JBL SYNTHESIS SDP-40HD - Manual (Page 138)

Mode Adjust JBL
5-30
5.1mc , 5.1mc UL2Cin, & 5.1mc SurEX (continued)
The 5.1mc THX UL2Cin listening mode
The 5.1mc THX UL2Cin listening mode is available when both side
and rear speakers are present and THX Ultra2 decoding is active. THX
Ultra2 decoding is activated when the SURROUND EX parameter is
set to OFF. When THX Ultra2 decoding is activated:
• Adaptive de-correlation is applied to increase the perceived
width of the listening space. De-correlation of the mono
surround channel increases the perceived width of the surround
field in home theaters.
• ASA processing is applied to signals sent to the rear speakers.
Refer to the ASA parameter description on page 3-37 for more
information.
The 5.1mc THX SurEX listening mode
The 5.1mc THX SurEX listening mode is available when both side
and rear speakers are present and THX surround EX decoding is
active. THX Surround EX decoding is activated when the
SURROUND EX parameter is set to ON.
When THX Surround EX decoding is activated Matrix decoding is
applied to derive three surround channels from 5.1-channel
sources.
The 5.1mc THX listening mode
The 5.1mc THX listening mode is available when neither THX Ultra2
nor THX Surround EX decoding is active.
See page 5-35 for detailed parameter descriptions.
MODE ADJUST OR OR 5.1mc SurEX 5.1mc UL2Cin 5.1mc
Parameter Default Setting Possible Settings
RE-EQUALIZER ON ON, OFF
SURROUND EX OFF ON, OFF
LFE MIX +0.0dB -10.0 to +0.0dB
OUTPUT LEVELS Refer to page 5-33
CUSTOM Refer to page 5-34