Musical Fidelity Nu-Vista M3 Manuel utilisateur

Nu-Vista M3Instructions for Use. Page 1

of 10

INTRODUCTION

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity

Nu-Vista M3super integrated amplifier with remote control.

The Nu-Vista M3is based on the combination of the world

famous Nu-Vista preamplifier and the legendary Nu-Vista

NV300 power amplifier.

Used properly and carefully, it should give you many

years of outstanding musical reproduction.

The Nu-Vista M3operates in Class A/B which in

our experience offers the ultimate in

musical accuracy and pleasure.

For the best results Nu-Vista interconnects and

loudspeaker cables should be used.

Dust regularly with a soft duster or soft brush but be

careful using cleaning or polishing agents - they may

harm the surface finish.

If you have any questions about anything in your

audio system, please consult your dealer who is there to

help and advise you.

issue 1/26.10.2000

SUPER INTEGRATED AMPLIFIER

Nu-Vista M3Instructions for Use. Page 2

of 10

SAFETY

INFORMATION

IMPORTANT!

This unit is supplied in the U.K. with a mains lead fitted with a moulded 13 amp plug.

If, for any reason, you need to cut off this plug, please observe the following safety precautions.

Please dispose of the cut-off plug safely. It must not be plugged into a mains power supply.

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

with the following code:

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

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

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

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 your 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 - Radio Frequency Interference (RFI)

This hi-fi product has been tested to ensure that its operation will not be adversely affected by

normal background levels of RFI. It is possible that if this product is subjected to abnormally

high levels of RFI the unit may be susceptible and not perform as expected. In the unlikely

event of this happening on a regular basis, please contact Musical Fidelity's service department.

The unit has also been tested to ensure that it does not radiate excessive levels of RFI that could

affect other pieces of electronic or electrical equipment.

The electronics in modern hi-fi equipment is complex and hence may be damaged by lightning.

It is possible that during electrical storms the operation of some equipment may be adversely

affected. For complete protection of your hi-fi system during such storms, mains plugs and aer

ial leads should be disconnected.

Always ensure that when disconnecting and re-connecting your hi-fi equipment the mains

supply is switched off.

issue 1/26.10.2000

Nu-Vista M3Instructions for Use. Page 3

of 10

GENERAL ADVICE

issue 1/26.10.2000

INSTALLATION PRECAUTIONS and USER INFORMATION

Your new Nu-Vista M3is 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 on the back of the unit.

Only connect the preamplifier to a mains outlet of the voltage marked on the back of the

unit.

The Nu-Vista M3will operate in accordance with its specifications as long as the environ-

mental conditions are kept in the following ranges:-

Temperature 5 to 45 degrees Celsius

Humidity 10 to 90% non condensing

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. The unit shall not be exposed to dripping or splashing and no

objects filled with liquids, such as vases, shall be placed on the unit.

Do not place the unit near direct heat sources such as radiators or other equipment that

produces heat.

Do not place the unit where it can be subjected to direct sun-light.

Do not remove any covers or try to gain access to the inside. The warranty is invalid if

the unit has been tampered with. There are no user adjustments within. Refer all service

work to an authorised Musical Fidelity agent.

Dust regularly with a soft duster or soft brush but be careful when using cleaning or

polishing agents -they may harm the surface finish.

There are fuses in the unit. In the unlikely event that one blows, take your unit to your

audio dealer. Do NOT try to replace the fuse yourself or you will invalidate the warranty.

No naked flame sources, such as lighted candles, should be placed on the unit.

Keep out of reach of children.

For battery disposal, refer to the manufacturers instructions.

Important! Unauthorised opening of the equipment will invalidate any warranty claims.

Note: To help your dealer identify your amplifier if after-sales service is required, please quote

the serial number located on the rear panel of the unit.

Nu-Vista M3Instructions for Use. Page 4

of 10

CONNECTIONSAND

FACILITIES

9 10 11 12 13 14 15 16 17 18

19 20 21 22

Nu-Vista M3front panel layout

1Volume control

2Left Preamp power LED

3Left PSU LED

4Tape monitor button

5Infra red receiver lens

6Right PSU LED

7Right Preamp power LED

8Input select control

Nu-Vista M3back panel layout

9RIGHT speaker outputs

10 PREAMP output

11 TAPE RECORD output

12 TAPE input

13 AUX input

14 Tuner input

15 SACD input

16 CD input

17 Phono input

18 LEFT speaker outputs

19 Right power amp PSU input

20 Preamp PSU input

21 Phono earth terminal

22 Left power amp PSU input

1 2 3 4 5 6 7 8

issue 1/26.10.2000

Nu-Vista M3Instructions for Use. Page 5

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CONNECTIONS AND

FACILITIES

6 7 8 9

3 4 5

1 2

Nu-Vista M3PSU front panel layout

1Mains on/off switch

2Power LED

Nu-Vista M3PSU back panel layout

3Right power amp PSU output

4Preamp PSU output

5Left power amp PSU output

6Right power amp PSU fuse

7Preamp PSU fuse

8Left power amp PSU fuse

916A mains inlet

issue 1/26.10.2000

P O W E R S U P P L Y U N I T

CONNECTIONS

Nu-Vista M3Instructions for Use. Page 6

of 10

WARNING

THE NU-VISTA M3IS A POWER-

FUL AMPLIFIER AND IS

DESIGNED TO SUPPLY HIGH

VOLTAGES AND HIGH CUR-

RENTS THROUGH THE LOUD-

SPEAKER TERMINALS.

