About The Mc-4 - Lexicon MC-4 User Manual

Getting Started

ABOUT THE MC-4

Thank you for purchasing the MC-4 Digital Controller, a 8-channel
audio and video control center. The MC-4 includes 8 configurable
inputs, each of which can be assigned to its 8 digital audio,
8 analog audio, 5 composite video, 5 S-video or 3 component
video input connectors. The analog connectors can be configured
for up to two 5.1-channel sources.
Inside and out, the MC-4 is designed for possible future
developments. The rear panel includes two RS-232 connectors—
one capable of performing configuration downloads and Flash
memory software upgrades and the other capable of supporting
future developments.
More than just an audio and video control center, the MC-4
offers the latest version of Lexicon's critically acclaimed Logic 7®
decoding, which creates a 7.1-channel output signal from stereo,
5.1- and 6.1-channel sources. Unlike other decoders, Logic 7
decoding is compatible with all input sources and requires no
special encoding. Because the improvement it provides is clearly
audible, Logic 7 is widely regarded as the finest available.
In addition to Logic 7, the MC-4 offers Dolby Digital Surround EX™,
Dolby Pro Logic® II, Dolby Pro Logic, DTS® 96/24, DTS Neo:6®,
DTS-ES®, THX Ultra2™ and THX® Surround EX decoding. THX
Ultra2 certification guarantees that the MC-4 meets the highest
THX specifications.
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With four floating-point SHARC™ digital signal processing (DSP)
engines, the MC-4 boasts enormous processing power. These
powerful processors perform custom Lexicon processing such as
Logic 7 decoding, bass enhancement, dialog enhancement, auto
azimuth, 5-speaker enhancement, bass management, high-
precision digital crossovers and audio controls. These features are
available at sample rates up to 96kHz, with 24-bit resolution to
retain top performance from all sources. In addition, a fifth DSP
engine is dedicated to decoding multi-channel compressed audio
sources.
The MC-4 is one of the most advanced audio and video control
centers available. High-precision 24-bit/96kHz A/D (analog-to-
digital) converters can be used to convert stereo analog audio
input signals to digital signals, allowing the MC-4 to provide the
benefits of precise digital signal processing without sacrificing
signal integrity. Alternatively, stereo analog signals can bypass A/D
conversion and internal processing, following a pure signal path
directly to the output connectors.
Digital audio input signals are processed through a two-stage
phase lock loop for extremely low intrinsic jitter and high jitter
rejection. Lexicon's proprietary auto azimuth technology corrects
timing and level imbalances in stereo sources, ensuring
exceptionally accurate playback of surround-encoded sources.
Lexicon