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Meridian 568.2 User Manual

Meridian 568.2 digital surround processor
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Summary of Contents for Meridian 568.2

  • Page 1 Meridian 568.2 Digital Surround Processor...
  • Page 2 Meridian 568.2 Digital Surround Processor User Guide...
  • Page 3 5,043,970; 5,189,703; 5,222,059), Trifield Trifield Productions Ltd. LaserDisc is a trademark of audio within the Meridian System only. Reverse Productions Ltd, and Nimbus Records Ltd. Pioneer Electric Corp. Boothroyd|Stuart Meridian, engineering or circumvention of this protection is...

  • Page 4: Table Of Contents

    Provides step-by-step instructions for Defining your own The 568.2 Digital Surround Processor ..2 operating the digital surround processor, presets Sample configurations ......5 using either the front panel or the Meridian Specification and accessories ....
  • Page 5 ..........56 Standard source settings ....... 70 Calibrating the system ......71 Connecting video ........59 Connecting speakers ......60 Calibration tests ........74 Connecting sources ....... 63 Setting up subwoofers ......78 Connecting to other Meridian equipment ..........66...
  • Page 6 Describes how to configure the digital surround processor using the Meridian Troubleshooting Configuration program. The Meridian Configuration program ..82 Provides suggested solutions to typical Installing the Meridian Configuration problems. program ..........83 Creating a new settings file ....86 General operating problems ....

  • Page 8: Introduction

    The 568.2 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 supports discrete multi-channel sources, allowing direct connection to DVD-Audio players such as the Meridian 598.

  • Page 9: The 568.2 Digital Surround Processor

    The 568.2 can use this information to select a suitable The MHR Smart Link transfers six encrypted digital audio DSP preset, such as Trifield for two-channel music or PLII Movie channels directly from the 598 to the 568.2, together with...
  • Page 10 Link. Subwoofer configuration The 568.2 standard Types set the DVD source as the enhanced source and assigns presets as shown in the following table: The intelligent stream content information provided by the MHR Smart Link also allows the 568.2 to choose an appropriate...
  • Page 11 Meridian-only system for playback only. 500 Series communications The 568.2 Digital Surround Processor is part of the Meridian 500 Series of advanced digital, analogue, and video components, and these incorporate a sophisticated communications link, to...

  • Page 12: Sample Configurations

    M33 rear M1500 568.2 The Meridian 568.2 Digital Surround Processor is ideal for use The 568.2 Digital Surround Processor can connect directly to up with the M33 Active Analogue Loudspeaker and M1500 Active to eight Meridian active loudspeakers, allowing you to create a Subwoofer.
  • Page 13 The Meridian DSP6000 Digital Loudspeakers, and a DSP5000C Meridian 598 DVD Player is an ideal source for use with the Digital Centre Loudspeaker, to provide audiophile-quality sound. 568.2. It allows you to play DVD-Audio, DVD-Video, and audio A further two or four DSP33 Active Digital Loudspeakers can be CDs, and connects six discrete channels to the 568.2 using...

  • Page 14: Specification And Accessories

    1 x stereo 24-bit Delta-Sigma ADC. 1.5V p-p, PAL/NTSC/SECAM. Optional input 1 x MHR Smart Link connection; see Control 2 x Meridian Comms. MHR Smart Link, page 2. 9-pin D connector for RS232 PC setup Analogue outputs 4 x stereo 24-bit Delta-Sigma DAC.

  • Page 15: Available Accessories

    Weight 5kg (10lb). Meridian 519 Demodulator, which converts the LaserDisc RF output to a bitstream which can be fed to the 568.2. The Meridian Audio reserves the right to amend product 519 Demodulator automatically senses the presence of a Dolby specifications at any time.

  • Page 16: Dsp Presets

    Three alternatives are currently in use: Dolby Digital, DTS, recall it for use at a later date. and MPEG Surround. However, the 568.2 has been designed so that it can be upgraded by downloading a software update, to This section gives information about each of the built-in DSP cater for new formats as they are introduced.
  • Page 17 Dolby Surround. Although the channel separation cannot be as THX versions of Dolby Digital, MPEG Surround, and DTS are good as with the digital multi-channel formats, the 568.2 provided to give a better match between the original soundtrack produces excellent results with these formats.
  • Page 18 Ambisonics UHJ Surround. It re-creates 5.1 channel movie surround from the two-channel source, using improved decoding techniques that Ambisonics UHJ decodes material specifically encoded for preserve the directness of the sound field, resulting in enhanced surround sound reproduction, using a two-channel stereo- image stability compared with standard Pro Logic decoding.
  • Page 19 Special DSP presets Music Music uses a special technique developed by Meridian to divide The digital surround processor also includes the following the sound between the left, right, and centre speakers and give special DSP presets, for specific applications: a wide, spacious sound. We recommend this option for large- scale music, such as orchestral and choral music.

