Owner's Manual

5-18
• Listening mode name differs depending on the encoding
present in the input source, the SURROUND EX parameter
setting and the speaker setup.
– The THX ULTRA2 listening mode is available when THX
Ultra2 decoding is engaged.
– The THX SurEX listening mode is available when THX
Surround EX decoding is engaged.
– The THX listening mode is available when neither THX
Ultra2 nor Surround EX decoding is engaged.
– The THX ULTRA2 and THX SurEX listening modes cannot
be activated unless side and rear speakers are present.
Note:
The MC-4 cannot automatically detect THX
Surround EX encoding in non-flagged 5.1-channel
Dolby Digital sources. A non-flagged source does not
include information in the input signal that identifies
THX Surround EX encoding.
Option/ Default Possible
Parameter Setting Settings
RE-EQUALIZER ON ON, OFF
SURROUND EX AUTO AUTO, ON, OFF
COMPRESSION OFF AUTO, ON, OFF
LFE MIX +0.0dB –10.0dB to +0.0dB
OUTPUT LEVELS — —
CUSTOM — —
See “Listening Mode Menu Option & Parameter Descriptions” on page 5-29 for
detailed descriptions of these options and parameters.
The table below indicates the conditions in which THX
Surround EX and THX Ultra2 decoding are engaged.
• THX Surround EX decoding is engaged when the SURROUND
EX parameter is set to ON or the SURROUND EX parameter is
set to AUTO and a flagged 5.1-channel Dolby Digital source
with THX Surround EX encoding is detected.
• THX Ultra2 decoding is engaged when the SURROUND EX
parameter is set to OFF or the SURROUND EX parameter is
set to AUTO and a non-flagged 5.1-channel Dolby Digital
source with or without THX Surround EX encoding is detect-
ed.
MODE ADJUST
Lexicon
5.1-Channel Surround EX-Encoded
Dolby Digital (Non-Flagged)
5.1-Channel Surround EX-Encoded
Dolby Digital (Flagged)
5.1-Channel
Dolby Digital
5.1 THX ULTRA2 5.1 THX SurEX 5.1 THX ULTRA2
SURROUND EX: AUTO
5.1 THX SurEX 5.1 THX SurEX 5.1 THX SurEX
SURROUND EX: ON
5.1 THX ULTRA2 5.1 THX ULTRA2
5.1 THX ULTRA2
SURROUND EX: OFF
Parameter
Setting
Input
Source