JBL SYNTHESIS SDP-40HD User 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