  • Page 20: Provides Step-By-Step Instructions For

    It also provides step-by-step instructions for operating the digital surround processor, using either the front panel or the Meridian System Remote.

  • Page 21: Front Panel

    2 Store Changes the DSP preset Display assigned to a source. 3 Preset Changes the preset. 4 Mute BOOTHROYD STUART Digital 568.2 Source Store Preset Mute Display 5 Display Digital Surround Processor Changes the information displayed on the front panel.

  • Page 22: Meridian System Remote

    Menu Clear Volume Top Menu/# Setup For controlling a DVD Player. Function Top Menu Display Mute Menu keys Band For customising the 568.2. Preset Changes the DSP preset. Display Changes the front panel display. 10 Volume keys/Mute Change the volume.

  • Page 23: Quick Guide To Operating The 568.2 With The Remote

    Quick guide to operating the 568.2 with the remote Action 568.2 as controller DSP speaker as controller Source selection CD, RADIO etc. CD, RADIO etc. Go to standby Volume A V Volume A V Volume Mute Mute Mute Change display...

  • Page 24: Selecting A Source

    DVD. For example: If the digital surround processor is part of a Meridian system it The digital surround processor mutes the sound while you will automatically switch on any other unit in the system, such as change source.
  • Page 25 To switch to standby Press Off on the front panel or the remote. The display will show: If you have other Meridian 500 Series equipment or Meridian DSP loudspeakers connected to the digital surround processor these units will also switch to standby.

  • Page 26: Adjusting The Volume

    Adjusting the volume To mute the sound The digital surround processor adjusts the volume in precise steps of 1dB, where 9dB is equivalent to doubling the loudness. The current volume setting is displayed in dB on the front panel Press Mute. display, and can be varied in the range 1 to 99dB.

  • Page 27: Changing The Dsp Preset

    Changing the DSP preset Each source has a set of DSP presets associated with it, one for The display shows the current preset; Music each of the alternative audio formats: two-channel (PCM), Dolby for example: Digital, DTS, MPEG, and discrete Multi-channel. You will be able to choose any of the predefined DSP presets, or When you choose a source an appropriate DSP preset is any user-defined presets you have stored.
  • Page 28 Audio format Presets DTS, DTS THX, DTS Music (DTS Mus) MPEG MPEG, MPEG THX, MPEG Music (MPEG Mus) In each case these will be followed by any user-defined presets you have stored for the appropriate audio format.

  • Page 29: Changing The Display

    Changing the display The digital surround processor displays information about the The audio stream display option shows the following three current settings on the 12-character front panel display. In pieces of information about the audio stream: addition, it can display the same information superimposed on a video image.

  • Page 30: Defining Your Own

    Defining your own presets n addition to being able to change the source, volume, and DSP preset, the digital surround processor provides a sophisticated range of more advanced adjustments for each DSP preset, to allow you to change the characteristics of the sound to the settings you want. This chapter explains how to change these advanced parameters, and how to store them permanently so they are available whenever you want to use them.

  • Page 31: Locking And Unlocking The Menus

    To display or change the DSP presets, or to define your own presets, you first need to unlock the digital surround processor menus. To lock the menus Press Off to put the 568.2 in standby. The display shows: Press and hold down Preset for a Locked...

  • Page 32: Changing The Dsp Parameters

    101. The menu keys on the remote will then Individual DSP presets provide additional parameters, to allow operate the DVD player menus, and you can change 568.2 DSP you to adjust specific features provided by that preset. For full parameters using Function >, Function <, Function A, and...

  • Page 33: Standard Parameters

    Standard parameters Parameter Range Default What it changes Treble * † -10dB to +10dB +0dB The slope of the frequency response. Bass * † -5dB to +5dB +0dB The bass response. Phase * † + or - The phase of all loudspeakers. Balance <10 to 10>...

  • Page 34: Changing Treble, Bass, Or Phase

    If you have a Meridian DSP loudspeaker the bass and treble room by 5dB in 0.5dB steps. Normally settings between +3.0 controls appear on the 568.2 but adjustment is performed in the and -2.0 will give the most natural results.

