Lexicon

MC-12HD

Surround Sound Preamplifiers

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OVERVIEW

The MC-12 HD is the industry standard for multi-channel processors for film and music reproduction. The culmination of years of research and design, it combines the best elements of performance, flexibility, and elegance. Sophisticated and powerful, it is exceptionally well equipped to control the most elaborate home theaters. Three zones, twelve configurable inputs, HDMI switching, and automatic room calibration enable the MC-12 HD to easily meet the demands of discerning audio and video enthusiasts.

With the myriad features available in the MC-12 HD, the intuitive user interface provides complete adjustability without being confusing. Access to the listening modes, input & output settings, and speaker adjustments are only a few button-pushes away.

The MC-12 HD provides seamless control of multi-room systems with three completely separate zones. Because each zone is independent, it is possible to watch a DVD in the home theater while listening to a CD in the kitchen and recording a program from a satellite receiver to a digital video recorder.

A glance at the MC-12 HD rear panel reveals an impressive array of inputs and outputs. There are multiple analog inputs, including a 5.1-channel connector for DVD-A or SACD sources. High resolution 24-bit/96kHz analog-to-digital converters can be used to bring these signals into the digital domain for processing or, for audio purists, a true analog bypass can be engaged which keeps the signals in the analog domain from input to output.

Digital audio input is available on one AES/EBU, six S/PDIF coaxial, and six S/PDIF optical connectors. In addition, there are six HDMI input connectors, which are also capable of accepting 7.1-channel, 24-bit/96kHz signals on a single connection. These signals are processed at their native sampling rates through a two-stage phase lock loop, achieving remarkably low intrinsic jitter and high jitter rejection. Lexicon's proprietary Auto Azimuth processing corrects timing and level imbalances in stereo signals, resulting in exceptional channel separation in matrix-encoded sources.

The MC-12 HD has an extensive array of audio outputs including 7 main channels, stereo subwoofers, and a dedicated LFE channel. The MC-12 HD Balanced adds XLR connectors for the Main and Zone 2 audio outputs; useful for installations where long cable runs are required or where there is a high risk of interference.

Each output uses two 24-bit/192kHz digital-to-analog converters operating in dual-mono mode. This design provides an improved signal-to-noise ratio and extended dynamic range, resulting in superior sound quality. High-precision digital crossovers and tone controls avoid the signal distortion their analog counterparts often introduce.

For maximum flexibility, each of the main audio outputs has independent crossover, speaker distance, and output level controls. The crossovers can be adjusted in 10Hz increments from 30 to 120Hz. The MC-12 HD is also THX Ultra2-certified and integrates the processing and enhancements of the THX Ultra2 standard.

Automatic calibration of speaker distances and output levels is available using the rear panel microphone inputs and the optional Lexicon microphone kit. The accurate adjustment of these settings ensures signal arrival times and levels are optimal at the listening position.

An optional automatic digital room EQ system provides the ability to smooth low-frequency response and remove acoustic resonances that interfere with not only bass information, but affect frequency response across the entire audible spectrum.

To handle the increasing number of video sources that output high-definition video using HDMI connectors, the MC-12 HD features six HDMI inputs and one output. Complementing its HDMI switcher, the MC-12 HD includes a broadcast-quality analog video switcher with up-conversion to component video. The ultra-wide bandwidth component video switcher accepts analog component video signals, including all HDTV signals, while a composite and S-video switcher accepts high-quality NTSC, PAL, and SECAM video signals. The MC-12 HD has two composite video inputs, three S-video inputs, and four component video inputs.

Enhanced versions of Lexicon's popular Nightclub, Concert Hall, Church, Cathedral, and Panorama listening modes are available, along with an impressive collection of advanced decoders including Dolby Digital EX, Dolby Pro Logic IIx, DTS 96/24, DTS Neo:6, DTS-ES (discrete and matrix), THX Ultra2, THX Surround EX, and the latest version of Lexicon's own critically acclaimed Logic 7. Plus, when paired with a Blu-ray disc player, it is compatible with all surround formats, including DTS-HD Master Audio and Dolby TrueHD.The MC-12 HD is now available with software version 2.0 which fully supports 8 channels of 24 bit, 96kHz high resolution digital audio over HDMI.

