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Meridian C61R Installation Manual

Digital surround controller
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C61R Digital Surround Controller
Installation Guide

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Summary of Contents for Meridian C61R

  • Page 1 C61R Digital Surround Controller Installation Guide...

  • Page 2: Important Safety Instructions

    Important safety instructions P r e f a c e To avoid overheating • Read the instructions. • Keep these instructions. • Leave at least 10cm around the equipment to ensure sufficient • Follow all instructions. ventilation. • Do not use this apparatus near water. •...

  • Page 3: Table Of Contents

    C o n t e n t s Introduction Meridian Configuration Program Provides information about the C61R digital surround Explains how to install the Meridian Configuration Program, controller, and technical specifications. with a general overview of its key feature, and gives...
  • Page 4 C o n t e n t s Control Window Explains how to control a Meridian product from a PC via a serial or USB cable. Running the Meridian Control Window Emulating an MSR+ or MSR Using the Command tab DSP presets Gives details of the DSP presets and their parameters, and describes how to modify them.
  • Page 5 Designed and manufactured in the UK by Meridian Audio (US patents 5,043,970;5,189,703;5,222,059. European patent Ltd. Meridian Audio reserves the right to make changes and 0323830), Trifield Productions Ltd, and Nimbus Records Ltd. improvements to any of the products described in this document without prior notice.
  • Page 6 P r e f a c e...

  • Page 7: Introduction

    Meridian design philosophy, as well as superior performance. hearing. The C61R is thus a perfect processor for the very latest in As a result, the C61R can decode surround signals from all PCM digital audio, such as DVD-Audio and DVD-Video.
  • Page 8 DSP mode of your choice. Meridian Room Correction The C61R incorporates Meridian Room Correction, a unique system that compensates for acoustic deficiencies in your listening room, particularly at the bass end. It achieves this by automatically...

  • Page 9: Specifications

    Specifications I n t r o d u c t i o n Digital coax inputs 6 coax digital inputs, 2 6-channel coax inputs, all MHR. USB input 1 USB digital input allows connection to a Windows PC or Macintosh. Digital optical inputs 5 optical digital inputs.
  • Page 10 I n t r o d u c t i o n...

  • Page 11: Installing The Digital Surround Controller

    You should not make any connections to the product or to any other component in the system while the AC power supply is connected and switched on. Unpacking The C61R Digital Surround Controller is supplied with the following accessories: • MSR+ remote control with batteries, manual, and spare key caps.

  • Page 12: Audio Inputs

    TAPE SURR R RIGHT DISC SURR C/LFE G61 SURROUND CONTROLLER DESIGNED AND MADE IN ENGLAND BY MERIDIAN AUDIO LTD DESIGN AND COPYRIGHT 2005 Multichannel analogue inputs Digital coax inputs Analogue inputs Multichannel digital coax inputs Use this connector To connect to this...
  • Page 13 DIGITAL OUT COMMS COMMS LEAD DIGITAL LEAD You can connect up to 12 digital coax sources to the C61R Digital If the source is a Meridian product connect together the COMMS Surround Controller. sockets using the Comms lead provided. • Connect the digital source to one of the digital input sockets of the digital surround controller, using a 75Ω...
  • Page 14 You can connect a Windows PC or Macintosh to the C61R via the The first time that the C61R is plugged in to the PC or Macintosh USB input to allow you to use the C61R as a digital audio output it will automatically be recognised, and appropriate drivers will device.
  • Page 15 To connect to a source with analogue multichannel outputs (eg SACD or DVD-A player) SACD/DVD-A player C61R Digital Surround Controller MULTI ANALOGUE MULTICHANNEL INPUT 1...