  • Page 35: Changing The Listening Position

    The 568.2 Digital Surround Processor provides a more sophisticated Press > or < (remote) until the display shows the current adjustment which corresponds to moving the listening position to the left or right.
  • Page 36 To change the relative level of the rear or side loudspeakers Press > or < (remote) until the display shows the speaker(s) you want to adjust. Rear For example: Press A or V (remote) to change the relative level of the speakers, in dB.

  • Page 37: Changing The Integration Of The Centre

    Changing the integration of the centre To change the relative delay of the If you have a centre loudspeaker you can adjust its relative centre speaker loudness, to provide the best integration of the centre with the main left and right speakers. Press >...

  • Page 38: Changing The Spaciousness Of The Sound

    Changing the spaciousness of the sound You can adjust the spaciousness of the sound by altering the If you have side speakers an additional S Delay option allows delay on the rear and side channels. you to adjust the delay on the side speakers between 15ms and 30ms.

  • Page 39: Changing The Lip Sync And On-Screen Display

    Changing the lip sync and on-screen display To adjust the lip sync To change the position of the on-screen display The LipSync parameter is a unique feature of the digital surround processor which allows you to adjust the delay For each DSP preset you can specify the position of the between the sound and the video image by up to one video on-screen display (OSD), or blank the on-screen display frame.

  • Page 40: Changing The Dsp Preset For A Source

    Changing the DSP preset for a source Each source has an appropriate DSP preset associated with it Press Preset (front panel or remote) to select the DSP preset for each music format. For example, for a standard stereo (PCM) you want to associate with the source. signal the CD source uses Trifield and the TV source uses TV Logic.

  • Page 41: Defining Your Own Presets

    Defining your own presets The 568.2 Digital Surround Processor allows you to modify one Change the preset parameters to the values you want to of the built-in presets, and save it for future use. store; see To change a DSP parameter, page 25.
  • Page 42 The settings have been stored in the new or existing preset you Each press steps through the sequence A to Z, a to z, 0 to 9, full selected. stop, and blank. You can also select a blank directly by pressing Mute (front panel) or Clear (remote).
  • Page 43 To clear a user-defined preset Make sure the menus are unlocked; see To unlock the menus, page 24. Press Preset (front panel or remote) to select the DSP preset you want to clear. User 2 For example: Press and hold down Clear (remote) for several seconds. Preset Clear The display shows: If you clear a preset that was saved over a built-in preset, the...

  • Page 44: Dsp Presets

    The DSP presets are divided into three categories: Logic, Music, and 5.1 Movie. You can set up the 568.2 Digital Surround Processor to use a different subwoofer configuration for each category of DSP preset. In addition, with the multi-channel input card, one source can automatically select one of four DSP presets based on the audio content, together with the appropriate subwoofer configuration.

  • Page 45: Logic Dsp Presets

    Pro Logic decoding. PLII Movie and PLII THX use the new Dolby Pro Logic II DSP Meridian’s implementation of Pro Logic II was the first in the processing mode, and are the recommended choices for Dolby world to receive Dolby approval, and uses proprietary code Surround encoded material.
  • Page 46 Pro Logic The time synchronisation between loudspeakers is adjusted to compensate for the fact that the speakers in a home system tend to be a lot closer to the listener than in a movie theatre. Dolby Surround is an encoding system based on a phase- amplitude matrix whose output can be decoded by a very THX can also be used with Pro Logic, or the 5.1 Movie DSP simple passive matrix.
  • Page 47 THX Cinema TV Logic The THX Cinema preset provides Pro Logic decoding, followed TV Logic is a logic preset, with user-adjustable steering, that can by the THX refinements, as for PLII THX; see PLII THX, page 38. give higher intelligibility and a more appropriate spatial presentation for studio-based TV material.
  • Page 48 Mono Mono DSP preset parameters In the Mono DSP preset you can choose to listen to: Parameter Options What it changes Input Auto L+R, The channel selected. Only one of two input channels, for use when different Input L, Input R, languages or material are carried on each channel.

