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Meridian G65 User Manual

Digital surround controller
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Summary of Contents for Meridian G65

  • Page 1 G65 Digital Surround Controller User Guide...
  • Page 2 G65 Digital Surround Controller User Guide...

  • Page 3: Important Safety Instructions

    Preface Important safety instructions • Read the instructions. To avoid overheating • Keep these instructions. • Leave at least 10cm around the equipment to ensure • Follow all instructions. sufficient ventilation. • Do not use this apparatus near water. • Clean only with a dry cloth.

  • Page 4: Table Of Contents

    The G65 Digital Surround Controller Communications connections DSP presets and layouts Specifications Configuring the G65 Digital Surround Controller Using the G65 Digital Surround Controller Configuration Wizard Operating your G65 Stage 1: Resetting the product Using the MSR+ Stage 2: Configuring speakers...
  • Page 5 MHR: this product incorporates copyright protection PE29 6YE technology covered by certain patent applications England and intellectual property of Meridian Audio Ltd. This Tel (01480) 445678 technology is provided for the express purpose of Fax (01480) 445686 securely containing copyright audio within the Meridian System only.

  • Page 6: Introduction

    Introduction Introduction Welcome to the Meridian G65 Digital Surround Controller. This User Guide provides full information about using the surround controller in conjunction with your other equipment, to achieve the superb results you can expect from it.

  • Page 7: The G65 Digital Surround Controller

    At the heart of the G65 is a powerful DSP engine encrypted high-resolution digital signals from all copy- consisting of five Freescale 56367s running at protected media –...

  • Page 8: Dsp Presets And Layouts

    DSP presets and layouts Introduction The G65 provides an extensive range of options for Special presets for two-channel decoding and processing analogue and digital signals materials for multichannel reproduction. Direct uses only the left and right speakers; compare Music on CD or radio this with the effect of surround processing using the other modes.
  • Page 9 The surround controller provides great flexibility in the way in which you use the loudspeakers in your system. With the Meridian Configuration Program you can specify three different speaker layouts, each with a different use of subwoofers and centre speaker:...

  • Page 10: Specifications

    Control signals • 1 12VDC/100mA trigger output configurable by source. • 2 Meridian Comms 5-pin 240º DIN sockets. • USB and RS232 interfaces for maintenance. • 5 Freescale 56367s running at 150MHz to give a total of approximately 750MIPS. 48-bit arithmetic throughout.
  • Page 11 Introduction...

  • Page 12: Using The G65 Digital Surround Controller

    Surround Controller to identify the controls which you use to operate the unit. It gives information about switching your G65 on and off, using the soft keys, and changing the display format. It also provides instructions for operating the digital surround controller,...

  • Page 13: Operating Your G65

    Using the G65 Operating your G65 Digital Surround Controller Volume control Display Display Digital Surround Controller G65 Home More On Off On/Off More Home Soft keys The five soft keys under the display make the G Series To select a command products particularly easy to use.

  • Page 14: Using The Msr

    Using the MSR+ Using the G65 Digital Surround Controller You can control all of the functions of your G Series down the Function key in the lower left corner and products using either the front-panel controls, or the press the key.

  • Page 15: Switching On And Off And Selecting A Source

    The soft keys revert to the Home set in standby, even controller for several days you should switch the unit off though the display is blank, so the G65 can also be completely at the rear panel, and disconnect it from the turned on by pressing one of the first four soft keys.

  • Page 16: Adjusting The Volume

    Adjusting the volume Using the G65 Digital Surround Controller The G65 Digital Surround Controller adjusts the volume To restore the sound in precise steps of 1dB, where 9dB is equivalent to • Press the volume control again, or press Mute on doubling the loudness.

  • Page 17: Changing The Dsp Preset

    Using the G65 Changing the DSP preset Digital Surround Controller Each source has a set of DSP presets associated with To change the DSP preset it, one for each of the alternative content types: Music • Press DSP (front panel or remote) to step between 2 (2-channel music), Music 6 (multichannel music), the different DSP presets.

  • Page 18: Changing The Display

    Changing the display Using the G65 Digital Surround Controller The G65 Digital Surround Controller displays To change the displayed information information about the current settings on the front- panel display. • Press Display (front panel or remote). You can adjust the brightness of the front-panel display...
  • Page 19 Using the G65 Digital Surround Controller...

