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Meridian 556 Stereo Power Amplifier
user guide
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Sales and service in the UK Meridian Audio Ltd Stonehill Stukeley Meadows Sales and service in the USA Cambs PE18 6ED Meridian America Inc Designed and England 3800 Camp Creek Parkway manufactured in the UK by Building 2400 Tel (01480) 52144 Suite 112 Digital Gramophone and Wireless Ltd Fax (01480) 459934 Atlanta Stonehill GA 30331 Stukeley Meadows Cambs Tel (404) 344 7111 PE18 6ED Fax (404) 346 7111 England Copyright © 1993–1997 Digital Gramophone and Wireless Ltd Part no: 556/1 This guide was
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Preface Contents Introduction 1 Introduces the 556 Stereo Power Amplifier, and provides an overview of the Setting up the stereo other products available in the Meridian power amplifier 7 500 Series. Describes how to unpack, install, and use The Meridian 500 Series ........................ 2 the stereo power amplifier, and explains Sample configurations ........................... 3 what you should do if your amplifier Specification and accessories ............... 6 requires servicing. Unpacking
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iv Preface
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Introduction In choosing the 556 Stereo Power Amplifier you have acquired a component that combines major advances in audio and engineering design. The 556 Stereo Power Amplifier uses a unique feedback topology and precision local error correction system. It is designed and constructed in dual mono format, including a massive twin wound toroidal transformer, and the unit has full thermal, load, and DC protection. This guide is designed to enable you to obtain the best possible results from the u
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The Meridian 500 Series The Meridian 500 Series is a unique system of digital, analogue, 500 Series communications and video components designed to meet the demand for absolute quality, ease of use, and lasting value. The Meridian 500 Series includes a sophisticated communications link, to ensure that any configuration of units The flexibility of the Meridian 500 Series is such that you can will work together as a fully integrated system. assemble a system as simple or as complex as you need, pe
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Introduction Sample configurations 506 20-Bit CD Player 500 Compact Disc Transport DSP5000 DSP5000 A500 A500 506 501 500 504 556 504 562 The 506 20-Bit CD Player is an integrated CD transport and The 500 Compact Disc Transport provides a precision digital converter, providing both digital and analogue outputs. output, and can drive Meridian DSP5000 Digital Loudspeakers directly. The 506 20-Bit CD Player is ideally suited for use with the Meridian 556 Stereo Power Amplifier and A500 Loudspeakers,
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566 20-Bit Digital to Analogue 502 Analogue Controller Converter A500 A500 500 557 566 502 The digital output provided by the 500 Compact Disc Transport The 502 Analogue Controller is a full function preamplifier for use can be decoded by the 566 20-Bit Digital to Analogue Converter with any analogue source, and includes balanced inputs to allow to provide a high-quality audio output for use with a you to take advantage of balanced sources, including the 566 conventional audio preamplifier. The
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Introduction 562V Multimedia Controller DSP6000 DSP6000 Satellite Video recorder Television 504 LaserDisc 500 562V The 562V Multimedia Controller is the ideal control unit for use conventional analogue sources such as the 504 Stereo FM with the Meridian DSP6000 Digital Loudspeakers. Tuner and video sound. It provides direct digital inputs for digital sources, such as the It also includes video switching for CVBS and S-VHS signals, 500 Compact Disc Transport and LaserDisc sound, together such as
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Specification and accessories Specification Available accessories Input 1.6V RMS. The following accessories are available from your dealer: Output (stereo) Greater than 100W per channel into 8Ω. m Power cord Europe. Greater than 170W per channel into 4Ω. m Power cord Canada and USA. Distortion Less than 0.1%. Noise Less than -100dB. Finish Black textured enamel and glass. Heatsinks black painted aluminium. Dimensions 88mm x 400mm x 320mm (3.45" x 15.7" x 12.6"). Weight 12kg (26 lbs). Consumption
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Setting up the stereo power amplifier This chapter explains how to install the stereo power amplifier. It describes what you should find when you unpack the stereo power amplifier, how you should connect it to your other audio equipment, and the siting constraints. You should not make any connections to the stereo power amplifier or to any other component in your system whilst the AC power supply is connected and switched on.
