Meridian Audio 568 manual Introduction

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Introduction

The Meridian 568 Digital Surround Processor combines a completely digital surround-sound processor with a high-performance digital preamplifier in a single integrated unit. It takes advantage of the latest techniques in high- precision analogue electronics and digital signal processing, and the result is an impressively realistic and exciting reproduction of music and cinema sound.

The 568 Digital Surround Processor accepts both analogue and digital sources, and supports all the current two-channel and multi-channel audio formats including PCM, Dolby Digital (AC-3), DTS, and MPEG. It also includes several proprietary processing modes, including the MLP (Meridian Lossless Packing) format.

For instructions on setting up the unit turn to Setting up the digital surround processor, page 49. Once the digital surround processor has been set up refer to Using the digital surround processor, page 13, for information about getting the best results from all your music and film recordings.

Introduction

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Contents Meridian 568 Digital Surround Processor Meridian 568 Digital Surround Processor User Guide Sales and service in the USA Contents DSP presets Setting up the digital surround processorGlossary115 Configuring the digital Surround processor Using a computerTroubleshooting 105 Preface Introduction Digital Signal Processing 568 Digital Surround ProcessorMeridian High Resolution MHR Series communicationsSample configurations Meridian Compact TheatreMeridian Digital Theatre Specification and accessories SpecificationMeridian 519 Demodulator Available accessoriesMeridian 511 S-patch Box Fan kit Rack mount kitDolby Digital DSP presetsMulti-channel digital sources Pro Logic Multi-channel sources encoded onto two channelsMpeg Surround Conventional stereo sources TV LogicTHX Cinema AmbisonicSpecial DSP presets Using the digital surround processor Using the digital surround processor Front panelMeridian System Remote Quick guide to operating the 568 with the remote To select a source To switch on from standbySelecting a source To switch to standby Adjusting the volume To restore the soundTo change the volume To mute the soundChanging the DSP preset To change the DSP presetChanging the display To change the displayUsing the digital surround processor Defining your own presets To unlock the menus Locking and unlocking the menusTo lock the menus Using a Meridian DSP loudspeaker Changing the DSP parametersTo change a DSP parameter Standard parametersStandard parameters OSDChanging treble, bass, or phase To change the absolute phaseTo change the bass To change the trebleChanging the listening position To move the listening position to the left or rightAdjust their level until To change the relative level of the centre speaker To change the relative delay of the centre speakerChanging the integration of the centre To change the relative delay of the rear or side speakers Changing the spaciousness of the soundTo change the position of the on-screen display To adjust the lip syncChanging the lip sync and on-screen display Changing the DSP preset for a source To change the DSP preset for a sourceDefining your own presets To save the preset settingsSto.ser To clear a user-defined preset DSP presets Logic DSP presets Pro LogicTV Logic Pro Logic and THX Cinema DSP preset parametersTHX Cinema Mono TV Logic DSP preset parametersMono DSP preset parameters Trifield Music DSP presetsMusic Music and Trifield DSP preset parameters Ambisonic Super StereoMusic Logic Ambisonic and Super Stereo DSP preset parametersMusic Logic DSP preset parameters Stereo and Direct DSP preset parameters DTS MusicMpeg Music Stereo and DirectDolby Digital THX, DTS THX, Movie DSP presetsDolby Digital Movie DSP preset parameters Using dynamic range controlUsing peak-level limiting Setting up the digital surround processor Unpacking Radio interferenceSafety warnings Positioning the digital surround processorTo avoid interference To avoid overheatingVideo connections Connecting the digital surround processorRear panel Digital audio inputs Analogue audio inputsOther connections Audio outputsCommunications connections Connecting video On-screen displayConnecting speakers To connect to Meridian DSP loudspeakersUp the digital surround processor To connect an active subwoofer eg Meridian M1500 or M2500 Connecting sources To connect to an analogue source eg Meridian 504 FM TunerTo connect to a DVD player eg Meridian DVD Player To connect to a LaserDisc playerTo connect to a 562 or Multimedia Controller Connecting to other Meridian equipment To connect to other Meridian 500 Series equipmentPage Choosing a standard setting Configuring To select a TypeStandard source settings DTS MpegCalibrating the system Using the calibration procedureUsing a Sound Pressure Level meter To start the calibration procedure To choose the distance unitsTo exit from the calibration procedure To move between the calibration testsCalibration tests LevelsDistance Display shows the speaker beingFine tuning Page Setting up subwoofers To turn on Sine/Sub modeTo turn off Sine/Sub mode To adjust the subwoofer crossover frequencyTo use the sinewave sweep test To change the sweep rateTo select other test signals To select the channelConfiguring the digital surround processor using a computer Meridian Configuration program PresetsSetup SourcesInstalling the Meridian Configuration program To install the Meridian Configuration programPlanning the configuration RequirementsTo run the Meridian Configuration To connect the serial cable Creating a new settings file To display the settings To enter your personal detailsTo display or edit the settings Setting up speakers To specify the speaker layoutMains Subwoofers CentreSurrounds To specify the speaker sizes Speaker protectionPeak-level limiting To complete the speaker setupSubwoofer filtering and type To configure the source options Setting up sourcesTo set up sources Configuring the digital surround processor using a computer Configuring the digital surround processor To set the advanced source optionsTo set up presets Configuring presetsTo modify a built-in preset To restore the DSP parameters to their defaults To create a user-defined presetTo delete a user-defined preset Changing the setup options To change the setup optionsConfiguring the digital surround processor using a computer Calibrating the settings with your system To store the settings to the digital surround processorTo save the settings To print a summary of settingsTo fetch the calibrated settings To calibrate the loudspeakersCreating a User Type To name the User TypeTo create additional User Types Click the Copy as new user type buttonTo copy settings between User Types To store the settings to the 568 Digital Surround Processor Completing the configurationTo save the current settings 104 Troubleshooting General operating problems Standby point not litRemote not working Erratic or unexpected system behaviourUnit is overheating There is radio interference Audio problemsHum on analogue input Audible hiss at high volume settings Crackling on optical inputsCentre not working There is a hiss when starting DTS LaserDiscsSound not clear Video problems Poor picture qualityMeridian Configuration program problems Preset options do not appear or are not availableGuarantee Service and guaranteeService 114 Absolute phase Controller Dolby Surround GlossaryAC-3 Aspect ratioLFE sub LayoutLimit Max SPLPreset Mono surroundsSource Steered surroundsSurroundType THXIndex 120 121 MHR Sources 124
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568 specifications

