Lexicon MC-1 owner manual Subwoofer Peak Limiter

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MC-1 Digital Controller

System Configuration

Note that the Volume control is active when utilizing external noise calibration.

a Dolby Digital AC-3 signal is coming in, the MC-1 will load the DOLBY DIGITAL effect with the factory preset settings. If a DTS signal is coming in, the MC-1 will load the DTS FILM effect with the factory preset settings.

Subwoofer Peak Limiter

Note that +00dB=85dB, and +15dB=100dB in a properly calibrated system.

Note that the Sub Peak Limiter is sepa- rate from the Subwoofer level control in the Effect Adjust menus — one setting does not affect the other.

Dolby Digital (AC-3) and DTS encoded sources can produce low frequency peaks that are much louder than those in matrixed Dolby Surround decoding. These higher levels may be troublesome in the home listening environment, either because they disturb non-listeners in nearby rooms, or because of the inability of the subwoofer and its associated amplifier to reproduce these levels without clipping.

 

SUB PEAK LIMITER

 

Adjust with or

LIMITER

ON

 

ON, OFF

LIMITER ADJUST

+15dB

-5dB to +35dB

 

!WARNING!

 

 

 

REDUCE SYSTEM VOLUME

 

 

BEFORE TURNING

 

 

LIMITER OFF

 

 

 

 

 

 

The MC-1 provides a Subwoofer Peak Limiter that prevents the subwoofer signal level from exceeding a preset value. The limit is factory preset to a level of +15dB. This setting can be changed within the limiter’s operating range of -5dB to +35dB, with -5dB providing maximum limiting.

To turn off the limiter or to change its setting, select the SUB PK LIMITER parameter in the Output Levels menu.

If you want to turn the limiter off, first turn the system volume down in order to prevent the subwoofer from overloading.

Press to select LIMITER, then press SELECT. Press to select OFF. Press DONE twice to return to the Output Levels menu. While readjusting the system volume back to a comfortable listening level, check to be sure the subwoofer or its amplifier is not overloading on passages with loud low frequency peaks.

Selecting LIMITER ADJUST in the Sub Peak Limiter menu invokes a calibration routine for setting the optimal peak level for your installation. Pressing SELECT routes low frequency calibration noise to the subwoofer output of the MC-1. A two-line display indicates the LIMITER LEVEL setting in dB on the top line with a bar at the bottom to indicate relative noise level. Press and to adjust the noise level to the highest level that your equipment can reproduce without overload.

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Contents MC-1 Digital Controller Important Safety Instructions Vigtig information om sikkerhed Wichtige Sicherheitsanweisungen Contents Introduction Glossary of Terms Using the DocumentationPage Front Panel InstallationControls and Indicators Triggers Rear PanelRemote Control InstallationConcert Hall Nightclub Press and hold with AC Connections ConnectionLocation Considerations Audio/Video Connections Wiring ConsiderationsAudio/Video Cables Speaker ConnectionsLDD-1 MC-1 ConnectionsExpansion Port Input Connections Video ConnectionsDigital Audio Connections Digital Output AC-3 Ready Laser Disc and LD/DVD PlayersBass and Treble Level Restore Factory DefaultsEqualization Loudness TiltVideo On-Screen Display Display AdjustmentDisplay Adjust Display Adjust MenuDisplay Adjust Menu ON-SCREEN Display Input Gain Analog Inputs Only Input ConfigurationInput Effect FX Assignment Restore Input NameInput Level Meters Input NameDisc FX FormatAutomatic System Configuration DTS Only PCM OnlyAC-3 Only Coax 1-5 and Optical 1-3 Digital Audio Inputs AudioVideo AnalogRecord/Zone 2 Controls Record/ZoneVOL Select and Done remote control onlyDolby, THX, Logic 7, and DTS remote control only CH, Party, TV M, and Music remote control onlyFront L/R Speaker ConfigurationCustom Configuration PGM Trigger AssignmentRears CenterSides Subwoofer Output Setting Output LevelsTHX Configuration Surround EX ConfigurationInternal Noise Test External Noise Test Output Levels MenuLimiter Subwoofer Peak LimiterMute Level Setting Listener PositionPower On Volume Zone 2 Power On VolumeCalibrate Panorama Sync DelayOFF Sync DLY Zone 2 Balance BalanceCustomization Locking SettingsLock Settings Menu Settings Unlocked Custom Name OFF Assign Custom NameCustomizing Effects Using MC-1 EffectsComparing a modified Effect to the factory preset version Main Menu Effect AdjustListening to only the MC-1 Effect Restoring the original parameter values of an EffectNaming your custom Effect Restoring the original Effect nameNightclub PCM Effects and Parameters3Panorama Cathedral PCM Effects and Parameters Concert HallChurch Music Surround PCM Effects and Parameters PartyChannel Logic PCM Effects and Parameters Music LogicTHX Cinema PCM Effects and Parameters TV MatrixPro Logic PCM Effect Parameters PCM Effects and Parameters Mono LogicPCM Effects and Parameters PCM Effects and Parameters PCM Effects and Parameters PCM Effects and Parameters AC-3 Status AC-3 Effects and Parameters4AC-3 Status Display Music AC-3 Effects and Parameters 2-ChannelDolby Digital AC-3 Effects and Parameters LogicAC-3 Effect Parameters AC-3 Effects and ParametersTHX 5.1 Including Surround EX AC-3 Effects and Parameters AC-3 Effects and Parameters DTS Music DTS Effects and Parameters5DTS 2-Channel DTS Film DTS Effects and Parameters DTS LogicDTS Effect Parameters DTS Effects and Parameters DTS THX Including Surround EXDTS Effects and Parameters Troubleshooting TroubleshootingProblem Possible Cause and Solution Restoring Defaults Troubleshooting Routine MaintenanceSpecifications SpecificationsInputs Installation Worksheet