  • Page 16: Audio Outputs

    The unbalanced analogue input of a power amplifier or active loudspeakers, using REAR R, CENTRE, SUB, LZ, RZ screened coax phono leads. The C61R hardware architecture is designed to process up to 12 The C61R provides analogue and/or digital output sockets for these completely independent output channels. Currently the software eight speakers.
  • Page 17 • Use the Comms part of an M5 lead to connect one of the • Link each pair of speakers together with an S5 lead, out of COMMS sockets on the C61R to the digital speaker you have the first speaker and into the second speaker, as shown in the chosen as the master (typically the centre speaker).
  • Page 18 To connect the C61R to power amplifiers or to analogue active and passive speakers powered by a Meridian G41 Analogue subwoofer...
  • Page 19 Use RZ and LZ if you have two subwoofers. digital and analogue inputs, allowing you to connect them to either the digital or analogue subwoofer outputs of the C61R. The The digital surround controller provides a very high-quality analogue connection must be used if you do not have a digital crossover for the subwoofer, and for best results you should use main speaker.

  • Page 20: Communications Connections

    TAPE SURR R RIGHT DISC SURR C/LFE G61 SURROUND CONTROLLER DESIGNED AND MADE IN ENGLAND BY MERIDIAN AUDIO LTD DESIGN AND COPYRIGHT 2005 Infra-red repeater input Power & fuse Use this connector To connect to this DIN COMMS Other Meridian C Series, G Series, or 800 Series equipment, or Meridian DSP loudspeakers.
  • Page 21 To connect to other Meridian C Series, G Series, or 800 Series equipment C61R Digital Surround Controller C Series, G Series, or 800 Series unit COMMS...
  • Page 22 I n s t a l l i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r...

  • Page 23: Configuring The Digital Surround Controller

    C o n f i g u r i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r Configuring the digital surround controller This chapter explains how to configure the digital surround controller using the Configuration Wizard.

  • Page 24: Stage 1: Resetting The Product

    C o n f i g u r i n g t h e d i g i t a l s u r r o u n d Stage 1: Resetting the product c o n t r o l l e r The digital surround controller provides several alternative standard •...
  • Page 25 C o n f i g u r i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r Types The following table lists the available Types: Type Speakers...

  • Page 26: Stage 2: Configuring Speakers

    C o n f i g u r i n g t h e d i g i t a l s u r r o u n d Stage 2: Configuring speakers c o n t r o l l e r The Speakers configuration stage allows you to set up the digital The options are summarised in the table on the next page.
  • Page 27 C o n f i g u r i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r Speaker options The following table summarises the speaker options: Option Values...

  • Page 28: Stage 3: Configuring Sources

    C o n f i g u r i n g t h e d i g i t a l s u r r o u n d Stage 3: Configuring sources c o n t r o l l e r The digital surround controller provides up to 12 sources The display shows the first source and the first configuration option corresponding to the 12 source keys on the MSR+:...
  • Page 29 C o n f i g u r i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r Source options The following table summarises the source options: Option Values...

  • Page 30: Stage 4: Configuring Other Settings

    C o n f i g u r i n g t h e d i g i t a l s u r r o u n d Stage 4: Configuring other settings c o n t r o l l e r The next stage allows you to configure other aspects of the To change a setting •...
  • Page 31 Whether the soft keys revert to the home keys after a delay. Diagnostic displays: on, off Whether diagnostic displays are shown. Is the C61R IR Controller? Auto, Controller, Not Controller Whether the product is the infra-red controller for the system. Main System Address Advanced setting (normally 1).
  • Page 32 C o n f i g u r i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r...

  • Page 33: Calibrating The System

    Calibrating the system To help you to set up the installation to give the best possible sound with any particular combination of associated equipment, the C61R Digital Surround Controller includes a built-in calibration procedure. This calibration procedure uses test signals to present a series of sounds, which you use to adjust certain aspects of the system to their optimum settings.
  • Page 34 C a l i b r a t i n g t h e s y s t e m To start the calibration procedure For more detailed information about this and the other calibration Either: tests see the following sections. •...

  • Page 35: Calibration Tests

    C a l i b r a t i n g Calibration tests t h e s y s t e m Levels • When you have completed the Levels section press > to proceed to the next test. These tests allow you to adjust the output level to each speaker individually, and it follows the general guidelines from Dolby Distance Laboratories and THX.