The MC-12HD can pass digital video signals of up to 1080p, and multiple digital audio channels (5.1 channels) at sample rates of up to 96kHz through the HDMI interface.

SPECIFICATIONS

Description 5.1 Channel Digital Controller
Digital/Analog Conversion Analog-to-Digital: 24-bit, 96kHz, dual-bit architecture; Digital-to-Analog: 24-bit, 44.1 to 192kHz, multi-bit architecture, operating in dual-mono mode
Analog Audio Inputs Eight stereo pairs (RCA) or five stereo pairs and one 5.1-channel analog input
Digital Audio Inputs Six S/PDIF coaxial (RCA), six S/PDIF optical (including one optical mini jack), one AES/EBU (XLR); coaxial and optical inputs conform to IEC-958, S/PDIF standards
Video Inputs Two composite (RCA), three S-video, and four component video (three RCA, one BNC)
Main Audio Outputs Twelve unbalanced (RCA) and twelve balanced (XLR, MC-12HD Balanced only) connectors for Front L/R, Center, LFE, Subwoofer L/R, Side L/R, Rear L/R, Auxiliary L/R
Main Video Outputs Four composite (RCA, two monitor and two record), four S-video (two monitor and two record), and one component (BNC)
Frequency Response 10Hz to 20kHz, +0.1dB/-0.25dB, -0.75dB at 40kHz, reference 1kHz
Signal-to-Noise Ratio 108dB minimum, 111dB typical, 22kHz bandwidth
Dynamic Range 108dB minimum, 111dB typical, 22kHz bandwidth
Total Harmonic Distortion (THD) Below 0.003% at 1kHz, maximum output level
Input Sensitivity 200mVrms (2Vrms for maximum output level) at 0dB input gain
Maximum Output Level 150mVrms typical, 6Vrms maximum (RCA connectors) 300mVrms typical, 12Vrms maximum (XLR connectors, MC-12HD Balanced only) Maximum value with full-scale input signal and volume at +12dB
Input Impedance 100kOhms in parallel with 150pF
Output Impedance 100Ohms in parallel with 150pF (RCA outputs); 50Ohms in parallel with 150pF (XLR outputs, MC-12 Balanced only)
Power Requirements 90-250 VAC, 50-60Hz, 90W (universal line input), detachable power cord
Height 6.73” (171mm) (~four rack units without feet) [balanced version]
Width 17.3” (440mm) [balanced version]
Depth 14.85” (377mm) [balanced version]
Weight 45lbs (20.5kg) [balanced version]
Included Accessories Optional brackets are available for installation in a standard 19" equipment rack (2 rack units required for MC12HD; 3 rack units required for MC-12HD Balanced.)

REVIEWS

2009 Review by Andrew Robinson, HomeTheaterReview.com

2009 Premium Award – AV Controller, Home Theater Tech (China)

2008 “Gear We Love the Most”, AVRev.com

2007, Outstanding AV Controller Super AV Award, Sound Concepts (China)

2006 Product of the Year, A/V Components, ElectronicHouse.com

2006 High Impact Products, CEpro.com

DOWNLOADS

MC-12HD Brochure
Lexicon V1.60 Configuration Utility
MC-12HD V2.00 Software Upgrade
MC-12HD EQ V2.00 Software Upgrade
MC-12HD V2.00 Release Notes
MC-12HD Serial Protocol Definitions
Comparing MC-12HD and RV-5/MV-5 EQ Calibrations
MC-12HD User Guide
MC-12HD EQ User Guide Addendum
MC-12HD with Crestron DM Technical Bulletin
Lexicon Logic7 White Paper
MC12HD V1.25 Software Upgrade
MC12HDEQ V1.25 Software Upgrade

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