  • Page 49: Music Dsp Presets

    Dolby Surround encoded. An advantage over the Music DSP preset is that the front stereo The mono element is equalised using a proprietary Meridian image is more focused, and the width of the image can be technique to match the tone colour of the centre speaker, and to adjusted.
  • Page 50 Music and Trifield DSP preset Ambisonics parameters The Ambisonics DSP preset is designed for replaying material Parameter Options What it changes encoded in UHJ format, the two-channel stereo-compatible encoding found on Ambisonically recorded discs and HS Out? * Y or N High-rate audio.
  • Page 51 Ambisonics and Super Stereo DSP recording space whether you are at the exact central seat or well preset parameters off to one side. Of all the signal-processing options, Ambisonics is the one that Parameter Options What it changes requires the greatest attention to speaker choice and Width * 0 to 1 The width of the image.
  • Page 52 Music Logic DSP preset parameters PLII Music preset parameters Parameter Options What it changes Parameter Options What it changes Roll Off, Low, The degree of left-right Steered All Steered Rear, Which of the four surround Med, High steering. Steered Side, channels are generated by All Steered steering.

  • Page 53: Dts Music

    DTS Music Stereo and Direct DSP preset parameters DTS Music is a special version of the DTS preset designed with a lower LFE level of -10dB to match the bass levels applied to Parameter Options What it changes DTS music CDs. HS Out? * Y or N High-rate audio.

  • Page 54: 5.1 Movie Dsp Presets

    DVD or LaserDisc to accompany a movie. CDs, DVDs, and LaserDiscs are currently available which provide a Both THX Surround EX and Meridian EZ can be used with THX DTS signal in place of the normal digital audio.
  • Page 55 Using dynamic range control THX Surround EX and Meridian EZ can also be used with non- encoded material, and often give a good effect depending on the soundtrack. Because Dolby Digital is a digital format it allows dynamic range control without the distortion involved in analogue methods. The 5.1 Movie DSP preset parameters...
  • Page 56 Compression parameter to Mix. added to the main loudspeakers. For loudspeaker layouts using Meridian DSP loudspeakers as the main left and right, or centre The Dialog Normalisation or Mix level is shown in a separate speakers, the Limit value is fixed at -11dBFS and the parameter display option for Dolby Digital sources: does not appear in the menu.
  • Page 57 DSP process. EX post-processing can be used with THX when processing mode, called Meridian EZ. This is designed to give decoding a 5.1-channel Dolby Digital signal. The decoded an exciting spacious surround enhancement for non-THX surround signals are matrixed to the four surround speakers enhanced 5.1 sources, such as Dolby Digital and DTS.

  • Page 58: Multi-Channel Presets

    D5, D6, or D7. The Cinema preset is a user preset which is provided when you reset the 568.2 to a standard Type; see Choosing a standard If a source, such as DVD, is configured to use the multi-channel setting, page 68.
  • Page 59 -18dB to The relative level of the LFE +10dB bass channel. Limit -15 to The peak-level limit of the total -5dBFS bass signal added to the main speakers. * Only available with compatible hardware; contact your Meridian dealer.

  • Page 60: Connections

    Setting up the digital surround processor his chapter explains how to install the digital surround processor. It describes what you should find when you unpack the unit, how you should connect it to your other audio equipment and speakers, and the siting constraints.

  • Page 61: Unpacking

    If the 568.2 Digital Surround Processor is supplied with a multi- channel input card, a Meridian Smart Link lead is also provided. EEC: This product has been designed and type-tested to comply with the limits set out in EN55013 and EN55020.

  • Page 62: Positioning The Digital Surround Processor

    Directly on top of heat producing equipment, such as a power amplifier. Ensure that air can flow through the cooling slots on the base and top cover. Alternatively, an optional Fan kit can be fitted to ensure adequate ventilation when the 568.2 is installed in an enclosed space.

  • Page 63: Connecting The Digital Surround Processor

    COMPOSITE/S IN The video output from the 581 To take advantage of the on-screen display you should loop Video Controller, or a video either composite or S-video through the 568.2; do not connect recorder, TV tuner, or cable both inputs. television.

  • Page 64: Digital Audio Inputs

    The digital connections should be made with high-quality 75 screened cable. Suitable cables are available from Meridian. We do not recommend using audio cables, which do not have adequate shielding or the correct impedance, or cables intended for UHF applications, as these do not provide adequate shielding in the 1–30MHz region.

  • Page 65: Audio Outputs

    To use a Meridian DSP loudspeaker in a particular position connect it to the appropriate digital output. The following table gives details of the other connections: To use a Meridian active loudspeaker, or an analogue speaker in Use this connection To connect to this conjunction with a suitable power amplifier, connect the input of the power amplifier to the appropriate analogue output.

  • Page 66: Connecting Video

    VIDEO OUT VIDEO Video lead If your surround system includes video the 568.2 can add a text overlay to the video signal, to provide additional information about its operation in the form of a textual on-screen display (OSD). In normal operation this repeats the information provided on the 568.2 front panel display.

