Owner`s manual

3-30
Customizing the Nº502 Mark Levinson
with maximum separation. When set to Off, the accuracy of the selected
surround mode varies among sources.
We recommend setting this parameter to On for film and broadcast
sources, and to Off for music sources. The L7 Auto Azimuth parameter
only applies when the Logic 7 surround modes are active.
Surround Back
Processing
The Surround Back Processing parameter determines the type of decoding
used for the surround processing of the audio signal. Two options are
available - Dolby Digital EX decoding or DTS-ES decoding. Each option
can be turned to Off, On, or Auto.
Dolby Digital Decoding
Dolby Digital Surround EX decoding is available when both the Surround
and Surround Back speakers are present and Dolby Digital Surround EX
decoding is active. Matrix decoding is then applied to derive the Surround
Back channels.
When the Surround Back Processing>Dolby Digital EX parameter is set to:
• Off – Dolby Digital Surround EX decoding is NOT activated,
regardless of the input source.
• On – Dolby Digital Surround EX decoding is always activated.
• Auto – Dolby Digital Surround EX decoding is activated for flagged
5.1-channel Dolby Digital Surround EX sources. If the incoming
source is NOT flagged, then the decoding remains Off.
The table below shows the behavior of the Dolby Digital EX decoding
parameter conditions.
DTS Decoding
The DTS-ES setting is designed to decode and play back 5.1-channel DTS,
5.1-channel matrix-encoded DTS-ES, and 6.1-channel discrete-encoded
DTS-ES input sources. This mode is recommended for DTS input sources
recorded with DTS-ES encoding.
DTS-ES decoding is available when both the Surround and Surround Back
speakers are present and DTS-ES decoding is active.
Surround Back
Processing
Parameter Setting
5.1-Channel Dolby Digital Incoming Source
Dolby Digital Surround EX
(Flagged)
Surround EX
(Non-flagged)
Auto
Dolby Digital Dolby Digital Surround EX Dolby Digital
On
Dolby Digital Surround EX Dolby Digital Surround EX Dolby Digital Surround EX
Off
Dolby Digital Dolby Digital Dolby Digital