  • Page 20: Customising The G65 Digital Surround Controller

    Customising the G65 Digital Surround Controller In addition to being able to change the source, volume, and DSP preset, the G65 Digital Surround Controller provides a sophisticated range of more advanced adjustments for each DSP preset, to allow you to tailor the sound.

  • Page 21: Locking And Unlocking The Menus

    Customising the Locking and unlocking the menus G65 Digital Surround Controller To simplify the normal operation of the digital surround controller, and to protect the settings from accidental changes, you can lock the menus so that the DSP parameters cannot be accessed.

  • Page 22: Changing The Dsp Parameters

    +0.0dB The bass response. Phase* + or - The absolute phase. Axis -2 to +3 The vertical balance (only available with Meridian DSP loudspeakers). Balance <10 to 10> <0> The L-R balance. HS Out?* Y or N Select Y for high-rate audio, upsampled if necessary. Select N for standard-rate audio, downsampled if necessary.
  • Page 23 Customising the G65 Digital Surround Controller To change a DSP parameter • Make sure the menus are unlocked; see To unlock the menus , page 16. • Press More to display the menu keys. , or Function • Press on the MSR+, <...

  • Page 24: Changing Treble, Bass, Or Phase

    To change the absolute phase If you have a Meridian DSP Loudspeaker the • Press > or < until the display shows the current Treble and Bass settings apply to all DSP presets.

  • Page 25: Changing The Listening Position

    • Press < or > until the display shows the current axis speakers. The G65 Digital Surround Controller provides setting. a more sophisticated adjustment which corresponds to moving the listening position to the left or right.

  • Page 26: Changing The Integration Of The Centre

    Changing the integration of the centre Customising the G65 Digital Surround Controller If you have a centre loudspeaker you can adjust its You can change the depth between -2.5ms, which relative loudness, to provide the best integration of the corresponds to moving the centre speaker 0.75m centre with the main left and right speakers.

  • Page 27: Changing The Spaciousness Of The Sound

    Customising the Changing the spaciousness of the sound G65 Digital Surround Controller You can adjust the spaciousness of the sound by altering the delay on the rear and side channels. Note: These adjustments are not available for the Direct, Stereo, or Mono presets.

  • Page 28: Speakerlink Controls

    Connect to the DSP loudspeakers via the SpeakerLink connection. • Enable the SpeakerLink controls using the Meridian Configuration Application (see Installing the Meridian Press up or down to select between Off, Min, Med, Configuration Application, page 53), or via the or Max.

  • Page 29: Changing The Lipsync

    To adjust the LipSync The LipSync parameter is a feature originated by Meridian that allows you to adjust the delay between the sound and the video image by up to 50ms, or up to 85ms if Meridian Room Correction is not being used.

  • Page 30: Changing The Dsp Preset For A Source

    Changing the DSP preset for a source Customising the G65 Digital Surround Controller Each source has an appropriate DSP preset associated with it for each music format. For example, for a standard stereo (PCM) signal the CD source uses Trifield and the TV source uses TV Logic.

  • Page 31: Defining Your Own Presets

    Customising the Defining your own presets G65 Digital Surround Controller The G65 Digital Surround Controller allows you to Alternatively press V to choose the built-in preset you modify any of the built-in presets, and save them for started with. For example: future use.
  • Page 32 Customising the G65 Digital Surround Controller To clear a user-defined preset • Make sure the menus are unlocked; see To unlock the menus , page 16. • Press DSP (front panel or remote) to select the preset you want to clear.
  • Page 33 Customising the G65 Digital Surround Controller...

  • Page 34: Installing The G65 Digital Surround Controller

    Installing the G65 Digital Surround Controller Installing the G65 Digital Surround Controller This chapter explains how to install the digital surround controller. It describes what you should find when you unpack the product, and how you should connect it to the other equipment in the system.

  • Page 35: Unpacking

    Installing the G65 Unpacking Digital Surround Controller The G65 Digital Surround Controller is supplied with the following accessories: • MSR+ remote control with batteries, manual, and spare key caps. • Meridian Comms lead. • Power cord. • This manual. If any of these items are missing please contact your dealer.