  • Page 67: Connecting Speakers

    S5 lead Use the comms part of an M5 lead to connect one of the COMMS sockets on the 568.2 to the digital speaker you have chosen as the master (typically the centre speaker). Use the audio part of the M5 lead to connect the digital...
  • Page 68 Connect the speaker outputs from the stereo power amplifier screened audio cable. to suitable speakers. The Meridian 557 Stereo Power Amplifier provides balanced inputs, so you have the option of connecting to it using the balanced outputs of the 568.2 Digital Surround Processor.
  • Page 69 CROSSOVER INPUT INPUT Audio lead Connect the SUB analogue output socket from the 568.2 Digital Surround Processor to the subwoofer’s line level input. The digital surround processor provides very high-quality crossovers for the subwoofer, and for best results you should use these instead of the subwoofer’s crossover.

  • Page 70: Connecting Sources

    CD/D1 RADIO/A2 Audio lead Digital lead You can connect up to five digital sources to the 568.2 Digital You can connect up to two analogue sources to the 568.2 Surround Processor. Digital Surround Processor. Connect the digital source to one of the digital input sockets Connect the analogue source to one of the analogue input of the 568.2, using a high-quality digital phono lead.
  • Page 71 Connect the S-video output from the DVD player to the Optical lead S VIDEO IN socket of the 568.2, using an S-video lead. Connect the SMART LINK output from the DVD player to the Connect the S-video output from the LaserDisc player to the SMART LINK input of the 568.2, using an SVGA computer...
  • Page 72 ANALOGUE TV/A1 562/562V User Guide for more information. MAIN Configure the 568.2 to a 562 Type option; see Choosing a Audio lead Digital lead standard setting, page 68. Connect the MAIN digital output of the 562 or 562V to the CD/ D1 digital input socket of the 568.2, using high-quality 75...

  • Page 73: Connecting To Other Meridian Equipment

    Note: Do not, under any circumstances, connect any equipment Then configure the units with the following automatic setup other than Meridian 500, 800, 600, or 200 Series to the socket procedure: marked COMMS on the back of the digital surround processor.

  • Page 74: Configuring The Digital Surround Processor Without A Computer

    Configuring the digital surround processor without a computer he 568.2 Digital Surround Processor can be set up for most standard configurations of loudspeakers and sources using just the front panel controls and Meridian System Remote. This chapter explains how to configure the digital surround processor without using a computer, and then how to calibrate the loudspeakers and sources for your particular system.

  • Page 75: Choosing A Standard Setting

    The following diagram shows the meaning of the standard Type standard settings, called Types, which configure all aspects of codes: the 568.2 into the most commonly needed configurations. In addition, any User Types you create using the Meridian T y p e 5 . S D A A Configuration program are also available.
  • Page 76 To select a Type To set up the 568.2 for use with a 562 or 562V Multimedia Controller Put the digital surround processor into standby by pressing Off (front panel or remote). While in Type, select 562 Mode as follows: Hold down the A key on the front Type in...

  • Page 77: Standard Source Settings

    The digital surround processor provides 12 sources When the digital surround processor is reset to one of the corresponding to the 12 source selection keys on the Meridian standard Types the sources are set up with the labels, inputs, System Remote.

  • Page 78: Calibrating The System

    Sound your room. Pressure Level meter. These are available fairly cheaply from Tandy/Radio Shack, or your Meridian dealer may be able to lend Using the calibration procedure you one. We recommend that you perform the calibration procedure Set the Sound Pressure Level meter to C weighted, and Slow.
  • Page 79 To choose the distance units To start the calibration procedure You can choose to display and enter distances in either feet and Put the digital surround processor into standby by pressing inches, or metres. Off (front panel or remote). Press and hold the Off key on the front panel for at least five To change the distance units: seconds.
  • Page 80 To move between the calibration tests Press > (remote) or Source (front panel) to move to the next test. Press < (remote) to move back to an earlier test. Press Store (front panel or remote) to jump to the next set of tests.