  • Page 36: Fine Tuning

    C a l i b r a t i n g t h e s y s t e m • Use > and < to move between each of the speakers in the The next display shows the distance for the same speaker. For layout.

  • Page 37: Speaker Size

    C a l i b r a t i n g Speaker size t h e s y s t e m These tests allow you to determine the bass handling capability of subwoofers and large analogue speakers. Once set, the digital surround controller will limit the bass level to protect the speakers from potential damage.

  • Page 38: Using The Sine/Sub/Sens Controls

    Sinewave sweep test The bottom line of the display shows the Sine/Sub/Sens controls: The C61R includes a sinewave signal test, to help you set the subwoofer crossover frequencies, or check for room resonances. To avoid possible damage to the speakers the volume is reduced to 50, if necessary, on entering the test.
  • Page 39 C a l i b r a t i n g t h e s y s t e m The display shows: To change the volume • Use the volume keys in the usual way. Sine 80.0Hz To change the input Chan óòô...

  • Page 40: Setting Up Sources

    C a l i b r a t i n g t h e s y s t e m Setting up sources The display shows, for example: This section explains how to use the Sine/Sub/Sens controls to 2.0V Clip -0 adjust the sensitivity of the analogue sources.

  • Page 41: Meridian Configuration Program

    M e r i d i a n C o n f i g u r a t i o n P r o g r a m Meridian Configuration Program This chapter explains how to install the Meridian Configuration Program, with a general overview of its key features, and then gives complete step-by-step instructions for creating a complete configuration for a typical simple system.
  • Page 42 • You can edit the G Series soft keys. • If your controller is a C61R, G61R, G68, or 861 you can take advantage of Meridian Room Correction. • You can set up multiple systems far more conveniently than by manually configuring each product.
  • Page 43 M e r i d i a n C o n f i g u r a t i o n P r o g r a m The Products page The following illustration shows the key features of the Products page, which lets you specify how your system is interconnected: Toolbar Breadcrumb Trail Information Bar...

  • Page 44: Installing And Running The Meridian Configuration Program

    M e r i d i a n C o n f i g u r a t i o n Installing and running the Meridian Configuration Program P r o g r a m Requirements Running the Configuration Program To use the Meridian Configuration Program you need: •...

  • Page 45: Quick Tour

    M e r i d i a n C o n f i g u r a t i o n Quick tour P r o g r a m Starting a configuration This section gives complete step-by-step instructions for creating a complete configuration for a typical simple system.
  • Page 46 M e r i d i a n C o n f i g u r a t i o n Products: Adding a controller P r o g r a m The controller is defined as the product that selects sources and The Products page will then show a block representing the controls the volume for the system;...
  • Page 47 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Advanced tips For example, to delete a product: Adding products by dragging them from the Resource Bar •...
  • Page 48 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Configuring 800 Series products Changing the value of a property • Click the value of the property. Adding an 800 Series controller •...
  • Page 49 M e r i d i a n C o n f i g u r a t i o n P r o g r a m The following dialogue box allows you to specify the card type and, Initially this shows a graphic of the card positions: when appropriate, the position of the jumper identifying the card: Removing a card...

  • Page 50: Products: Inserting A Source

    M e r i d i a n C o n f i g u r a t i o n Products: Inserting a source P r o g r a m The next step is to add the sources in your system. For this Quick The Meridian Configuration Program will use a set of connections tour we will assume a satellite receiver is required.
  • Page 51 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Advanced tips Renaming a source You can give each source a name of up to five characters to Showing a list of the recommended connections identify it on the front-panel display: •...
  • Page 52 M e r i d i a n C o n f i g u r a t i o n P r o g r a m • Choose the MSR+ key from the MSR+ key drop-down list: • Drag between the output on the source and the input on the controller that you want to connect: When you release the mouse button the cable will be connected: Showing and hiding connections...
  • Page 53 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Making a multichannel connection Adding or removing inputs or outputs If you are connecting a product with multichannel outputs, such With non-Meridian sources you can add new inputs or outputs, as a G98DH DVD Player, to a digital surround controller with or remove inputs or outputs, to reflect the connectors provided by...

