Lexicon MC-12 manual Mode Adjust, Surround Dly, Surround Ex, Surround Mix, Note the following

Mode Adjust Lexicon

LISTENING MODE MENU OPTION & PARAMETER DESCRIPTIONS (continued)

SURROUND DLY 0 to 15ms

Increases the perceived depth of the listening space by delaying the arrival time of signals from the side and rear speakers. It is recom- mended that you increase the setting when a greater sense of depth is desired in the listening space. Available in DPLII MUSIC and DPLIIx MUSIC modes.

SURROUND EX AUTO, ON, OFF

Controls the THX Surround EX decoding feature, which can be used to extract a rear channel from 5.1-channel Dolby Digital sources. When ON is selected, THX Surround EX decoding is engaged for all

5.1-channel Dolby Digital sources. When OFF is selected, THX Surround EX decoding is not engaged for all 5.1-channel Dolby Digital sources. Available in THX ULTRA2, THX SurEX, and THX modes.

When AUTO is selected, THX Surround EX decoding is engaged when a flagged 5.1-channel Dolby Digital source with THX Surround EX encoding is detected. THX Surround EX decoding is not engaged when a non-flagged 5.1-channel Dolby Digital source with or without THX Surround EX encoding is detected.

Note:

The MC-12 cannot automatically detect THX Surround EX encoding in non-flagged 5.1-channel Dolby Digital sources. A non-flagged input source does not include information in the input signal that identifies THX Surround EX encoding.

THX Surround EX listening modes are available when Dolby Digital Surround EX decoding is engaged. THX or THX ULTRA2 listening modes are available when THX Surround EX decoding is not engaged. Refer to the 5.1 THX ULTRA2, 5.1 THX SurEX, & 5.1 THX listening mode descriptions that begin on page 5-18,the DTS THX ULTRA2 & DTS-ES THX listening mode descriptions that begin on

page 5-26,or the 5.1a THX ULTRA2, 5.1a THX SurEX, & 5.1a THX listening mode descriptions that begin on page 5-29for more information.

Note the following:

•The SURROUND EX parameter AUTO setting is not available for the 5.1a THX listening modes.

•Toggling the SURROUND EX parameter setting produces low level clicks in the front speakers.

•THX Surround EX decoding cannot be engaged unless both side and rear speakers are present.

•When the Shift command bank is activated, pressing the remote control THX button while a 5.1-channel Dolby Digital source is present activates the 5.1 THX ULTRA2, 5.1 THX SurEX, or 5.1 THX listening mode. Subsequent presses adjust the SURROUND EX parameter, cycling through the AUTO, ON, and OFF settings.

•When the Shift command bank is activated, pressing the remote control THX button while a 5.1-channel analog source is present activates the 5.1a THX ULTRA2, 5.1a THX SurEX, or 5.1a THX listening mode. Subsequent presses toggle the SURROUND EX parameter between the ON and OFF settings.

SURROUND MIX -5 to +5dB

Controls the relative level of surround channel information sent to the audio output connectors labeled Front L/R. It is recommended that you set this parameter to +2dB or +3dB for all input sources. Available in 5.1 2-CHANNEL, DTS (ES) 2-CHAN, and 5.1a 2-CHANNEL modes.

5-44