  • Page 36: Audio Inputs

    MMHR (DVD) The multichannel digital output of a Meridian HD621 HDMI Audio Processor. SpeakerLink inputs SL1 (Aux), SL2 The SpeakerLink output of a Meridian source, such as the 808 Signature Reference CD Player. Digital Input D1 (CD), D2, D3 (Disc), D4, The digital output of a source such as a G07 24-bit CD Player or DAB tuner.
  • Page 37 COMMS Digital coax lead Meridian Comms lead You can connect up to six digital coax sources to the If the source is a Meridian product connect together the G65 Digital Surround Controller. Comms sockets using the Comms lead provided. •...
  • Page 38 Meridian Comms lead MMHR Lead The G65 provides an MMHR multichannel input which can be used with the HD621 HDMI Audio Processor. • Connect the MMHR output from the HD621 to the MMHR input on the G65, using an MMHR lead.
  • Page 39 Installing the G65 Digital Surround Controller To connect to a source with analogue multichannel outputs (eg SACD player) SACD player G65 Digital Surround Controller ANALOGUE OUT A1-A3 DIGITAL DIGITAL Phono leads Digital lead Analogue inputs A1 to A3 can be used as a multichannel input from a source with a suitable analogue multichannel output, such as an SACD player.

  • Page 40: Audio Outputs

    Use this output To connect to this SpeakerLink Output L+R, C+Sub, Digital loudspeakers, using Meridian SpeakerLink leads or standard CAT5 Side L+R, Rear L+R network cables. Connect the master speaker to the appropriate socket on the lower row. Connect the slave speakers to the other sockets as shown in the following diagrams.
  • Page 41 Left, Right, Centre, and Surround; see Meridian DSP Loudspeaker User Guide SpeakerLink lead. for more details. • Connect the appropriate SpeakerLink outputs on the G65 to one of each of the remaining pairs of speakers, using a Meridian SpeakerLink lead.
  • Page 42 Installing the G65 Digital Surround Controller To connect the G65 to Meridian DSP loudspeakers (home run) Front R – Slave G65 Digital Surround Controller Front L – Master SPEAKERLINK MERIDIAN MERIDIAN SPEAKERLINK SPEAKERLINK INPUT OUTPUT INPUT OUTPUT SpeakerLink lead SpeakerLink lead Centre –...
  • Page 43 Installing the G65 Digital Surround Controller To connect to passive loudspeakers powered by a Meridian G55 Rear Right Speaker Rear Left Speaker Front Left Speaker Centre Speaker Front Right Speaker Loudspeaker Loudspeaker leads G55 5-Channel Power Amplifier leads ANALOGUE ANALOGUE...
  • Page 44 The subwoofer crossover can be set from • Use Side/Sub Left and Side/Sub Right if you have the front panel of the G65; see Subwoofer crossover two subwoofers. frequency , page 61. If the subwoofer does not have a direct input, or a...

  • Page 45: Communications Connections

    Power & fuse Use this connector To connect to this DIN COMMS Other Meridian G Series, 500 Series, or 800 Series equipment, or Meridian DSP loudspeakers. RS232 connection A computer, for configuring the digital surround controller. USB connection A computer, for configuring the digital surround controller.
  • Page 46 Installing the G65 Digital Surround Controller To connect to other Meridian G Series or 800 Series equipment G65 Digital Surround Controller G Series or 800 Series unit MERIDIAN MERIDIAN COMMS COMMS Meridian Comms lead In a system of Meridian products the products should...
  • Page 47 Installing the G65 Digital Surround Controller...

  • Page 48: Configuring The G65 Digital Surround Controller

    This chapter explains how to configure the digital surround controller using the Configuration Wizard. Alternatively, for complete control over all aspects of the product’s configuration you can set up the unit from a computer using the Meridian Configuration Program; see Installing the Meridian Configuration Program , page 53.

  • Page 49: Configuration Wizard

    Configuring the G65 Configuration Wizard Digital Surround Controller The Configuration Wizard leads you through the At any stage in the Configuration Wizard the following correct sequence to configure your digital surround options are available: controller. Alternatively, you can skip between the...

  • Page 50: Stage 1: Resetting The Product

    Stage 1: Resetting the product Configuring the G65 Digital Surround Controller The digital surround controller provides several When you have selected the Type you want: alternative standard settings, called Types, which Either: configure all aspects of the product into the most commonly needed configurations.
  • Page 51 LFE subwoofer is only active in multichannel presets. Mono and Centre Subwoofers are active in all presets. Note that any Types stored using the Meridian Configuration Program will also be available in this list; see the Installing the Meridian Configuration...