  • Page 54: Products: Adding Speakers

    M e r i d i a n C o n f i g u r a t i o n Products: Adding speakers P r o g r a m The next step is to add the speakers in your system. •...
  • Page 55 M e r i d i a n C o n f i g u r a t i o n P r o g r a m • Click the Yes button. Finally insert a subwoofer into the layout: •...
  • Page 56 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Advanced tips The Speaker connections and Controller connections pages will appear in the Breadcrumb Trail after the Soft keys page: Adding a speaker by dragging it from the Resource Bar •...

  • Page 57: Soft Keys

    M e r i d i a n C o n f i g u r a t i o n Soft keys P r o g r a m The Soft keys page allows you to customise the soft keys for each of the G Series products in the system, starting with the controller.
  • Page 58 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Advanced tips Renaming a source • Right-click a soft key corresponding to a source, then click Changing the soft key layout Rename Source…...

  • Page 59: Bass Management

    M e r i d i a n C o n f i g u r a t i o n Bass management P r o g r a m The Bass management page specifies how bass is handled in •...
  • Page 60 M e r i d i a n C o n f i g u r a t i o n P r o g r a m If there is one subwoofer in the layout, and you have specified the The LFE low pass filter option sets the low-pass filter for the LFE front speakers as Small, the subwoofer will be used for the bass channel, for the Music and 5.1 Movie speaker layouts.

  • Page 61: Speaker Distances

    M e r i d i a n C o n f i g u r a t i o n Speaker distances P r o g r a m The Speaker distances page gathers information about the relative positions of the full-range speakers in your system, and the distance of each speaker from the listening position.

  • Page 62: Speaker Calibration

    M e r i d i a n C o n f i g u r a t i o n Speaker calibration P r o g r a m The Speaker calibration page allows you to calibrate the The Meridian Configuration Program stores the settings you speakers attached to your controller while listening to the product.
  • Page 63 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Advanced tips Specifying the serial port • Click the Options… button on the Pre-calibration store page to display the Comms Port tab on the Options dialogue box: •...

  • Page 64: Room Correction

    M e r i d i a n C o n f i g u r a t i o n Room correction P r o g r a m The Room correction page runs the Meridian Room Correction procedure. This is optional and you can skip this stage by clicking the Next link in the Breadcrumb Trail: For information about running the Room Correction procedure see the chapter Room Correction , page 65.

  • Page 65: Dsp Presets

    M e r i d i a n C o n f i g u r a t i o n DSP presets P r o g r a m The DSP presets page shows a list of the DSP presets available to For a simple configuration you can skip this page.
  • Page 66 M e r i d i a n C o n f i g u r a t i o n P r o g r a m Changing the preset mapping The Preset Mapping pane shows the default DSP preset selected for each source and each audio format.

  • Page 67: Tuner Presets

    M e r i d i a n C o n f i g u r a t i o n Tuner presets P r o g r a m For each product in your system that includes a radio tuner, a Tuner presets page allows you to define the legend displayed on the front panel display for each tuner preset, and the waveband, frequency, and audio mode it selects:...

  • Page 68: Store Settings

    M e r i d i a n C o n f i g u r a t i o n Store settings P r o g r a m This page stores the settings to the controller: • Connect the serial cable. For more information see To connect the serial cable , page 56.

  • Page 69: Finish

    M e r i d i a n C o n f i g u r a t i o n Finish P r o g r a m The Finish page confirms that you have successfully completed the configuration of your system. Save a copy of your configuration Although a copy of the configuration document is saved in the controller for your system, it is recommended that you also save...
  • Page 70 M e r i d i a n C o n f i g u r a t i o n P r o g r a m...