Meridian Audio is renowned for its high-fidelity audio solutions, and three of its standout products, the 861, 561, and 568, showcase the brand's commitment to excellence in sound reproduction and innovative technology.

The Meridian 861 is a flagship digital surround sound controller that offers unrivaled flexibility and control for multi-channel audio systems. Designed to work seamlessly with both music and cinematic audio, the 861 features advanced digital signal processing (DSP) that enables users to customize their listening experience. This model supports various connectivity options, including HDMI and digital audio inputs, ensuring compatibility with a wide range of sources. One of the key characteristics of the 861 is its ability to deliver high-resolution audio formats, making it a superior choice for audiophiles seeking pristine sound quality.

Moving on to the Meridian 561, this versatile preamplifier is designed for those who appreciate the nuances of carefully crafted audio. With its robust construction and superior circuitry, the 561 emphasizes low distortion and high clarity in audio playback. This model offers a range of inputs, including both analog and digital, allowing integration with various audio components. The 561 features Meridian's proprietary technologies that enhance the listener’s experience, such as Room Correction technology that compensates for acoustic anomalies in the listening environment, delivering optimal sound quality in any space.

The Meridian 568 processor holds its ground as a unique digital surround sound processor used in sophisticated home cinema systems. Known for its precision and clarity, the 568 is fully equipped to handle the complexities of modern audio formats, including Dolby Digital and DTS. With multiple output channels, it provides spacious sound staging, and its intelligent processing capabilities ensure that every frequency is rendered accurately. This model is particularly popular among home theater enthusiasts who demand a cinematic experience with uncompromised audio fidelity.

In summary, the Meridian 861, 561, and 568 not only represent technological prowess but also reflect Meridian Audio's dedication to providing exceptional sound experiences. Each model is engineered with unique features designed to meet diverse audio needs, ensuring that music and cinematic presentations are delivered with breathtaking realism and clarity. With these products, Meridian continues to lead the way in high-performance audio technology, setting benchmarks for quality and innovation in the industry.
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