Mode Adjust

Lexicon

, UL2Cin & SurEX

MODE ADJUST OR UL2Cin OR SurEX

These modes are designed for 7-channel playback of 5.1-channel Dolby Digital film sources that do not have THX Surround EX encoding . They apply 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. THX timbre matching is applied to minimize timbre differences between the front and surround channels, which results in smoother sound movements between them. These modes are recommended for home theaters with THX-certified speakers.

The listening mode name differs depending on the encoding present in the input source, the SURROUND EX parameter setting, and the speaker setup.

The table at the bottom of the page shows the conditions for the behavior of the THX Ultra2 and THX Surround EX modes when activated:

•The THX ULTRA2 listening mode is available when both the side and rear speakers are present and THX Ultra2 decoding is engaged. THX Ultra2 decoding is engaged when the SURROUND EX parameter is set to OFF or AUTO and a

non-flagged 5.1-channel Dolby Digital source with or without THX Surround EX encoding is detected.

•The THX SurEX listening mode is available when both the side and rear speakers are present and THX Surround EX decoding is engaged. THX Surround EX decoding is engaged when the SURROUND EX parameter is set to ON or AUTO and a flagged 5.1-channel Dolby Digital source with THX Surround EX encoding is detected.

•The THX listening mode is available when both Ultra2 and THX Surround EX decoding are deactivated.

Note:

Some EX encoded sources are not flagged, and require manually setting the SURROUND EX parameter to ON for EX decoding.

When THX Ultra2 decoding is active:

•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.

 

 

Input Source

 

 

 

 

 

Parameter Setting

5.1-Channel Dolby Digital

5.1-Channel THX Surround EX

5.1-Channel THX Surround EX

Dolby Digital (Flagged)

Dolby Digital (Non-Flagged)

 

 

SURROUND EX: AUTO

THX ULTRA2

THX SurEX

THX ULTRA2

SURROUND EX: ON

THX SurEX

THX SurEX

THX SurEX

SURROUND EX: OFF

THX ULTRA2

THX ULTRA2

THX ULTRA2

 

 

 

 

5-18

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Lexicon MC-12 manual UL2Cin & SurEX, Input Source Parameter Setting, When THX Ultra2 decoding is active, THX SurEX
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MC-12 specifications

The Lexicon MC-12 is a high-end home theater processor that has garnered admiration for its impressive performance and advanced features. Designed for audiophiles and home theater enthusiasts, the MC-12 combines cutting-edge technologies with user-centric design to create an unparalleled listening experience.

One of the standout features of the MC-12 is its analog bypass mode, which allows pure analog signals to pass through without digital processing. This feature is particularly appealing to users who prefer the warmth and richness of analog sound. The processor also boasts a 24-bit/192 kHz digital-to-analog converter (DAC), ensuring that audio playback is both high-fidelity and precise.

Equipped with a range of surround sound formats, including Dolby Digital, DTS, and THX, the MC-12 provides an immersive audio experience. It supports multiple channels, delivering up to 7.1 surround sound, making it ideal for cinema-style setups. The processor also features Lexicon's proprietary Logic 7 processing, which enhances stereo and discrete surround signals for a more enveloping soundstage.

The MC-12 features customizable room acoustic settings that allow users to tailor the audio output to their specific environment. An integrated automatic calibration system uses sophisticated algorithms to analyze room acoustics and adjust speaker settings accordingly. This optimization ensures that users achieve the best possible sound quality, regardless of their room’s dimensions or layout.

Connectivity is another strong point of the MC-12. It comes with multiple inputs, including HDMI, coaxial, optical, and balanced inputs, allowing users to connect a variety of audio and video sources. Additionally, the processor includes both analog and digital outputs, ensuring compatibility with a multitude of external devices.

The Lexicon MC-12 also features a user-friendly interface, allowing for easy navigation and control. Its ergonomic design includes a sleek front panel and a backlit remote control, enhancing the overall user experience.

In summary, the Lexicon MC-12 stands out as a premium choice for audiophiles seeking exceptional sound quality and advanced features. Its combination of analog and digital processing, multiple surround sound formats, room calibration technology, and extensive connectivity options make it a versatile and powerful home theater processor. Whether for casual listening or serious cinephile pursuits, the MC-12 promises to deliver a captivating audio experience.
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