Meridian 551 Manuel utilisateur
Meridian 551 Integrated Amplifier
user guide
Preface
ii
Sales and service in the UK
Meridian Audio Ltd
Stonehill
Stukeley Meadows
Cambs
PE18 6ED
England
Tel (01480) 52144
Fax (01480) 459934
World Wide Web
http://www.meridian.co.uk
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
Copyright © 1993–1996
Digital Gramophone and Wireless Ltd
Part no: 551/2
This guide was produced by
Human-Computer Interface Ltd,
Cambridge, England.
iii
Preface
Contents
Introduction 1
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
Customising the
integrated amplifier 15
Describes how to set up the integrated
amplifier in your preferred configuration.
Choosing standard settings................... 16
Configuring the sources......................... 18
Examples of configuring the
sources .................................................. 20
Programming levels ............................... 22
Specifying information about
your system ........................................... 24
Using the integrated
amplifier 9
Provides step-by-step instructions on how
to operate the integrated amplifier, using
either the front panel or the Meridian
System Handset.
Front panel............................................. 10
Selecting a source ................................. 11
Adjusting the volume ............................. 12
Changing the display and balance ........ 13
Recording a source................................ 14
Preface
iv
Setting up the integrated
amplifier 25
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 ........................... 34
Index ...................................................... 35
Introduction
In choosing the 551 Integrated Amplifier you have acquired a component
that combines major advances in audio and engineering design. It
combines a full function preamplifier with a high performance power
amplifier.
The preamplifier provides six audio inputs, each of which can be
individually adjusted for sensitivity, and identified on the four-character
alpha-numeric display. A very high quality MC or MM phono stage is
available as an option for the dedicated LP input.
The 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.
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
explains how to unpack and install the integrated amplifier correctly.
2
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.
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 Remote 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 remote, and ensures that
your commands from the remote are interpreted unambiguously.
The communications system also allows you to extend your hi-fi
system into two or three rooms, with the ability to control the
sources in one room from the controller in another room.
Professional features
The 500 Series also includes 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
3
500 Compact Disc Transport
Sample configurations
506 20-Bit CD Player
504
500
562
DSP5000DSP5000
A500
504
506 501
555
A500
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. 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 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.
4
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
5
562V Multimedia Controller
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.
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
6
Introduction
Specification and accessories
Specification
MM input option Sensitivity adjustable 0.5 – 3mV for
5cm/s @ 1kHz.
Overload point 47mV @ 1kHz.
Cartridge load 47kΩ|| 100pF.
MC input option Sensitivity adjustable 38 – 210µV for
5cm/s @ 1kHz.
Cartridge load 220Ω|| 10nF.
A2 – A6 inputs Sensitivity adjustable 27 – 150mV.
Input impedance 20kΩ.
Output 65W per channel into 8Ω.
100W per channel into 4Ω.
Tape output Output 1.5V.
Pre-amp output Output 1.4V rms, 3V rms maximum.
Headphone output 2V maximum.
Distortion Less than 0.05%.
Noise and hum Less than -90dB for high-level
analogue inputs.
Less than -70dB for MM input.
Less than -60dB for MC input.
Display Four character display for current
source, volume, mute, and copy
source.
Communications Two 5 pin 240°DIN sockets.
Finish Black textured enamel and glass.
Heatsinks black painted aluminium.
Dimensions 88mm x 321mm x 332mm
(3.46" x 12.64" x 13.07").
Weight 10kg (20lbs).
Consumption 30VA quiescent, 300VA max.
Meridian Audio reserves the right to amend product
specifications at any time.
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