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Unpacking The 556 Stereo Power Amplifier comes in a box containing the If you are not going to use the stereo power amplifier for a following components: period of several days you should switch the unit completely off, at the back panel, and disconnect it from the AC power supply. m 556 Stereo Power Amplifier. m 1 power cord. To position the stereo power amplifier m This manual. During normal operation the heatsinks, ie the fins at each end of You are advised to retain the packing in case you n
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Setting up the stereo power amplifier Connecting the stereo power amplifier Back panel Input (R) Input (L) OFF INPUT + – – + INPUT + – – + ON Outputs (+) Outputs (-) Outputs (-) Outputs (+) Outputs Alternatively, for loudspeakers providing a single pair of inputs, either of the output terminals can be used. The output terminals should be connected to loudspeakers of 4Ω to 15Ω, using either banana plug or bare wire connections. Each channel of the 556 Stereo Power Amplifier provides twin outputs
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To connect to a conventional To connect to A500 Loudspeakers preamplifier A500 Loudspeaker A500 Loudspeaker l Connect the sockets marked INPUT on the back panel of the stereo power amplifier to the outputs from your preamplifier. You should either use a twin-screened audio cable, or a pair of single-screened audio cables. These cables can have a considerable effect on the quality of the sound, and you are 556 Stereo Power Amplifier advised to seek your dealer’s advice on the best type of cables
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Setting up the stereo power amplifier To bi-wire to A500 Loudspeakers A500 Loudspeaker A500 Loudspeaker 556 Stereo Power Amplifier l If necessary, remove the links bridging the LF and HF terminals on the back of each loudspeaker. l Connect the LF red and black terminals from each loudspeaker to the red and black terminals on the appropriate channel of the stereo power amplifier, using twin loudspeaker cable. l Connect the HF red and black terminals from each loudspeaker to the other pair of red
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Troubleshooting This section describes problems you may encounter when using The 556 Stereo Power Amplifier also includes a power circuit the stereo power amplifier, and includes suggested solutions. breaker to protect the loudspeakers. If these suggestions fail to cure the problem, please contact m Check the system for the cause of the cut out. your Meridian dealer for further assistance. m Switch off, wait 5 seconds, then switch on to reset the power. No front panel indicator is shown m Check
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Setting up the stereo power amplifier Maintenance Cleaning To clean the audio connections When cleaning the stereo power amplifier bear in mind that the The audio sockets on the back of the stereo power amplifier are front of the unit is metal, and the lid is glass. gold-plated and need no cleaning if gold-plated phono plugs are used. Otherwise, it is recommended that you unplug and Disconnect the power cord before cleaning the unit. reconnect the plugs at least once a year. A proprietary contac
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Service and guarantee Service Guarantee The Meridian 500 Series of hi-fi components have been carefully The 556 Stereo Power Amplifier is guaranteed against defects in designed to give years of untroubled service. There are no user- material and workmanship for two years from the date of serviceable parts inside the case, nor do the units require any purchase. form of maintenance. The guarantee is void if the 556 Stereo Power Amplifier has been In the unlikely event that your stereo power amplif
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Index Index A Accessories 6 M Maintenance 13 P Positioning 8 Meridian 500 Series 2 B Bi-wire connection 11 S Service 14 500 Compact Disc Sound has cut out 12 Transport 3, 4, 5 C Cleaning Specification 6 501 Control Unit 3 the audio connections 13 Switching on 8 502 Analogue Controller 4 the case 13 504 Stereo FM Tuner 3, 5 Components 8 T Thermal protection 12 506 20-Bit CD Player 3 Connecting Troubleshooting 12 556 Stereo Power Amplifier 3 to a 501 Control Unit 10 557 Stereo Power Amplifier 4 U
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16 Index
