Lexicon Lexicon MC-12 manual Analog Flagged Analog Non-Flagged, Surround EX on, SurEX, 1a ULTRA2

MC-12

MODE ADJUST

Input Source	5.1-Channel		5.1-Channel		5.1-Channel
			THX Surround EX		THX Surround EX
	Analog
Parameter Setting			Analog (Flagged)		Analog (Non-Flagged)
SURROUND EX: ON	5.1a	SurEX	5.1a	SurEX	5.1a	SurEX

SURROUND EX: OFF

5.1a ULTRA2

5.1a ULTRA2

5.1a ULTRA2

•Designed for playback of 5.1-channel analog film sources.

•Allows 7-channel playback of 5.1-channel analog sources without THX Surround EX encoding.

•Applies THX re-equalization to simulate high-frequency rolloffs that occur in movie theaters. Most films are mixed for movie theaters, and might sound too bright when played back in home theaters without re-equalization.

•Applies THX timbre matching to minimize timbre differences between the front and surround channels, which results in smoother sound movements between them.

•Applies ASA processing to signals sent to the rear speakers. Refer to the ASA parameter description on page 3-31 for more information.

When THX Surround EX decoding is engaged:

•Applies matrix decoding to derive three surround channels from 5.1-channel analog sources.

	Default	Possible
Parameter	Setting	Settings

•Converts 5.1-channel analog input signals into digital audio for internal THX processing.

•Allows 5.1-channel analog sources to use bass management, speaker crossovers, speaker distance calibration, and audio controls (tone controls).

When THX Ultra2 decoding is engaged:

•Applies adaptive de-correlation 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.

RE-EQUALIZER	ON	ON, OFF
SURROUND EX	OFF	ON, OFF
LFE MIX	+0.0dB	-10.0 to +0.0dB
OUTPUT LEVELS	Refer to page 5-32
CUSTOM	Refer to page 5-33

Listening mode menu parameter descriptions begin on page 5-34.

5-29