Meridian 551 User Manual
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Meridian 551 User Manual

Meridian user guide integrated amplifier 551
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Meridian 551 Integrated Amplifier

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Summary of Contents for Meridian 551

  • Page 1 Meridian 551 Integrated Amplifier...
  • Page 2 Designed and manufactured in the UK by Digital Gramophone and Wireless Ltd Stonehill Stukeley Meadows Cambs PE18 6ED England Copyright © 1993–1996 Digital Gramophone and Wireless Ltd Part no: 551/2 This guide was produced by Human-Computer Interface Ltd, Cambridge, England.

  • Page 3: Table Of Contents

    Contents Introduction Introduces the 551 Integrated Amplifier, and provides an overview of the other products available in the Meridian 500 Series. The Meridian 500 Series ... 2 Sample configurations ... 3 Specification and accessories ... 6 Using the integrated amplifier...
  • Page 4 Setting up the integrated amplifier Describes how to unpack and install the integrated amplifier, and explains what you should do if your integrated amplifier requires servicing. Unpacking ... 26 Connecting the integrated amplifier ... 27 Troubleshooting ... 31 Maintenance ... 33 Service and guarantee ...

  • Page 5: Introduction

    This guide is designed to enable you to obtain the best possible results from the unit. If you have just purchased the 551 Integrated Amplifier you should first turn to the chapter Setting up the integrated amplifier, page 25, which...

  • Page 6: Series

    The Meridian 500 Series The Meridian 500 Series is a unique system of digital, analogue, and video components designed to meet the demand for absolute quality, ease of use, and lasting value. The flexibility of the Meridian 500 Series is such that you can assemble a system as simple or as complex as you need, perfectly suited to your musical and environmental requirements, and with the ability to add to it or change it at a later date should...

  • Page 7: Sample Configurations

    Sample configurations 506 20-Bit CD Player The 506 20-Bit CD Player is an integrated CD transport and converter, providing both digital and analogue outputs. The 506 20-Bit CD Player is ideally suited for use with the Meridian 555 Stereo Power Amplifier and A500 Loudspeakers, with control over the volume and source selection provided by the 501 Control Unit.
  • Page 8 566 20-Bit Digital to Analogue Converter The digital output provided by the 500 Compact Disc Transport can be decoded by the 566 20-Bit Digital to Analogue Converter to provide a high-quality audio output for use with a conventional audio preamplifier. The 566 20-Bit Digital to Analogue Converter can also decode digital signals from other sources, including LaserDisc players and Digital Audio Tape.
  • Page 9 562V Multimedia Controller Satellite Video recorder LaserDisc The 562V Multimedia Controller is the ideal control unit for use with the Meridian DSP6000 Digital Loudspeakers. It provides direct digital inputs for digital sources, such as the 500 Compact Disc Transport and LaserDisc sound, together with precision Delta Sigma Analogue to Digital Conversion, for Television 562V...

  • Page 10: Specification And Accessories

    Specification and accessories Specification MM input option Sensitivity adjustable 0.5 – 3mV for 5cm/s @ 1kHz. Overload point 47mV @ 1kHz. Cartridge load 47k || 100pF. MC input option Sensitivity adjustable 38 – 210 V for 5cm/s @ 1kHz. Cartridge load 220 || 10nF. A2 –...

  • Page 11: Available Accessories

    500 Series units in your system. If you have problems purchasing these items, you can order them direct from Meridian Audio Limited, who can also supply a range of cables suitable for connecting the 551 Integrated Amplifier to other equipment.
  • Page 13 Using the integrated amplifier his chapter provides a visual summary of the functions of the integrated amplifier in order to identify the controls which you will use to operate the unit. It also describes how to switch on the integrated amplifier, and use it with your audio sources.

  • Page 14: Front Panel

    Front panel BOOTHROYD STUART Integrated Amplifier Display CD65 Source Copy Spkrs Mute Display 1 Source Selects the source. 2 Copy Copies a selected source to the tape output. 3 Spkrs Mutes the power amplifier. 4 Mute Mutes the sound. 5 Display Blanks the display.

  • Page 15: Selecting A Source

    Press Source (front panel), or select a source by pressing the appropriate source key on the remote: eg CD. If the 551 Integrated Amplifier is part of a Meridian system, it will automatically switch on any other unit in the system, such as the CD player.

  • Page 16: Adjusting The Volume

    Adjusting the volume The 551 Integrated Amplifier allows you to adjust 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 display, and can be varied in the range 1 – 99dB. When you first...

  • Page 17: Changing The Display And Balance

    Source only (full label). Blank. To change the balance You can adjust the sound balance on the 551 Integrated Amplifier using the following procedure. Note: The balance can only be adjusted with the remote. Press < (remote) to move the sound to the left.

  • Page 18: Recording A Source

    Recording a source The 551 Integrated Amplifier allows you to copy any one of the standard sources to the tape outputs, independently of the source you are listening to. To copy a source to the tape output Press Copy. Each time you press Copy the integrated amplifier will step...

  • Page 19: Customising The Integrated Amplifier

    Customising the integrated amplifier his chapter explains how to customise the 551 Integrated Amplifier to your preferred configuration. The simplest way of configuring the integrated amplifier is to choose one of the standard settings, which are designed to cater for the six most common configurations of sources and inputs.

  • Page 20: Choosing Standard Settings

    Choosing standard settings The 551 Integrated Amplifier provides six alternative standard settings, called Types, which configure all aspects of the integrated amplifier into the six most commonly needed configurations. Choosing one of the six standard settings overrides any other configuration you may have performed, and so can be used to reset the configuration of the integrated amplifier.
  • Page 21 Standard settings The following table shows the options configured by the six standard Type settings on the 551 Integrated Amplifier: Type Source Label Radio Tape1 Tape2 Cable Text VCR1 VCR2 Last valid input, displayed as LV. Types 2 and 6 have the same source configuration as Type 1.

