Mark Levinson N40 - Manual (Page 130)

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• NEO:6 Cinema with THX
The same decoding as NEO:6 Cinema, but with the addition of
THX post processing: re-equalization and timbre matching
filters.
• NEO:6 Music
Expands stereo non-matrix recordings into the five- or six-
channel layout in a way which does not diminish the subtlety
and integrity of the original stereo recording.
If you have chosen the THX recommended speaker layout of a 7.1
system where the Surround Back speakers are close together, the
optimal THX playback mode of 5.1 movie and music material over
all speakers is “THX Ultra2 Cinema” mode or “THX MusicMode.”
If, however, it is not possible to place these speakers together and
they have to be far apart, you can also play back a 5.1 source over
all 7.1 speakers in “Surround Plus + THX Cinema” mode. In this
mode, surround information is sent equally to all surround
speakers.
The following surround modes are available for multichannel input
signals:
• Downmix (2ch)
Downmix the multichannel signal to a 2-channel signal for
reproduction on the left and right front speakers.
• Multichannel
Signal passes through with no processing.
• THX Cinema
Engage THX processing for movies.
• Surround Plus
This surround mode is only available if there are one or two
surround back speakers defined. If there is one back speaker,
then it gets a scaled sum of the surround channels (sl or sr). If
there are two back speakers, the left surround back speaker gets
a scaled version of the left surround and the back right speaker
gets a scaled version of the right surround. It is not available for
six channel streams (Dolby-EX or DTS-ES).
• Surround Plus + THX Cinema
Add THX cinema processing to above.
• Surround Matrix
Use DTS NEO:6 matrix processing to create surrounds and back
channels from the surround left and surround right channels. It
requires one or two back speakers.