Meridian America Meridian 518 manual Unpacking, Installing your, General precautions, Connections

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Installation	6

Part 1

Unpacking the 518

On opening the carton, you should have found the following parts:

∙Meridian 518 Digital Audio Processor

∙Power cord

∙This manual

∙500 Series communications lead

If any of these items is missing, please contact your dealer. We suggest that you retain the packing carefully as it provides maximum protection for the unit in transit.

Installing your 518

General precautions

Before carrying out any installation, you should ensure that the 518 is marked with the correct voltage for your local AC supply. Should this not be the case, do not proceed – but contact your dealer.

As a general rule, you should not make any connections to the 518, or to any other component in your system, whilst the AC power supply is con- nected and switched on.

Connections

There are three types of connection that need to be made to the 518:

∙power

∙digital audio

∙communications.

Audio connections need to be made to other components in your system. Communication connections have to be made to most of the other Meridian components in your system in order for them to act as one sys- tem. The connections to your 518 are very important and care should be taken in deciding which connections to make.

Connection details are described following page 29.

Siting

We recommend the following guidelines for location.

∙The 518 should not be placed on top of a power amplifier.

∙Avoid sites where it would be subjected to direct sunlight or where it is near a heat source, e.g. a central heating radiator

∙Avoid sites where the 518 could be subjected to strong magnetic ra- diation, like near a power amplifier.

∙Not too close to a television, or where connecting cables may be sub- ject to, or cause, interference.

Tip In common with all digital products, the 518 emits some radio-fre- quency signals. For this reason, try to keep all power cables and network leads away from audio, antenna and loudspeaker cables. Some time spent laying out the cables carefully will repay you with the best possible performance later.

518 User Guide

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Contents 1992, 1993 Contents Simple rules for using Appendix 4 -Resolution EnhancementAppendix 2 Hints on Mastering Designed & manufactured in the UK by Sales and service in the UKSales and service in the USA AcknowledgementsAbout the 500 Series IntroductionAbout this manual Conventions used in this manualUnpacking Installing yourGeneral precautions ConnectionsPlanning setup Whats inside a 518?Overview as Preamp Type What about analogue sources? What else do I need to know?Overview as Resolution Enhancement Processor Type CD or LaserDisc playback improvementMeridian DSP speaker improvement Meridian Surround improvement Overview as Mastering Processor Type Overview as Multimedia Processor TypeCustomising features ∙ Normal ∙ Standby ∙ Type ∙ ConfigBasic operation Switching onStarting off with StandbySelecting a source Adjusting the volumeOperating 518 as a Control Unit Type OutShape a DitherFlat Shape BDisplay Advanced operation using the Remote Control Muting the sound Operating 518 as Resolution Enhancer TypeVolume control Menu KeysWith the Remote Control Operation summaryMemory Config control settings Restoring default settingsConfig an overview Customising 518, an overviewConfig sources and inputs How to customiseCustomising, general procedure How to change to Type or ConfigMaking changes to an existing setup Customising using TypeHow to change back to Normal Setting Type ControllerConfig Customising using ConfigHow to use Config Selecting TypesSetting the product address for Selecting the controller modeSetting the system address for Setting the Standby mode forSetting the Volume mode for Setting the Blank display option forSetting the Emphasis option for Setting the Volume displaySetting up sources Choosing source logosVol. dB Changing the input for a source Choosing the Comms type for a source productChoosing the address of a source product Digital input connections ConnectionsDigital audio connections Digital output connectionTo connect to other Meridian 500 Series equipment Connecting to Meridian Digital speakersCommunications connections ConPart Mastering ProcessorMeridian 500 Comms warning DescriptionAs a Mastering or Multimedia Processor Type D1 +2Emph +2 ShpB +2Making Recordings Transfer to editor Transfer to the final carrierNoise shaper characteristics Shaper Advantage 44.1kHz 48kHz Normal Pre-emphasisDigital Audio and Quantisation Operating BackgroundTransparency in digital systems DitherNoise Shaping with dither Dynamic RangePre and De-emphasis No change in sample size Simple rules for usingStep-down in sample word size Step up in dynamic rangeSpecification Additional technical informationHelp Cleaning Maintenance & ServicePart Appendix 1 Noise Shapes NoiseAbove noise spectrum for Shape B at 44.1kHz 0Hz 5kHz 10kHz 15kHz 20kHz Appendix 2 Hints on Mastering with noise-shaping Vulnerability of the signalAudible results of digital errors and editing Requirements for D/A conversionAppendix 2 Hints on Mastering Appendix 3 RS232 Handset FunctionsGoTo Functions Appendix 4 -Resolution Enhancement Jitter and de-jitteringDynamic-range FrequencyDynamic-range optimisation with Gain Dynamic-range optimisation with Pre-emphasisShowing CD pre- and de-emphasis curves Dynamic-range optimisation with Noise-shaped Dither DAC enhancement by using high-frequency dither DAC or channel enhancement by word-length matchingContents IndexIndex User Guide User Guide