THEREFORE TO AVOID ANY

POSSIBILITY OF AN ELECTRIC

SHOCK DO NOT TOUCH THE

SPEAKER TERMINALS WHEN

THE UNIT IS BEING USED.

issue 1/26.10.2000

CONNECTIONS

All connections should be made with the

power OFF, i.e. before the mains lead is

plugged in and the unit switched on.

PSU to Amplifier Connections

The Nu-Vista M3is supplied with 2 com-

plete sets of power supply connecting leads.

One of the sets is 0.7M long the other 1.2M

long. Choose the length that best suits your

installation.

The two power amplifier PSU leads are

identical.

a) One of these leads connects the right

PSU output to the right PSU input on the

amplifier.

b) The other one connects the left PSU

output to the left PSU input on the

amplifier.

Push the connectors into the sockets and

twist until they click in to place.

c) The third lead in each set is to con-

nect the preamp PSU output to the preamp

PSU input on the main amplifier. Push the

connectors into the sockets.

How to connect your Nu-Vista M3for

Normal Stereo use.

LINE LEVEL I/P CONNECTION

The Nu-Vista M3has 5 line level inputs -

CD, Tuner, Aux, SACD, and Tape.

and 1 phono input which can be used for

moving magnet (MM) cartridges.

All line level inputs are electrically identi-

cal and are suitable for use with any source

component with an output voltage in the

hundreds of millivolts (mV). This

includes CD players, Super Audio CD

players (SACD), tuners, tape machines and

the audio outputs of video recorders, tele-

visions, DVD and LaserDisc players etc.

Connect the Left and Right outputs from

your line level sources to the line level

inputs on the back panel.

For the best results we recommend that

you use Musical Fidelity Nu-Vista inter-

connect cables for this connection.

PHONO CONNECTION

The Nu-Vista M3has a phono input for

turntables fitted with a moving magnet car

tridge (MM).

Some turntable/pick-up arm combinations

are fitted with an extra wire called a chas-

sis earth, which should be connected to the

gold terminal on the back of the amplifier.

SPEAKER CONNECTION

Connect your loudspeakers to the loud-

speaker terminals situated on the back

panel marked as Left and Right

Loudspeaker Outputs. We recommend that

you use Musical Fidelity Nu-Vista O.C.C

speaker cables for this connection.

MAINS CONNECTION

Once these connections are made, plug in

the 16A IEC type mains lead supplied with

the unit.

OPERATION

Nu-Vista M3Instructions for Use. Page 7

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BEFORE YOU SWITCH ON

You should make all connections to the

Nu-Vista M3before switching on.

Follow this routine before you listen for

the first time, and each time you change

any connections.

1Check all the input and output con-

nections to and from the Nu-Vista

M3.

2Then check again.

3Turn the volume control to

minimum.

SWITCHTING ON

1Now you can switch on the power

using the mains switch situated on

the front of the PSU. There are

heavy duty relays in the PSU and

when the unit is first turned on these

will operate.

2All 4 PSU LEDs should light on the

amplifier’s front panel.

If for any reason one of the LEDs

does not light, switch the unit off and

check the connecting leads between

the PSU and the amplifier.

3After approx. 20 seconds the

Nuvistas will have heated up and the

mute will switch off automatically.

4You can now and carefully advance

the volume to the level you want and

enjoy the music.

issue 1/26.10.2000

REMOTE CONTROL

The Nu-Vista M3features Infra Red

remote control of volume, input selection

and mute functions via the supplied remote

control handset. The Infra Red receiver is

the small red lens marked I.R.Receiver. sit-

uated on the front panel. It is important to

ensure that when operating the remote con

trol, the line-of-sight from the remote to

the infra red receiver is not obstructed.

Pressing the volume up or down buttons on

the remote handset will advance the

motorised volume control in the desired

direction.

Input selection can also be controlled with

the remote handset.

Pressing the mute button on the remote

handset mutes the output. Press the mute

button again to switch the mute off.

OPERATION

Nu-Vista M3Instructions for Use. Page 8

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TAPE RECORDING

The Nu-Vista M3has a single tape circuit

with facilities for off-tape monitoring with

3-head cassette decks.

