Meridian America Meridian 518 manual Customising 518, an overview, Restoring default settings

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Customising 518: overview

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Customising 518, an overview

518 is a very sophisticated device with a huge number of options to allow you to set up exactly the system you need or to experiment with new possibilities.

Programming 518 is a straightforward process and you should not be timid about experimenting. Although the setup is stored in non-volatile memory called EEPROM, the EPROM (which you cannot change) contains default Type settings and you can return to these at any time.

Restoring default settings

1.Switch off any power amplifiers that are connected to 518.

2.Switch off the 518 using the power switch on the back.

3.While pressing the Source key on the 518 front panel, switch the power on again. The display will read:

Type 1

4.Release the Source key

At this stage you can change the Type from 0 – 2 using the n and s Volume keys.

5.Switch off the 518 using the power switch on the back.

6.After half a second, switch the 518 power on again.

Caution Some power amplifiers are very susceptible to small surges that may result from the process of switching a preamplifier on and off. Some

–like the Meridian 205, 555 or 605 incorporate DC-offset protection that may be triggered by this process. Meridian active or digital loudspeakers are inherently proof against these surges and need not be switched off. In general digital products like power amplifiers, recorders etc. will be unpredictable when they have the digital signal interrupted.

518 has two setup options; Type and Config. These together with Normal and Standby give the 518 four operating states. The following sections give an overview.

Type: an overview

Type just described, restores one of the default settings. No further actions are possible.

Config: an overview

Config mode is used for setting fundamentals of options and control. Consequently in Config the outputs of 518 are muted while you make the necessary choices. The choices available in Config are outlined in the following sections.

Config: control settings

In Config you can make selections that effect the way 518 responds to certain keys. The main choices of this kind are:

∙whether the 518 is to auto-configure, or you will determine the controller in the system.

∙The ‘address’ of the product.

∙whether or not Standby is permitted.1

1Standby is not recommended for 'Pro' or Mastering situations

518 User Guide

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Contents 1992, 1993 Contents Simple rules for using Appendix 4 -Resolution EnhancementAppendix 2 Hints on Mastering Sales and service in the USA Sales and service in the UKDesigned & manufactured in the UK by AcknowledgementsAbout this manual IntroductionAbout the 500 Series Conventions used in this manualGeneral precautions Installing yourUnpacking ConnectionsWhats inside a 518? Planning setupOverview as Preamp Type What else do I need to know? What about analogue sources?Overview as Resolution Enhancement Processor Type CD or LaserDisc playback improvementMeridian DSP speaker improvement Meridian Surround improvement Overview as Multimedia Processor Type Overview as Mastering Processor Type∙ Normal ∙ Standby ∙ Type ∙ Config Customising featuresStarting off with Switching onBasic operation StandbyOperating 518 as a Control Unit Type Adjusting the volumeSelecting a source OutFlat DitherShape a Shape BDisplay Advanced operation using the Remote Control Volume control Operating 518 as Resolution Enhancer TypeMuting the sound Menu KeysWith the Remote Control Operation summaryMemory Config an overview Restoring default settingsConfig control settings Customising 518, an overviewCustomising, general procedure How to customiseConfig sources and inputs How to change to Type or ConfigHow to change back to Normal Customising using TypeMaking changes to an existing setup Setting Type ControllerHow to use Config Customising using ConfigConfig Selecting TypesSetting the system address for Selecting the controller modeSetting the product address for Setting the Standby mode forSetting the Emphasis option for Setting the Blank display option forSetting the Volume mode 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 audio connections ConnectionsDigital input connections Digital output connectionCommunications connections Connecting to Meridian Digital speakersTo connect to other Meridian 500 Series equipment ConMastering Processor PartAs a Mastering or Multimedia Processor Type DescriptionMeridian 500 Comms warning D1 +2ShpB +2 Emph +2Making Recordings Transfer to the final carrier Transfer to editorShaper Advantage 44.1kHz 48kHz Normal Pre-emphasis Noise shaper characteristicsTransparency in digital systems Operating BackgroundDigital Audio and Quantisation DitherNoise Shaping with dither Dynamic RangePre and De-emphasis Step-down in sample word size Simple rules for usingNo change in sample size Step up in dynamic rangeAdditional technical information SpecificationHelp Maintenance & Service CleaningNoise Part Appendix 1 Noise ShapesAbove noise spectrum for Shape B at 44.1kHz 0Hz 5kHz 10kHz 15kHz 20kHz Audible results of digital errors and editing Vulnerability of the signalAppendix 2 Hints on Mastering with noise-shaping Requirements for D/A conversionAppendix 2 Hints on Mastering Appendix 3 RS232 Handset FunctionsGoTo Functions Jitter and de-jittering Appendix 4 -Resolution EnhancementFrequency Dynamic-rangeDynamic-range optimisation with Pre-emphasis Dynamic-range optimisation with GainShowing CD pre- and de-emphasis curves Dynamic-range optimisation with Noise-shaped Dither DAC or channel enhancement by word-length matching DAC enhancement by using high-frequency ditherIndex ContentsIndex User Guide User Guide
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