  • Page 81: Calibration Tests

    THX approved this setting is recommended. Left +0.0 For example: If you have Meridian DSP loudspeakers they cannot be set above +0db. If you have an on-screen display it shows: Note: You cannot set the level of a subwoofer by ear, because low-frequency noises sound quieter.
  • Page 82 Distance Measure from the ear height at the listening position to the tweeter on each speaker (where applicable), in the distance units These tests allow you to adjust the delay of each of the speakers you have chosen; see To choose the distance units, page 72. in the layout to time-align the system so that sounds are Use the >...
  • Page 83 Fine tuning The next display shows the distance (or delay) for the same speaker. These tests allow you to fine-tune the phase and delay of each Left 18'0 speaker when used in conjunction with other speakers on the For example: layout.
  • Page 84 Pay particular attention to the centre channel, as this can have a dramatic effect on the overall sound. As you increase the delay the speaker will appear to move away from you. You have now completed the calibration of your system. Press Off (front panel or remote) to exit from the calibration procedure.

  • Page 85: Setting Up Subwoofers

    Xover 80Hz For example: The 568.2 will then return to standby with Sine/Sub mode turned Press A or V (remote) to set the crossover frequency. Sine/Sub mode adds two extra options to the DSP parameter For THX loudspeaker systems you should not adjust these menus: Sine and Xover.
  • Page 86 To use the sinewave sweep test To change the sweep rate Press < or > (remote) until the Sine/Sub mode includes a sinewave signal test, to help you set Pause 80Hz the subwoofer crossover frequencies, or check for room display shows: resonances.
  • Page 87 To change the volume To select other test signals Press < or > (remote) until the display shows the current Use the volume keys in the usual way. signal. Warning: Very loud low-frequency signals may damage Signal Sine speakers. For example: To select the channel Press A or V to choose between the following test signals: Press <...

  • Page 88: Using A Computer

    To configure the 568.2 you use the Meridian Configuration program, an intelligent Windows-based application that is supplied with the 568.2. This allows you to create one or more custom configurations, and download them to the 568.2 so that they are available alongside the built-in types.

  • Page 89: The Meridian Configuration Program

    568.2 Digital Surround Processor to suit your own personal Sources preferences and the particular configuration of equipment in your system.

  • Page 90: Installing The Meridian Configuration Program

    Planning the configuration To use the Meridian Configuration program you need: Before creating a configuration for your 568.2 Digital Surround Processor it is a good idea to plan the following aspects of your A computer running Windows 95 or Windows NT 4.00.
  • Page 91 To run the Meridian Configuration Button Option Function program Creates a new settings file. Click Start, point at Programs, then click Meridian Open Opens an existing settings file. Configuration. Save Saves the current settings file to disk. The Meridian window will be displayed:...
  • Page 92 The serial cable is symmetrical, and can be connected either way round. Connect one end to the RS232 connector on the back panel of the 568.2 Digital Surround Processor. Connect the other end to one of the serial ports on the PC or PC notebook computer.

  • Page 93: Creating A New Settings File

    A new settings file will be created for you, with the initial name Meridian Configuration program, and how to enter personal MSF1, and the Meridian window will show a Surround information to identify the settings in your product. processor icon to identify the product you are configuring:...
  • Page 94 Owner lets you enter personal information, for future reference, and choose the message displayed when you first switch the The Owner text will be displayed when you turn the 568.2 on. unit on, and Settings is the initial configuration in the settings The Dealer and Description text are displayed after the product file.
  • Page 95 Sources, and Presets. The options available in each case are explained in the following sections. At this stage you may find it useful to maximise the Meridian Configuration program window so you can see all the options on each screen.

  • Page 96: Setting Up Speakers

    The first stage in setting up the speakers is to specify the number of speakers in the layout, and the type and size of each speaker. The 568.2 Digital Surround Processor can support up to eight analogue or digital loudspeakers. To specify the speaker layout Click Speakers in the left-hand panel of the Meridian window.
  • Page 97 If you specify 96.24 DSP for the left, right, and centre speakers, an additional Meridian High Resolution setup option allows you Loudspeaker Recommended setting to specify when to use Meridian High Resolution; see Changing the setup options, page 101. DSP8000, DSP5500HC Large 96.24 DSP DSP5000, DSP5500, Large DSP or Large 96.24 DSP *...
  • Page 98 Centre From the first drop-down menu specify the number of rear speakers and side speakers you have in your surround Use the Centre drop-down menus to specify which presets use system. the centre speaker, and its size and type. Use the Sides and Rears drop-down menus to specify the From the first drop-down menu choose one of the following type of the side and rear speakers.
  • Page 99 Sizes tab to display the Sizes page of speaker settings: A setting of Max corresponds to no protection, and 0 corresponds to full protection. By default any Meridian DSP loudspeakers in your system are set to Max, as these include built-in protection.
  • Page 100 Narrow The digital surround processor provides a low-pass cutoff; the You have now completed the first stage of setting up the 568.2, subwoofer’s crossover should be and you should save the changes you have made by choosing bypassed. This is the recommended Save from the File menu.

