Lexicon DC-1 owner manual Center Delay, Base and THX versions

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Installation and

Calibration

DC-1 Digital Controller

Once you have entered the distance to the nearest speaker, the DC-1 will automatically calculate the maximum distance it can handle.

After the distance of the nearest speaker is entered, highlight TIME ALIGN- MENT and press SELECT. A display will list all of the speakers, each with a default distance setting equal to your nearest speaker. Use SELECT and MENU ▲ and ▼ to highlight and enter actual distances for each speaker. The DC-1 rounds off distance settings into discrete steps – choose the closest step to the actual distance in these cases. If a speaker distance is further than the DC-1 can accommodate, set it to the maximum allowable distance. (This will vary, depending on your intial entry.)

Note that the Time Alignment parameter replaced the Center Delay

Center Delay

parameter in Base and THX versions of the DC-1, which allowed

(Base and THX versions)

electronic alignment of the center and left and right speakers.

 

The Center Delay parameter compensates for unequal distances be-

 

tween the center speaker and the listening position and the distance from

 

the listening position to the left and right speakers. The delay (relative to

 

the main left and right channels) can be adjusted between -5.0ms and

 

+9.5 ms in 0.5 ms increments. To get the correct setting by ear, listen for

 

a strong improvement in the imaging and stability of the soundstage.

 

Alternatively, you can measure the path length difference, and calculate

 

the correct setting. To do this, measure the distance (in feet) from the

 

tweeter(s) of your main speakers to your primary listening position.

 

Average these two numbers. Measure the path length from the center

 

speaker to your listening position, and subtract this distance from the

 

average path length of the main speakers. Set CENTER DELAY to the

 

same number of milliseconds as the number of feet of path length

 

difference. For example, if the path length of your main speakers is 14',

 

and the path length of your center speaker is 12', set the delay to +2ms.

 

If the path length of the center speaker is 15.5', set the delay to -1.5ms.

 

This adjustment globally affects all modes which use a center channel.

 

Set CENTER DELAY to 2ms.

Set CENTER DELAY to -1.5ms.

 

 

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Contents DC-1 Important Safety Instructions Communications NoticeAcknowledgements Vigtig information om sikkerhed Wichtige Sicherheitsanweisungen DC-1 Contents Contents, contd Introduction Introduction to the DC-1 About Dolby Digital AC-3 encoding Introduction to the DC-1 Unpacking and Inspection Using the Documentation Glossary of Terms DC-1 Block Diagram Controls Indicators Front PanelDisplay Power On/Off Rear PanelZONE2 and Record Menu Remote ControlOFF and on MuteSignment Cleared Remote Control Accy FunctionsLocation Considerations AC Connections ConnectionLength AWG Size Wiring ConsiderationsWire Lengths Audio/Video ConnectionsConnecting DC-1 as a preamp Installation Calibration LD/DVD Players AC-3 Ready Laser DiscRECORD/ZONE 2 Operation Zone 2 Remote Control Zone 2 IR Remote Mode EnabledExclusive Zone 2 Control System Configuration Video Input Selection On-Screen Display Video On-Screen DisplayInput Gain System SetupInput Name Restore Input Name Base Dolby DigitalEffect Non AC-3 Effect Digital Audio Input Assignment Setting the Speaker Configuration Front L/RCenter Subwoofer Output Setting Output Levels Subwoofer Peak Limiter Dolby Digital versionMute Level Power On Volume Zone 2 Volume Time Alignment Dolby Digital version Setting Listener PositionBase and THX versions Center DelayCalibrate Panorama Installation Calibration Settings are Locked Bass and Treble Level Equalization THX and Dolby Digital versionsTilt Dolby Digital version Customizing Effects DC-1 EffectsDC-1 Effects Music Surround Parameters Music Surround THX and Dolby Digital versionsParameter Initial Value Range Pro Logic ParametersTHX Cinema Parameters THX Cinema THX and Dolby Digital versionsLogic 7 Parameters Logic 7 THX and Dolby Digital versionsDC-1Effects TV Matrix Parameters TV MatrixDC-1Effects Mono Logic Parameters Panorama Parameters PanoramaDC-1 Effects Nightclub Parameters NightclubConcert Hall Parameters Concert HallChurch Parameters ChurchCathedral Parameters CathedralMusic Logic Parameters Music LogicDC-1 Effects Party Parameters PartyTwo Channel Two Channel ParametersAC-3 Status Display Dolby Digital version Music Parameters Music Dolby DigitalDolby Digital Parameters Dolby Digital Dolby Digital versionTHX 5.1 Parameters THX Dolby Digital versionLogic 7 Dolby Digital version DC-1Effects 1Two Channel Dolby Digital version Problem TroubleshootingProblem Possible Cause and Solution TroubleshootingRoutine Maintenance Restoring Defaults TroubleshootingSpecifications Listener Position Panorama Speaker Configuration circle selectionOSD Position Display TimeLexicon, Inc Oak Park
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