  • Page 52: Stage 2: Configuring Speakers

    Stage 2: Configuring speakers Configuring the G65 Digital Surround Controller The Speakers configuration stage allows you to set When you have stepped through all the speaker options up the digital surround controller for the particular the display shows: arrangement of loudspeakers in your system.
  • Page 53 Configuring the G65 Digital Surround Controller Speaker options The following table summarises the speaker options: Option Values Description Number of Subwoofers: none, one, two, three How many subwoofers. The main L&R speakers small analogue/THX, small DSP, The types of the main left and right speakers. If you have...

  • Page 54: Stage 3: Configuring Sources

    Stage 3: Configuring sources Configuring the G65 Digital Surround Controller The digital surround controller provides up to 12 The top line of the display shows a description of each sources corresponding to the 12 source keys on the option, and its current value is shown to the right of the MSR+: source name.
  • Page 55 Trigger #1: High, Low, Last Valid Trigger outputs for the source. Comms Type: CD 1C, Tuner 2C, DVD 3C, Sooloos Set to NC unless the source is a Meridian or Sooloos product. 5C-8C, No Comms NC Comms Address: 1A-8A Allows you to have up to eight of each source type.

  • Page 56: Stage 4: Configuring Other Settings

    Stage 4: Configuring other settings Configuring the G65 Digital Surround Controller The next stage allows you to configure other aspects of To calibrate the system the product’s operation. When you have finished configuring the settings: To configure other settings Press Next to proceed to calibrating the system, as •...
  • Page 57 Whether the soft keys revert to the home keys after a delay. Diagnostic displays: on, off Whether diagnostic displays are shown. Is the G65 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 58: Installing The Meridian Configuration Application

    Controller The Meridian Configuration Application is a Windows Installation program that allows you to configure the G65 Digital To install the application you will need a computer that Surround Controller, together with any other Meridian is connected to the Internet.
  • Page 59 Configuring the G65 Digital Surround Controller...

  • Page 60: 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 G65 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 61: Introduction

    Configuring the G65 Introduction Digital Surround Controller We recommend that you perform the calibration procedure using the MSR+ and from the listening position. As you run the calibration procedure the name of each calibration test is shown on the front-panel display, followed by the parameters adjusted in the test.
  • Page 62 Configuring the G65 Digital Surround Controller To start the calibration procedure To exit from the calibration procedure Either: You can exit from the calibration procedure at any time, and any parameters you have set will be retained: Press Next on the last option of configuring settings;...

  • Page 63: Calibration Tests

    Measure from ear height at the listening position to the tweeter on each speaker (where applicable), in the If you have Meridian DSP loudspeakers they cannot be distance units you have chosen; see Settings , page 52. set above +0dB.
  • Page 64 Configuring the G65 Digital Surround Controller Fine tuning These tests allow you to fine-tune the phase and delay of each speaker when used in conjunction with other speakers on the layout. • Use > and < to move between each of the speakers in the layout.

  • Page 65: Speaker Size

    Configuring the G65 Speaker size Digital Surround Controller 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 66: Using The Sine/Sub/Sens Controls

    Select a source and press More until the bottom line bass handling down to, say, 50Hz. of the display shows: Sinewave sweep test The G65 includes a sinewave signal test, to help you set the subwoofer crossover frequencies, or check for • Press Sine/Sub/Sens.
  • Page 67 Configuring the G65 Digital Surround Controller To select the channel You can select between the following inputs: • Press Chan. Option Description You can select any individual channel, or All Input The current input. Channels. Sine A sinewave. Noise Pink noise, band pass 500Hz to 2kHz for To change the sweep rate main channel.
  • Page 68 Configuring the G65 Digital Surround Controller To adjust the source input sensitivity This section explains how to use the Sine/Sub/ Sens controls to adjust the sensitivity of the analogue sources. To obtain the best signal-to-noise ratio for each analogue source you can adjust its sensitivity to give the highest level that does not produce clipping.
  • Page 69 Configuring the G65 Digital Surround Controller...

  • Page 70: Dsp Presets

    DSP presets This chapter gives technical information about each of the DSP presets built in to the G65 Digital Surround Controller, including information about which preset you should select for different types of material. It also gives details of the special DSP parameters available for each...

