Meridian 556 Manuale utente

Meridian 556 Stereo Power Amplifier

user guide

Preface

Sales and service in the UK

Meridian Audio Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Tel (01480) 52144

Fax (01480) 459934

Sales and service in the USA

Meridian America Inc

3800 Camp Creek Parkway

Building 2400

Suite 112

Atlanta

GA 30331

Tel (404) 344 7111

Fax (404) 346 7111

Designed and

manufactured in the UK by

Digital Gramophone and Wireless Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Gramophone and Wireless Ltd

Part no: 556/1

This guide was produced by

Human-Computer Interface Ltd,

Cambridge, England.

iii

Preface

Contents

Introduction 1

Introduces the 556 Stereo Power

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

Setting up the stereo

power amplifier 7

Describes how to unpack, install, and use

the stereo power amplifier, and explains

what you should do if your amplifier

requires servicing.

Unpacking.............................................. 8

Connecting the stereo power

amplifier ................................................. 9

Troubleshooting ..................................... 12

Maintenance .......................................... 13

Service and guarantee ........................... 14

Index ...................................................... 15

Preface

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 unit in conjunction with the other units in your system.

Introduction

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

your requirements change. The 500 Series is also compatible

with the existing Meridian 200 Series and 600 Series

components, and the new 800 Series.

Each Meridian 500 Series component is housed in a matching

slim line case. Front panel controls provide access to the most

important functions, and the full range of functions is available

from the Meridian System Handset using a simple and intuitive

control interface.

500 Series communications

The Meridian 500 Series includes a sophisticated

communications link, to ensure that any configuration of units

will work together as a fully integrated system.

The 500 Series communications system allows you to control

any combination of units using a single handset, and ensures

that your commands from the handset are interpreted

unambiguously. It also allows all the units to be switched off

from the front panel of any unit in the system.

Professional features

The 500 Series also provides features for professional users,

including RS232 computer control, and balanced connections.

The following pages give examples of four suggested

configurations to illustrate the flexibility of the Meridian 500

Series.

Introduction

Sample configurations

500 Compact Disc Transport

504

500

562

DSP5000DSP5000

A500

504

506 501

556

A500

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 556 Stereo Power Amplifier and A500 Loudspeakers,

with control over the volume and source selection provided by

the 501 Control Unit. The 504 Stereo FM Tuner is an ideal

addition to the system if radio reception is required.

The 500 Compact Disc Transport provides a precision digital

output, and can drive Meridian DSP5000 Digital Loudspeakers

directly.

A 562 Digital Controller can be added to cater for conventional

analogue sources, such as the 504 Stereo FM Tuner, and

provide source selection between up to 12 different analogue or

digital sources.

Introduction

566 20-Bit Digital to Analogue

Converter 502 Analogue Controller

A500

566

500

557

A500

502

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.

The 502 Analogue Controller is a full function preamplifier for use

with any analogue source, and includes balanced inputs to allow

you to take advantage of balanced sources, including the 566

20-Bit Digital to Analogue Converter. It provides balanced

outputs which are ideal for use with the 557 Stereo Power

Amplifier.

Introduction

562V Multimedia Controller

LaserDisc

Video recorder

500 562V

Television

504

Satellite

DSP6000 DSP6000

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

conventional analogue sources such as the 504 Stereo FM

Tuner and video sound.

It also includes video switching for CVBS and S-VHS signals,

such as from a satellite receiver, LaserDisc player, or video

recorder.

Introduction

Specification and accessories

Specification

Input 1.6V RMS.

Output (stereo) Greater than 100W per channel into 8Ω.

Greater than 170W per channel into 4Ω.

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 30VA quiescent, 650VA max.

Meridian Audio reserves the right to amend product

specifications at any time.

Available accessories

The following accessories are available from your dealer:

❍Power cord Europe.

❍Power cord Canada and USA.

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