  • Page 101: Setting Up Sources

    Select the source in the list of sources. Click the Options tab: To set up sources Click the Sources icon in the left-hand panel of the Meridian window. The right-hand panel shows a list of the 12 sources that are available.
  • Page 102 To set up an enhanced source If you have a suitable source, such as the 598 DVD Player, connected to the 568.2 via the MHR Smart Link, you can designate one of the 12 sources as an enhanced source to take advantage of the additional content information provided by the MHR Smart Link.
  • Page 103 Presets All CDs and LaserDiscs are currently 16-bits. The 518 and 800 DVD/CD Player provide 24 bits. If in doubt choose 24-bit. In the Presets section specify the DSP preset you want to use for each of the five alternative audio formats: PCM, Dolby For analogue inputs the precision is automatically set to 24-bit.
  • Page 104 If the source is connected to another Meridian unit, set Option Description Comms type to 1C for a Meridian CD player, 2C for a Number of video frames of Adds a delay required by Meridian FM tuner, and 3C for a Meridian DVD player.

  • Page 105: Configuring Presets

    Each user-defined preset is based on one of the built-in presets, and can have any name of your choice. To set up presets Click the Presets icon in the left-hand panel of the Meridian window. The right-hand panel shows a list of the 24 built-in presets, and the 10 unused user-defined presets.
  • Page 106 Note: That the treble and bass settings will not be available if The new preset is created in the first available space after the your system includes DSP loudspeakers, because in this case built-in presets. the DSP speakers handle the treble and bass adjustments. Select the new preset you have created.
  • Page 107 To delete a user-defined preset Select the preset in the list of presets. Click the Delete this preset button. To copy a preset to a specific position in the list of user-defined presets Highlight the preset you want to copy. Choose Copy from the Edit menu, or click the Copy button in the toolbar: Highlight the user-defined preset or empty position you want...

  • Page 108: Changing The Setup Options

    What it means To change the setup options Lock settings on Locks the DSP preset parameters. product Click the Setup icon in the left-hand panel of the Meridian window. On-screen display Specifies the default position of the position on-screen display.
  • Page 109 Option What it means If selected, the <, >, V, A, Store, Meridian DVD present and Clear keys on the Meridian System Remote operate the DVD player menus rather than the Digital Surround Controller menus. Meridian High Resolution Specifies whether the digital output uses Meridian High Resolution for all sources, or only when necessary.

  • Page 110: Calibrating The Settings With Your System

    Once you have edited the settings to suit the configuration of surround processor your system, the next step is to store the settings to the 568.2 and use the calibration listening tests built into the 568.2 to calibrate it for correct performance.
  • Page 111 To fetch the calibrated settings When the download is complete the 568.2 will automatically reset itself to use the new settings, and show the owner name you defined. Finally fetch the calibrated settings back from the digital surround processor as follows:...

  • Page 112: Creating A User Type

    Once you have fetched the calibrated settings from the digital surround processor, the final step is to store them permanently to the 568.2 as a User Type, so that you can reset the unit to Click the Settings icon in the left-hand panel of the Meridian them whenever you need to.
  • Page 113 To create a new User Type: Select the User Type you want to base it on in the left-hand panel of the Meridian Setup window; eg Standard. Click the Copy as new user type button. The new User Type will be specified as In use, as...
  • Page 114 To copy settings between User Types Highlight the User Type you want to copy the settings from. Choose Copy from the Edit menu, or click the Copy button in the toolbar: Highlight the User Type you want to copy the settings to. Choose Paste from the Edit menu, or click the Paste button in the toolbar: You can also copy and paste source and preset settings from...

  • Page 115: Completing The Configuration

    Completing the configuration The final stage in creating a settings file is to save it, and then If the download was successful the 568.2 will briefly display the store it to the digital surround processor. owner name you have defined.

  • Page 116: Troubleshooting

    If you are still not able to resolve a difficulty with the help of this guide and the suggestions in the following pages, please contact your Meridian dealer or Meridian Audio Ltd.

  • Page 117: General Operating Problems

    If the 568.2 will still not illuminate, check any fuses in your power See if the 568.2 has been set up as not controller in the supply and the fuse in the inlet of the 568.2. If these are all Meridian Configuration program; see Changing the setup intact, contact your dealer.

