Lexicon manual Configuring the MC-12 for V4 EQ, About Automatic Calibration

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Version 4 EQ User Guide

Configuring the MC-12 for V4 EQ

ABOUT AUTOMATIC CALIBRATION

When running the V4 EQ software, the MC-12 offers automatic calibration of the listening room’s bass response, loudspeaker distances, and loudspeaker output levels. A successful microphone check is required before automatic calibration procedures can be performed.

The Automatic Calibration Procedures table on the next page describes all automatic calibration procedures.

BEFORE performing automatic calibration:

✓Use the CUSTOM or THX SETUP menu to set crossover points for the loudspeakers connected to the Main Zone audio output connectors. Setting crossover points, after automatic calibra- tion is performed, can invalidate calibrated output levels.

✓Set all associated component (e.g., subwoofers, loudspeakers, and power amplifiers) volume controls to a reasonable level. During automatic calibration, the MC-12 outputs calibration noise signals at fixed volume levels. However, when automatic calibration ends, the MC-12 automatically reverts to the last volume level that was selected before automatic calibration was performed.

✓Eliminate extraneous noises in the listening room, including conversations, air conditioners, and sounds that filter in through open doors and windows.

✓Remove objects, including people, blocking the line-of-sight path between the microphones and the loudspeakers.

DURING automatic calibration:

✓Calibrate the listening room’s bass response BEFORE calibrating loudspeaker output levels. Room correction applied to the loudspeakers as a result of the EQ DISTANCES LEVELS or ROOM EQ procedure can affect loudspeaker output levels, particularly those of the subwoofer and low frequency effect (LFE) subwoofer.

✓The MC-12 outputs calibration noise signals between 55 and 95dB, starting at 55dB and increasing in 5dB increments until the microphones detect the required level. If calibration noise

signals become too loud, press the

arrow button to cancel

automatic calibration.

 

✓Refer to the on-screen display rather than the front panel display. The on-screen display provides additional information and instructions.

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Contents MC-12Controller Version 4 EQ Page Customer Service Introduction Understanding Room Equalization Page Understanding Room Equalization Loudspeaker Sound in a Room Understanding Room EqualizationUnderstanding Room Equalization 1KHz Reflected waves Direct waves 100Hz Room Modes On aSurround Sound Issues Distance setting point for side speakers Understanding Room Equalization Configuring the MC-12 for V4 EQ Page About Automatic Calibration Configuring the MC-12 for V4 EQConfiguring the MC-12 for V4 EQ Connecting the Microphones Positioning the Microphones for the Microphone Check ProperImproper Performing the Microphone Check Once a successful microphone check has been performed Repositioning the Microphones for Automatic Calibration Result Description TroubleshootingProper Rear Left Side Right Front Microphone Proper Improper microphone placement for automatic calibration Improper Room EQ Performing Automatic CalibrationEQ Distances Levels Room EQ Adjusting Room Configuring the MC-12 for V4 EQ Distances or Output Levels Room EQ Adjusting Room CorrectionButton Zone 2 Command Remote Control CommandsCheck Microphones V4 EQ Menu TreesEQ Distances Levels Audio Controls Main Menu Mode Adjust Audio Controls Setup SET Distances
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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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