Meridian Audio 568 manual Specification and accessories

Page 13

Introduction

Specification and accessories

Specification

 

Analogue outputs

4 x stereo 24-bit Delta-Sigma DAC.

Digital inputs

4 x cable, 75Ω, IEC958 and data

 

8 x unbalanced outputs for centre, sub,

 

rears, mains, and sides or subs.

 

compatible, up to 24 bits.

 

 

 

 

 

1 x optical, Toslink (EIAJ), IEC958 and

 

3 x balanced outputs for mains and

 

 

centre.

 

data compatible, up to 24 bits.

 

 

 

 

Analogue inputs

2 x unbalanced, 20kΩ input

 

Outputs variable between 0 and

 

3.5Vrms, output impedance 47Ω.

 

impedance.

 

 

 

 

 

1 x stereo 24-bit Delta-Sigma ADC.

 

Distortion <0.01%.

 

 

Noise and hum <-95dB CCIR.

 

 

 

Processing

2 x Motorola 56002 running at 66MHz.

Digital outputs

4 x stereo SPDIF on cable, 75Ω, up to

 

 

 

1 x Motorola 56303 running at 72MHz.

 

24-bit precision.

 

1 x Motorola 56007 running at 82MHz.

Video circuit

1 x composite video loop with

 

Internal precision maintained using 24-

 

on-screen display: phono, 75Ω,

 

 

1.5V p-p, PAL/NTSC/SECAM.

 

and 48-bit arithmetic.

 

 

 

 

 

 

 

1 x S-video loop with on-screen

 

 

 

display: Y/C on minidin, 75Ω,

 

 

 

1.5V p-p, PAL/NTSC/SECAM.

 

 

Tape outputs

1 x digital bypass.

6

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Contents Meridian 568 Digital Surround Processor Meridian 568 Digital Surround Processor User Guide Sales and service in the USA Contents Setting up the digital surround processor DSP presetsTroubleshooting 105 Configuring the digital Surround processor Using a computerGlossary115 Preface Introduction 568 Digital Surround Processor Digital Signal ProcessingSeries communications Meridian High Resolution MHRMeridian Compact Theatre Sample configurationsMeridian Digital Theatre Specification Specification and accessoriesMeridian 511 S-patch Box Available accessoriesMeridian 519 Demodulator Rack mount kit Fan kitMulti-channel digital sources DSP presetsDolby Digital Mpeg Surround Multi-channel sources encoded onto two channelsPro Logic TV Logic Conventional stereo sourcesTHX Cinema AmbisonicSpecial DSP presets Using the digital surround processor Front panel Using the digital surround processorMeridian System Remote Quick guide to operating the 568 with the remote Selecting a source To switch on from standbyTo select a source To switch to standby To restore the sound Adjusting the volumeTo change the volume To mute the soundTo change the DSP preset Changing the DSP presetTo change the display Changing the displayUsing the digital surround processor Defining your own presets To lock the menus Locking and unlocking the menusTo unlock the menus Changing the DSP parameters Using a Meridian DSP loudspeakerTo change a DSP parameter Standard parametersOSD Standard parametersTo change the absolute phase Changing treble, bass, or phaseTo change the bass To change the trebleTo move the listening position to the left or right Changing the listening positionAdjust their level until Changing the integration of the centre To change the relative delay of the centre speakerTo change the relative level of the centre speaker Changing the spaciousness of the sound To change the relative delay of the rear or side speakersChanging the lip sync and on-screen display To adjust the lip syncTo change the position of the on-screen display To change the DSP preset for a source Changing the DSP preset for a sourceTo save the preset settings Defining your own presetsSto.ser To clear a user-defined preset DSP presets Pro Logic Logic DSP presetsTHX Cinema Pro Logic and THX Cinema DSP preset parametersTV Logic Mono DSP preset parameters TV Logic DSP preset parametersMono Music Music DSP presetsTrifield Music and Trifield DSP preset parameters Super Stereo AmbisonicMusic Logic DSP preset parameters Ambisonic and Super Stereo DSP preset parametersMusic Logic DTS Music Stereo and Direct DSP preset parametersMpeg Music Stereo and DirectDolby Digital Movie DSP presetsDolby Digital THX, DTS THX, Using dynamic range control Movie DSP preset parametersUsing peak-level limiting Setting up the digital surround processor Radio interference UnpackingPositioning the digital surround processor Safety warningsTo avoid interference To avoid overheatingRear panel Connecting the digital surround processorVideo connections Analogue audio inputs Digital audio inputsCommunications connections Audio outputsOther connections On-screen display Connecting videoTo connect to Meridian DSP loudspeakers Connecting speakersUp the digital surround processor To connect an active subwoofer eg Meridian M1500 or M2500 To connect to an analogue source eg Meridian 504 FM Tuner Connecting sourcesTo connect to a LaserDisc player To connect to a DVD player eg Meridian DVD PlayerTo connect to a 562 or Multimedia Controller To connect to other Meridian 500 Series equipment Connecting to other Meridian equipmentPage Choosing a standard setting To select a Type ConfiguringDTS Mpeg Standard source settingsUsing a Sound Pressure Level meter Using the calibration procedureCalibrating the system To choose the distance units To start the calibration procedureTo move between the calibration tests To exit from the calibration procedureLevels Calibration testsDisplay shows the speaker being DistanceFine tuning Page To turn on Sine/Sub mode Setting up subwoofersTo turn off Sine/Sub mode To adjust the subwoofer crossover frequencyTo change the sweep rate To use the sinewave sweep testTo select the channel To select other test signalsConfiguring the digital surround processor using a computer Presets Meridian Configuration programSetup SourcesTo install the Meridian Configuration program Installing the Meridian Configuration programPlanning the configuration RequirementsTo run the Meridian Configuration To connect the serial cable Creating a new settings file To enter your personal details To display the settingsTo display or edit the settings To specify the speaker layout Setting up speakersMains Surrounds CentreSubwoofers Speaker protection To specify the speaker sizesSubwoofer filtering and type To complete the speaker setupPeak-level limiting To set up sources Setting up sourcesTo configure the source options Configuring the digital surround processor using a computer To set the advanced source options Configuring the digital surround processorTo modify a built-in preset Configuring presetsTo set up presets To create a user-defined preset To restore the DSP parameters to their defaultsTo delete a user-defined preset To change the setup options Changing the setup optionsConfiguring the digital surround processor using a computer To store the settings to the digital surround processor Calibrating the settings with your systemTo save the settings To print a summary of settingsTo calibrate the loudspeakers To fetch the calibrated settingsTo name the User Type Creating a User TypeClick the Copy as new user type button To create additional User TypesTo copy settings between User Types To save the current settings Completing the configurationTo store the settings to the 568 Digital Surround Processor 104 Troubleshooting Standby point not lit General operating problemsRemote not working Erratic or unexpected system behaviourUnit is overheating Hum on analogue input Audio problemsThere is radio interference Crackling on optical inputs Audible hiss at high volume settingsSound not clear There is a hiss when starting DTS LaserDiscsCentre not working Poor picture quality Video problemsPreset options do not appear or are not available Meridian Configuration program problemsService Service and guaranteeGuarantee 114 Glossary Absolute phase Controller Dolby SurroundAC-3 Aspect ratioLayout LFE subLimit Max SPLMono surrounds PresetSource Steered surroundsTHX SurroundTypeIndex 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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