  • Page 118: Audio Problems

    For example, LP normally has lower noise when the Reorient the receiving aerial (or antenna) or route the antenna cable of the receiver as far as possible from the 568.2 and its stylus is not in the groove; similarly tape will be quieter when it is cabling.
  • Page 119 Some optical sources, in particular some LaserDisc players, provide poor drive waveforms that do not meet the EIAJ In a digital or Meridian feed to the centre, you may have set it standard. This is because the light modulates but never goes up to be right instead of left, and therefore it may be playing a quite ‘black’...
  • Page 120 The preset changes unexpectedly with a multi-channel source If you are using a non-Meridian source on the MHR Smart Link input, proprietary data may cause preset switching. Select Force this source to be six-channel for the source. See To set the advanced source options, page 96.

  • Page 121: Video Problems

    Are you using suitable quality cables with good connectors? Is there a ground loop created between any of the components connected to the 568.2? Remember that reception of broadcast or cable signals can be significantly deteriorated by cross-modulation in the RF domain.

  • Page 122: Meridian Configuration Program Problems

    COM port. Check that it is connected correctly. If you have any DSP speakers in the layout, treble and bass Turn off the 568.2 for a few seconds and turn back on, then are not available. retry. The Speakers options for Centre, Sides, and Rears can only Quit from all other programs and retry.

  • Page 123: Service And Guarantee

    The guarantee is void if the 568.2 Digital Surround Processor In the unlikely event that your 568.2 fails to function correctly, it has been subject to misuse, accident, or negligence, or has should be returned, in its original packaging, to your Meridian been tampered with or modified in any way without the written dealer.

  • Page 124: Glossary

    Absolute phase Controller Dolby Surround A control which changes the phase of the The product in a Meridian system that The encoding system used for the majority signals to all the speakers. uses the infra-red signals from the remote of movies on video and many TV to control the system.
  • Page 125 120Hz in a Dolby Digital that do not support DVD-Audio. system. The flexible system for choosing options and configuring settings in Meridian products. On the 568.2 the menus are controlled by the <, >, A , and V keys on the MSR.
  • Page 126 CD or DVD, without any loss of quality. Meridian Settings File, a file containing settings and User Types for one or more A DSP decoding option in the 568.2. You Mono sub Meridian products. can create user-defined presets based on...
  • Page 127 The Meridian 500 and 800 Series provide 12 named sources, corresponding to the names of the 12 source keys on the MSR. In the 568.2 you can choose the logo Additional processing that follows Dolby displayed for each source, and the input Pro Logic Surround decoding to give a used for it.

  • Page 128: Index

    25, 26, 28 Dialog Normalisation 49 Fan kit 8, 55 balanced outputs 58 digital audio inputs 57 Meridian 511 S-patch Box 8 Bass (DSP parameter) 26, 27 Digital DSP preset 9 Meridian 513 Smart Link patch bass, changing 27...
  • Page 129 DTS THX 47 Academy 12, 41 Roll 40, 45 editing name 35 Balance 25, 26, 28 S Delay 26, 45 Meridian EZ 47 Bass 26, 27 S Filter 43, 44 modifying a built-in preset using a Centre 26, 30, 43 saving 34...
  • Page 130 DTS THX DSP preset 47 Limit (DSP parameter) 48, 49, 52 connecting 63 DTS THX encoding 10 lip sync, changing 32 Meridian 511 S-patch Box 8 DVD player, connecting 64 LipSync (DSP parameter) 26, 32 Meridian 513 Smart Link patch dynamic range control 48...
  • Page 131 Meridian EZ DSP preset 10, 47 Options (View menu) 85 presets (continued) Meridian High Resolution Options dialogue box 85 Dolby Digital 47 (MHR) 3, 102 OSD (DSP parameter) 26, 32 Dolby Digital THX 10, 47 Meridian M1500 or M2500, outputs, audio 58...
  • Page 132 Presets icon 82, 98 sample configurations sources (continued) Pro Logic DSP preset 11, 39 Meridian Analogue Theatre 5 setting advanced options using a Pro Logic II DSP preset 10, 38 Meridian Digital Theatre 6 PC 96 Save As (File menu) 86...
  • Page 133 105 Trifield DSP preset 12, 42 user-defined presets troubleshooting 109 clearing 36 audio 111 creating 99 Meridian Configuration program 115 deleting 100 video 114 editing names 35 TV Logic DSP preset 11, 40 ventilation 55 two-channel formats video connections 56, 59...

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