  • Page 71: Dsp Presets For Two-Channel Material

    The mono element is equalised using a proprietary Surr. All and rear speakers. Meridian technique to match the tone colour of the R Filter Off, 1kHz, The cutoff of high centre speaker, and to compensate for the fact that the...
  • Page 72 DSP Presets Ambisonic surround sound is quite unlike conventional Ambisonics and Super DSP preset stereo. A special microphone can be used to capture parameters the sound of the original performance in all three dimensions, allowing a recording to be made in a Parameter Options What it changes...
  • Page 73 Steered Side, surround channels are compared with the original Pro Logic decoding. Steered All generated by steering. Meridian’s implementation of Pro Logic IIx uses proprietary code based on 48-bit precision to give Width 0 to 7 The centre spread, outstanding clarity.
  • Page 74 DSP Presets PLIIx Movie and PLIIx THX DSP preset If Party? is set to No, the combined or selected signal is played only through the centre speaker, or the left parameters and right speakers if there is no centre, to centrally localise high-frequency hiss and clicks.

  • Page 75: Dsp Presets For Multichannel Material

    Discrete and Cinema DSP preset encoded data streams (such as Dolby Digital) or as parameters discrete channels from a DVD player. If you are using Meridian SmartLink then all formats will reach the G65 Parameter Options What it changes as discrete channels. With suitable loudspeakers the 2+2+2* Off, 5.1,...
  • Page 76 DSP Presets performance of THX Ultra2 Cinema and THX Music is produced when the two rear speakers are placed As with the PLIIx THX DSP preset, THX re-equalises close together behind the listening position. THX Ultra2 the signals to suit domestic listening conditions, and Cinema is recommended for movie soundtracks that applies frequency-response correction and decorrelation are not Dolby Surround EX encoded, and THX Music is...
  • Page 77 DSP Presets Using dynamic range control Dialogue Normalisation display If the input format is Dolby Digital, the 5.1 Movie DSP Dolby Digital audio streams include Dialogue presets provide an additional Compress parameter Normalisation and Mix levels, to specify the to allow you to take advantage of the dynamic range recommended listening level of the soundtrack.

  • Page 78: Troubleshooting

    If, however, you encounter any problems, either when installing and configuring it, or during operation, please check the following pages for suggested solutions. If these suggestions fail to cure the problem, please contact your Meridian dealer for further assistance.

  • Page 79: General Operating Problems

    Select a six-channel soundtrack, if it is available. If the light still does not illuminate, check any fuses in your power supply and the fuse in the inlet of the G65. Unit is overheating If these are all intact, contact your dealer.

  • Page 80: Audio Problems

    • If the G65 seems to be the cause of hum consult For comparison, analogue sources are likely to be of your dealer. the order of: •...
  • Page 81 There is a hiss when starting DTS LaserDiscs or CDs The DTS audio stream is indistinguishable from a PCM audio stream; the G65 takes 30ms to identify the encoding, during which a hiss is heard. • With non-video DTS sources you can add a 30ms delay to avoid this.

  • Page 82: Maintenance

    • Disconnect the power cord before cleaning the unit. The exterior surfaces of Meridian G Series products are made from solid anodised aluminium, powder coated steel, thermoplastic rubber, and glass. They are designed to be easily wiped clean with a dry, lint free cloth.

  • Page 83: Service And Guarantee

    In case of difficulty outside the UK or USA, contact invalidate this guarantee. Labour and carriage charges the importing agent for the territory. A list of Meridian are not covered unless by local agreement. agents outside the UK is available from Meridian Audio.

  • Page 84: Index

    Index Index Centre (DSP parameter) 17, 21, 66 Direct (DSP preset) 68 Centre Elevation control 23 Discrete (DSP preset) 70 Academy (DSP parameter) 69 centre loudspeaker display accessories 30 changing the relative delay 21 brightness 13 active subwoofer, connecting to 39 changing the relative level 21 information 13 Ambisonics (DSP preset) 66, 71...
  • Page 85 77 PLIIx Music (DSP preset) 68 Home soft keys 8 menus, locking 16 PLIIx THX (DSP preset) 68 HS Out? (DSP parameter) 17 Meridian Configuration Application presets defining 26 mic input 31 multichannel 70 Input (DSP parameter) 69...
  • Page 86 Index rear loudspeakers speaker layouts 4 2+2+2 (DSP parameters) 70 changing the relative delay 22 5.1 Movie 70 Types 45, 46 changing the relative level 20 Logic 66 R Filter (DSP parameter) 66, 67, 70 Music 66 Roll (DSP parameter) 67, 69 SpeakerLink UHJ format 66 room correction 2...
  • Page 87 Index...

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