Connection of your tape machine to the

Nu-Vista M3should be as follows. The

tape machine's Tape/Line outputs go to the

Nu-Vista M3's 'Tape' input sockets.

The tape machine's Tape/Line inputs go to

the Nu-Vista M3's 'Tape Record' output.

To record, simply select the required

OFF TAPE MONITORING

In conjunction with a 3-head cassette deck,

off-tape monitoring allows the user to

compare the recorded to original sound

whilst a recording is made. To do this,

first select the required source in the nor-

mal way and start recording. The Tape

Monitor button on the front panel can now

be used to switch between the source sig-

nal and the recorded signal allowing direct

comparison.

When the tape monitor button is in then

tape monitor is selected.

Note that tape (the recorded signal) is

selected when the button is in. On some

3-head cassette decks there is an additional

'tape/source' switch which will need to be

in the 'tape' position for the above to work

If you are in any doubt consult your tape

machine's manual.

issue 1/26.10.2000

PREAMP OUTPUT

The Nu-Vista M3has a permanently

active preamp output situated on the back

panel. This provides extra flexibility for

use in multi-room or surround-sound sys-

tems etc. This signal comes from the Nu-

Vista M3's internal preamp and its output

level is thus controlled by the front panel

volume control.

This output allows easy connection to an

other power amplifier for bi-amping appli-

cations.

To bi-amp (which requires bi-wireable

speakers) an extra amplifier/amplifiers is

attached to this permanent preamp output.

The Nu-Vista M3's built in power amps

can then for instance drive the left and

right channel bass units.whilst a pair of X-

A200s (for example) drive the left and

right channel tweeters

Passive bi-amping in this way can give

noticeable gains in clarity, imaging and

bass weight.

If you would like further details please

contact your dealer or Musical Fidelity

directly.

source with the source selector button on

the front panel. The selected source will

now be sent to the 'Tape Record' output for

recording by the attached tape machine.

You will also be able to hear the selected

source through the loudspeakers.

Note - you can adjust the listening level

with the volume control without affecting

the recording level.

Nu-Vista M3Instructions for Use. Page 9

of 10

TROUBLESHOOTING

Basic troubleshooting of an amplifier is similar to troubleshooting of any other electrical or

electronic equipment. Always check the most obvious possible causes first. To give you a few

ideas of what to look for, check the following:

If none of these actions effect a cure, please contact your dealer, or an authorised Musical

Fidelity service agent. Remember, never open the case of the Nu-Vista M3

yourself, as this will

invalidate the guarantee.

issue 1/26.10.2000

Problem Probable Cause Remedy

No power when POWER

is pressed

Mains plug not inserted

correctly

Plug in securely

One or more LEDs does

not light when power is

pressed

PSU to Amplifer leads not

connected correctly

Check Connections

No sound

Volume control is set

to minimum

Turn up the volume

Wrong input selected

Select correct input

Mute is selected

Press mute button on

remote control

Unit has not yet come out

of power-up mute

Wait 15-20 seconds on

power-up for unit to

un-mute

Tape Monitor button is

depressed

Press Tape monitor

button

Remote control unit will

not operate

POWER switch set to OFF

Set switch to ON

Batteries not inserted in

remote control unit

Insert batteries

Batteries flat

Change batteries

Remote control not pointed at

IR receiver lens

Ensure line of sight

between remote control

and IR receiver lens is not

obstructed

Range of remote control

has dramatically reduced

Batteries running out

Change batteries

Power Output 250 watts per channel into 8 Ohms

THD (Typically) < 0.007% at 1KHz

< 0.003% at 1KHz (‘A’ weighted)

Frequency response (Typically) 20Hz - 60KHz +0.25 / -3dB

Inputs 1 phono 5 line level

Outputs Speaker outputs, Tape out, Preamp out.

Input sensitivity (line inputs) 300mV (for full output)

Input sensitivity (MM input) 3.5mV (for full output)

Input impedance (line inputs) 100KOhm

Input impedance (MM input) 47KOhm

S/N Ratio (line inputs) (Typically) 102dB ‘A’ weighted

S/N Ratio (MM) (Typically) 83dB ‘A’ weighted

Power consumption 1200W

Power requirements 100/115/230V AC 50/60Hz

(Factory preset)

Dimensions Amplifier 482 x 145 x 470mm (W x H x D)

Height includes feet, Depth includes terminals

PSU 365 x 145 x 250mm (W x H x D)

Height includes feet, Depth includes terminals

Weight (approx.) Amplifier 23kg (un-boxed)

PSU 16kg (un-boxed)

Nu-Vista M3Instructions for Use. Page 10

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Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice.

SPECIFICATIONS

SUPER INTEGRATED AMPLIFIER

issue 1/26.10.2000

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