  • Page 71: Room Correction

    Room Correction The C61R digital surround controllers incorporate room correction, which takes advantage of advanced digital signal processing techniques to compensate for room artefacts, including resonances and reflections, to give a significant improvement in the sound.
  • Page 72 R o o m c o r r e c t i o n speaker levels during the Calibration procedure. After an initial For example, in an L-shaped room one loudspeaker may need to be short test sequence, designed to check that the microphone is close to the wall whereas its partner is in an open area, giving rise set up correctly, a test signal is presented to each loudspeaker to an imbalanced sound field.

  • Page 73: Auto Build

    R o o m Auto Build c o r r e c t i o n This section explains how to create a basic room correction using To set up the room correction options default settings. The first step is to specify options for the room correction procedure.
  • Page 74 R o o m c o r r e c t i o n • If you are using a C61R, G61R, or G68 Digital Surround The Room correction page shows information about each test Controller connect the SPL meter or microphone to the analogue and a progress bar indicates the percentage completed: input A8 (L).
  • Page 75 R o o m c o r r e c t i o n Each preset will be assigned the profile designed for the layout used with the preset. The wizard creates profiles called Mus, Log, and Mov for the Music, Logic, and 5.1 Movie speaker layouts respectively.

  • Page 76: Viewing And Repeating Measurements

    R o o m Viewing and repeating measurements c o r r e c t i o n The Measurements tab shows a list of the measurement sets you have created. Each measurement set shows the channels measured for each of the speaker layouts set up in the digital surround controller configuration: You can also create additional measurement sets;...
  • Page 77 R o o m c o r r e c t i o n You can then set different Profile settings for each plot: Shows the response of the room to a series of short sine wave pulses of frequencies between 0 and 250Hz. It shows how the response decays over time at each of those frequencies.
  • Page 78 R o o m c o r r e c t i o n Low frequency response In the Waterfall Plot the values displayed correspond to Time = 0. To change the axes • Click the Axes… button to display the axis parameters. The Data Range section on each tab shows the range of the data measured by the Room Correction procedure.
  • Page 79 R o o m c o r r e c t i o n The following dialogue box allows you to select which channels To create multiple measurements you want to repeat: You can create additional measurement sets to take account of different configurations of the room, such as with curtains open or closed.

  • Page 80: Viewing Profiles

    R o o m Viewing profiles c o r r e c t i o n The Profiles tab shows a list of the profiles that have been • Click the OK button to continue. calculated, together with the number of filters used for each profile and the number of remaining filters available: If you have more than one measurement set the following dialogue box is displayed to allow you to select which measurement set you...

  • Page 81: Editing Filters

    R o o m Editing filters c o r r e c t i o n After building the filters for a profile you can edit the filters The columns give the Centre Frequency (Hz), Gain (dB), Filter numerically or graphically to adjust their parameters, or change the Bandwidth (Hz), Room Mode Bandwidth (Hz), Equalized Bandwidth response of each filter.
  • Page 82 R o o m c o r r e c t i o n To view the filters graphically The currently selected filter is displayed with a red vertical bar • Select Graphical: at the filter centre frequency, and a rectangle indicating the bandwidth and gain of the filter.
  • Page 83 R o o m c o r r e c t i o n Bandwidth • Drag one of the sides of the filter, or press c< or c>: To add a filter • Click the Add button on the Numeric or Graphical tab: •...

  • Page 84: Changing Settings At A Later Date

    R o o m Changing settings at a later date c o r r e c t i o n This section describes how to change the room correction or To change other settings if you have the original MSL file configuration settings of the digital surround controller at a later •...
  • Page 85 R o o m c o r r e c t i o n measurements and profiles and store these to the digital surround controller, the old profiles will be overwritten. • Change the settings as required and store the new settings to the digital surround controller.
  • Page 86 R o o m c o r r e c t i o n...