  • Page 22: Configuring The Sources

    If the configuration you want is not catered for by one of the standard settings, you can configure each source individually. The 551 Integrated Amplifier provides 12 sources corresponding to the 12 source selection keys on the remote: CD, Radio, LP, TV, Tape1, Tape2, CDR, Cable, Text, VCR1, VCR2, and LD.
  • Page 23 To change an option Press A or V to step between the alternative values for the option. When you have finished programming sources: Switch off at the back panel, and then switch on again to restore normal operation. Option Initial value Label CDCD Audio input...

  • Page 24: Examples Of Configuring The Sources

    Examples of configuring the sources The following examples illustrate how you can configure the source options to your own requirements. To change a source label Display the source you want to configure, together with its current label, as described in the previous sections. For example, to configure the Radio source label choose: Press A or V to step between the alternative labels.
  • Page 25 To set up a system with two CD players Configure the source you are going to use for the first CD player. For example: Source CD, Label C1, Audio input A2, Comms type 1C, Address 1A. Configure the source you are going to use for a second CD player, with a different address.

  • Page 26: Programming Levels

    Programming levels The 551 Integrated Amplifier allows you to program the level of each source independently, to suit your other equipment, so that when you switch between sources the volume stays the same. When you are programming levels the integrated amplifier operates as a preamplifier with a fixed volume setting equivalent to 65.
  • Page 27 Use the A and V keys to change the sensitivity. For example, the display will show: Switch between the source you are changing and the reference source until they sound equally loud. Repeat the procedure for your other sources. When you have finished programming levels, switch the power off and on again to restore the integrated amplifier to normal operation.

  • Page 28: Specifying Information About Your System

    In addition to configuring the sources, and programming their levels, you can configure many other aspects of the operation of the 551 Integrated Amplifier to suit the way your system is set up, and the way in which you want to use it.

  • Page 29: Amplifier

    Setting up the integrated amplifier his chapter explains how to install the 551 Integrated Amplifier. It describes what you should find when you unpack the integrated amplifier, how you should connect it to your other audio equipment, and the siting constraints.

  • Page 30: Unpacking

    Unpacking The 551 Integrated Amplifier comes in a box containing the following components: 551 Integrated Amplifier. 1 power cord. 1 500 Series communications lead. This manual. You are advised to retain the packing in case you need to transport the unit.

  • Page 31: Connecting The Integrated Amplifier

    Connecting the integrated amplifier Back panel COMM Comms connections Audio connections The audio connections should be made using high-quality screened cable, taking care to connect the left and right channels correctly. The following table gives details of the six audio inputs: Headphones Output (R) Output (L)
  • Page 32 The following table gives details of the audio outputs: Use this output To connect to this Right/Left Output Loudspeakers of 4 either banana plug or bare wire connections. Pre-amp Out An additional power amplifier or active loudspeakers. Tape Out Tape recorder output. To connect to a tape recorder Connect the analogue output from the tape recorder to the Tape 1 input on the integrated amplifier (or another input if...
  • Page 33 Use the links provided to bridge the BASS/MID and TWEETER terminals on the back of each loudspeaker. Connect one of each pair of the red and black terminals on the back panel of the 551 Integrated Amplifier to the red and black terminals on the A500 Loudspeakers. A500 Loudspeaker...
  • Page 34 To connect to Meridian 600 or 200 Series equipment If your system includes any Meridian 600 or 200 Series units, with 600 COMMS or 200 COMMS sockets, you should set all the 500 Series units to 200 COMMS operation using the following procedure: Turn off the integrated amplifier, using the power switch on the back panel.

  • Page 35: Troubleshooting

    To change the mains fuse, page 33. The sound has cut out The 551 Integrated Amplifier includes output fuses, which protect the output if the connections are accidentally shorted. Check the output fuses.
  • Page 36 Reorient the receiving aerial (or antenna) or route the antenna cable of the receiver as far as possible from the 551 Integrated Amplifier and its cabling. Ensure that the receiver uses well-screened antenna cable.

  • Page 37: Maintenance

    Maintenance Cleaning When cleaning the integrated amplifier bear in mind that the front of the integrated amplifier is plastic, and the display panel and lid are glass. Disconnect the power cord before cleaning the unit. Note: Do not use abrasive cleaners on any part of the integrated amplifier.

  • Page 38: Service And Guarantee

    The 551 Integrated Amplifier is guaranteed against defects in material and workmanship for 2 years from the date of purchase. The guarantee is void if the 551 Integrated Amplifier has been subject to misuse, accident, or negligence, or has been tampered with or modified in any way without the written authorisation of Meridian Audio Limited.

  • Page 39: Index

    Index Accessories 7 Adjusting balance 13 volume 12 Back panel 27 Balance adjusting 13 centring 13 Balancing input levels 22 CD players, using two 21 Changing the display 13 Cleaning 33 the audio and video connections 33 the case 33 Components 26 Configuration options 200 Series CD player 24...
  • Page 40 20 configuring 18 copying 14 default 11 programming levels 22 recording 14 selecting 11 Specification, 551 6 Standard settings, selecting 16 Standby mode 11 Switching on from standby 11 Switching to standby 11 Tape recorder, connecting to 28 Troubleshooting 31...
  • Page 41 Unpacking 26 Using the integrated amplifier 9 Volume changing 12 display 12 muting 12 restoring 12...

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