS
Digital Out” logo.
DTS-ES
DTS-ES is an extension of the original DTS format that adds an additional
sixth, or center surround, channel to a soundtrack. DTS-ES Matrix titles provide
the sixth channel by a matrix process, while DTS-ES Discrete media deliver
a true discrete center surround channel. Both DTS-ES formats are backwards
Surround Format Information
12