  • Page 87: Control Window

    C o n t r o l W i n d o w Control Window The Meridian Control Window emulates an MSR+ to allow you to control a Meridian product from a PC via a serial or USB cable. Running the Meridian Control The Meridian Control Window will be displayed: Window •...

  • Page 88: Emulating An Msr+ Or Msr

    C o n t r o l Emulating an MSR+ or MSR W i n d o w To send a command to the product A tooltip shows the description of the key followed by the key’s • Click the corresponding button on the Control Window. command: The bar above the buttons shows the response from the product, corresponding to the front panel display.

  • Page 89: Using The Command Tab

    C o n t r o l Using the Command tab W i n d o w The Command tab lists all the available commands under four • Enter the argument from the keyboard: headings: Source, General, Function + MSR keys, and Preset: •...
  • Page 90 C o n t r o l W i n d o w...

  • Page 91: Dsp Presets

    Layout Description Music For music presets: two-channel (eg Trifield) and The C61R Digital Surround Controller provides two types of DSP multichannel (eg Discrete). preset. One set is available if the input is two-channel; eg from a Logic For two-channel movie presets: eg PLIIx Movie.
  • Page 92 D S P p r e s e t s Standard parameters All DSP presets (except Mono and Direct) provide the following standard parameters. Individual DSP presets provide additional parameters, to allow you to adjust specific features provided by that preset. For full details refer to information about each preset later in this chapter.
  • Page 93 The C61R provides several signal processing options for two- channel material. The Music DSP presets are designed for use with The Music DSP preset is recommended for recordings made with...
  • Page 94 D S P p r e s e t s Ambisonics The fundamental difference between Ambisonics surround sound The Ambisonics DSP preset can decode UHJ format, the two- and conventional stereo is that the signals from all the speakers channel stereo-compatible encoding found on Ambisonically- combine to produce a coherent soundfield at the listening position, recorded discs and broadcasts.
  • Page 95 D S P p r e s e t s MusicLogic MusicLogic is a music DSP preset based on Pro Logic II with the addition of user-adjustable steering, designed to provide an exciting experience with many types of studio-produced music. MusicLogic DSP preset parameters Parameter Options...
  • Page 96 D S P p r e s e t s Stereo and Direct stability compared with the original Pro Logic decoding. Meridian’s The Stereo preset passes the left and right input signals directly to implementation of Pro Logic IIx uses proprietary code based on 48- the left and right main speakers.
  • Page 97 D S P p r e s e t s TV Logic TV Logic is a Logic preset based on Pro Logic IIx with the addition of user-adjustable steering, designed to give higher intelligibility and a more appropriate spatial presentation for studio-based TV material.

  • Page 98: Dsp Presets For Multichannel Material

    C61R as discrete channels. With suitable loudspeakers The multichannel Music presets all use the Music speaker layout the C61R can upsample these to provide a more enjoyable and the multichannel Movie presets all use the 5.1 Movie speaker surround experience.
  • Page 99 D S P p r e s e t s As with the PLIIx THX DSP preset, THX re-equalises the signals to suit domestic listening conditions, and applies frequency-response correction and decorrelation to the surround channels to make the surround sound more realistic. It can be used whether or not your other equipment is THX approved.
  • Page 100 D S P p r e s e t s Ambisonics The Ambisonics preset allows you to decode multi-channel sources which have been encoded in Ambisonics B format. Ambisonics B format contains four independent channels of information to give a three-axis representation of the sound at the recording position.

  • Page 101: Defining Your Own Presets

    Defining your own presets D S P p r e s e t s The C61R Digital Surround Controller allows you to modify any of Alternatively press V to choose the built-in preset you started the built-in presets, and save them for future use.
  • Page 102 D S P p r e s e t s For example, you could change the name to: Write label Concert for preset ìî ïñ óòô öõú Store • When you have entered the name you want to use press Store. The display shows: Stored ìî...

  • Page 103: Troubleshooting

    If the light still does not illuminate, check any fuses in your power • Observe all units responding correctly. supply and the fuse in the inlet of the C61R. If these are all intact, contact your dealer. In extreme cases, the memory of the C61R may have been corrupted.

