Musical Fidelity Class A Integrated Amplifier, A1 User Manual

A1 Integrated

A1 SERIES CLASS A INTEGRATED AMPLIFIER WITH USB INPUT

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity A1 Integrated amplifier.

This new incarnation of the A1 Integrated uses a class A biased output stage to deliver the absolute best in

audio quality with no listener fatigue from crossover distortion artefacts. This results in an astounding

improvement in musicality and tonal neutrality.

The A1 is designed to be partnered with future A1 products, as well as our supercharger range. This offers a

financially lossless upgrade path. As a pure amplifier the A1 is almost perfect. The only limitation, due to
class A operation, is overall power. When you want to upgrade, the A1 is a perfect driver for the 550K or

750K superchargers, and was designed with this in mind. This combination yields one of the best

amplification systems available at any price.

Used properly and carefully, it should give many years of outstanding musical reproduction.

Dust regularly with a soft duster or soft brush, but be careful when using cleaning or polishing agents - they

may harm the surface finish.

If you have any questions about your audio system,

Please consult your dealer who is there to help and advise.

A1 Integrated

CONTENTS

PAGE Section
3

Safety information

- - Mains plug (U.K. only)
Modification warning

4 General advice

- - Installation precautions
User information

5 Disposal information

EU disposal information

-

6 Installation

7 Facilities and connections

8 Remote control

Introduction

-

Cleaning

-

Installation

-

Audio connection

- Illustrations – Main unit front & rear panels

- Operation and illustration

-

9

Amplifier operation

10

Starting, Volume, Mute, Phono, CD,
TUNER, AUX/HT, TAPE, Recording

Computer setup for USB (PC and MAC)

-

11 Amplifier problems?

12 Amplifier specifications

13 Manual history

Issue 2: 05th March 2008

- Basic amplifier fault finding

Page 2 of 13

A1 Integrated

SAFETY INFORMATION

IMPORTANT! (U.K. only)

This unit is supplied in the U.K. with mains lead fitted with a moulded 13 amp plug. If, for any reason, it is necessary
to remove the plug, please remove the fuse holder and dispose of the plug safely, out of reach of children.

It must not be plugged into a mains outlet.

The wires in the mains lead supplied with this appliance are coloured in accordance with the following code:

WARNING - This appliance MUST be earthed

As the colours of the wires of the mains lead of this appliance may not correspond with the
coloured markings identifying the terminals in the plug, proceed as follows:

The wire which is coloured green-and-yellow must be connected to the terminal in the plug which is marked with the
letter E or coloured green or green-and-yellow, or by the earth symbol :

The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red.

The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black.

If connecting to a BS1363 plug, a 13 amp fuse must be used.

WARNING:

ANY MODIFICATIONS TO THIS PRODUCT NOT EXPRESSLY APPROVE D
BY MUSICAL FIDELITY WHO IS THE PARTY RESPONSIBLE FOR
STANDARDS COMPLIANCE COULD VOID THE USER'S AUTHORITY TO
OPERATE THIS EQUIPMENT.

Green and yellow..............Earth

Blue................................Neutral

Brown.................................Live

Issue 2: 05th March 2008

Page 3 of 13

A1 Integrated

GENERAL ADVICE

INSTALLATION PRECAUTIONS & USER INFORMATION

This new A1 is designed and built to provide trouble-free performance, but as with all electronic devices it is necessary
to observe a few precautions:

Heed all warnings shown on the back of the product.

Only connect the A1 to a mains outlet having the same voltage as marked at the back of the unit.

Always ensure that when disconnecting and reconnecting your audio equipment the mains supply is switched
off.

Position the mains lead and signal interconnects where they are not likely to be walked on or trapped by items
placed on them.

Do not use near water, or place water-filled containers on the A1, for example, a flower vase or potted plants.

If water does spill inside, immediately pull out the mains plug from the wall socket and inform your
dealer, who should then check the unit before further use. Entry of liquid into the A1 is dangerous, and
may cause electric shock or fire hazard.

Do not place the unit near direct heat sources such as radiators, direct sunlight or other equipment.

Do not remove any covers or try to gain access to the inside. There are no internal adjustments or fuses you
can replace yourself. Refer all service work to an authorised Musical Fidelity agent.

Note: Unauthorised opening of the equipment will invalidate any warranty claim.

Dust regularly with a soft cloth or soft brush but be careful when using cleaning or polishing agents - they may
harm the surface finish.

The electronics in modern hi-fi equipment is complex and may, therefore, be adversely affected or damaged by
lightning. For protection of the audio system during electrical storms, remove the mains plugs and disconnect any
aerial lead.

If after-sales service is required, to help the dealer identify the A1 please quote the serial number located on the rear
panel of the unit.

Issue 2: 05th March 2008

Page 4 of 13