  • Page 104: Audio Problems

    Auto Configure procedure; see To connect to other • If the C61R seems to be the cause of hum consult your dealer. Meridian C Series, G Series, or 800 Series equipment , page 15. • See if the C61R has been set up as Not Controller in the There is radio interference Configuration Menu;...
  • Page 105 The DTS audio stream is indistinguishable from a PCM audio comparison, analogue sources are likely to be of the order of: stream; the C61R takes 30ms to identify the encoding, during which a hiss is heard. • VCR, 12 bits.
  • Page 106  0 0 Tr o u b l e s h o o t i n g Room Correction problems • Ensure that the lead from the SPL meter is intact. • Check that the SPL meter is switched on and set to the 90dB This section gives suggested solutions to typical problems that band, or the band which includes 90dB, and with C weighting.
  • Page 107  0  Tr o u b l e s h o o t i n g Power OK, SNR result “Poor” SPL meter is set on a low band The reasons for this are described in detail in the following section The following graph shows an impulse response obtained when a where example measurements are also shown.
  • Page 108  0  Tr o u b l e s h o o t i n g Loudspeaker is running in a non-linear range Hum in the system The effects of a loudspeaker running in a non-linear range is most The effect of hum on the measurement is most easily observed in easily observed in the impulse response.

  • Page 109: Maintenance

     0  Maintenance Tr o u b l e s h o o t i n g Cleaning To change the mains fuse • Remove the mains connector, and pull out the drawer above the To clean the case, display panel, and keypad power input to access the fuse.

  • Page 110: Service And Guarantee

    In the unlikely event that your product fails to function correctly, in any way without the written authorisation of Meridian Audio it should be returned, in its original packaging, to your Meridian Limited.

  • Page 111: Index

     0  Index I n d e x calibration tests (continued) levels 29 Academy (DSP parameter) 91 speaker size 31 accessories 5 cards, 800 series active loudspeakers, connecting to 12 adding 42 active subwoofer, connecting to 13 displaying properties 43 Ambisonics (DSP preset) 88, 94 removing 43 analogue source, connecting 7...
  • Page 112  0  I n d e x connections (continued) DSP parameters (continued) making automatically 44 Input 91 making manually 45 LFE 92 multichannel 47 LipSync 86 Connection Wizard 44 Panorama 89 controller Party? 91 adding 40 Phase 86 properties 41 Pro Logic 90 Controller, setting 15 RC 86...
  • Page 113  0  I n d e x DSP presets (continued) Discrete 92 guarantee 104 editing 59 Mono 91 multichannel 92 help, on-line 39 Music 87 HS Output? (DSP parameter) 86 MusicLogic 89 PLIIx Mov6 93 PLIIx Movie 90 PLIIx Mus6 93 impulse response 71 PLIIx Music 89 Information bar 39...
  • Page 114  0  I n d e x Measurements tab 70 Products page 37, 39 Meridian DSP loudspeakers, connecting to 11 Pro Logic (DSP parameter) 90 Mono (DSP preset) 91 properties, displaying or changing 41 MSR/MSR+ emulating 82 multichannel connections 47 Music (DSP preset) 87 RC (DSP parameter) 86 MusicLogic (DSP preset) 89...
  • Page 115  0  I n d e x Sine/Sub/Sens controls 32 speakers (continued) Sine/Sub/ Sens menu reviewing connections 50 sources 34 setting up 31 sinewave sweep test 32 specifications 3 soft keys Steered All (DSP parameter) 89, 90, 91 changing layout 52 Stereo (DSP preset) 90 clearing 52 Store settings page 62...
  • Page 116   0 I n d e x UHJ format 88 waterfall plot 71 USB audio input 6, 8 Welcome page 38 user-defined presets 95 Width (DSP parameter) 87, 88, 89 clearing 96 editing name 95 Yaw (DSP parameter) 89, 91...

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