Musical Fidelity Electra E20 User manual

Instructions For Use. Page 1E20

E20 REMOTE CONTROL STEREO

PREAMPLIFIER

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity

Elektra E20 Preamplifier . Used properly and care-

fully, it should give you many years of outstanding

musical reproduction.

The E20 is the result of many years painstaking

research and development. The E20 is designed for

ultra-high definition performance and is equipped

with full remote control facilities.

Aesthetically, the E20 is a perfect match for the

Elektra E30 power amplifier, E50 tuner and the E60

CD player. Together, they form one of the finest hi fi

systems that you can own today.

Dust regularly with a soft duster or soft brush but

do not use 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.

Instructions For Use. Page 2E20

PLEASE READ

IMPORTANT!

This unit is supplied in the UK 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 ac-

cordance 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 corre-

spond 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 termi-

nal 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 10 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 ad-

versely affected by normal background levels of RFI. It is possible that if this prod-

uct 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 dam-

aged 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 should be removed from sockets and aerial leads

disconnected.

Always ensure that when disconnecting and reconnecting your hi-fi equipment

the mains supply is switched off.

Instructions For Use. Page 3E20

CONNECTIONS AND FACILITIES

REMOTE CONTROL

ARemote operation LED

BVolume Up/Down buttons

CSource selector buttons

DMute Button

10 12 13 14 15 16 17 18 19 20 21 22 23

12 3 4 5 6

7 8 9

FRONT PANEL

1Power on/off switch

2Volume control knob

3Remote receiver lens

4Tape 2 record selectors

5Mute indicator

6Source selector knob

7LED, indicates volume setting

8Output to Tape 2 indicators

9Source (listen) indicators

BACK PANEL

10 Phono/Chassis Earth

11 Phono cartridge type button

12 Phono input

13 CD input

14 Tuner input

15 Video input

16 Laser Disc input

17 Auxiliary input

18 Tape 1 input

19 Tape 2 input

20 Tape 1 record output

21 Tape 2 record output

22 Preamp outputs

23 IEC mains inlet/ fuseholder

Instructions For Use. Page 4E20

þHeed all warnings on the back of

the unit.

þþ Place your Elektra E20 where

there is adequate ventilation.

þþ Only connect the unit to a power

supply of the type marked on the back

of the unit.

þþ Position the power supply lead

and signal interconnect leads where

they are not likely to be walked on or

trapped by items placed on them.

þþ Fit 2 x “AAA” size batteries into

the remote control. These must be

alkaline types. Please observe the

correct polarity of + and - when fit-

ting.

ýý Do not use near water.

ýý Do not place the amplifier near

direct heat sources such as radiators

or other equipment that produces

heat.

ýý Do not remove any covers or try

to gain access to the inside. The war-

ranty will be invalid if the unit has

been tampered with. There are no

user adjustments within. Refer all

service work to an authorised Musical

Fidelity agent.

ýý There are fuses in the E20. In the

unlikely event that one blows, take

your E20 to your audio dealer. Do

NOT try to replace the fuse yourself

or you will invalidate the warranty.

BEFORE YOU SWITCH ON

You should make all connections to the E20 before switching on.

Follow this routine before you listen for the first time, and each time you

change any connections.

1Check all the inputs and outputs to the E20.

2Then check again.

3Turn the volume control to nil.

4Now you can switch on the power and carefully advance the volume to

the level you want and enjoy the music.

INSTALLATION

INSTALLATION PRECAUTIONS

Your new E20 is designed and built to provide trouble-free performance but it

is necessary to observe a few precautions. Please ensure that you have complied with

them before you connect any AC power to your amplifier. Retain this guide for

future reference.

Instructions For Use. Page 5E20

To select any input, simply press

the Source Up or Source Down button

on the remote control, the preamp will

then cycle through the inputs until the

desired one is selected. The volume

control is motorised, so that when you

press Volume Up or Volume Down on

the remote, the control will rotate in the

required direction. The red LED in the

volume control knob indicates the cur-

rent setting of the control. To temporar-

ily turn off the sound, in order to answer

the telephone for instance, press the

MUTE button on the remote control.

The mute LED will light indicating the

muted state. It is advisable to acquire

the habit of turning down the volume to

zero before switch off.

HEADPHONES

The E20 has a standard 1/4" jack

socket for connecting headphones. If

your headphones are supplied with the

type of mini-jack which is commonly

used for portable cassette players, you

will need to use a mini-jack to 1/4" jack

adaptor. The E20 has a separate low

powered Class A amplifier for

headphone use. When you plug in the

headphones, the main preamp output

will be muted. Most headphones avail-

able on the market are suitable for use.

CONNECTIONS

All connections should be made

with the power OFF.

The E20 has inputs for Phono (MM and

MC), CD, Tuner, Video, LD, Auxiliary

and two Tape decks (1 and 2).

TAPE CONNECTIONS

Note that the E20 has connections

for two tape decks.

You could therefore have two tape

decks connected at the same time. To

listen to Tape 1, select Tape 1 with the

source selector, to listen to Tape 2, select

Tape 2 on the source selector.

For recording on Tape 1, whatever

source is selected on the source (listen)

selector will automatically be sent to the

Tape 1 record outputs.

Tape 2 has its own record selector

which is controlled by the push buttons

on the front panel. This allows you to set

which source you wish to record on Tape

2 independently from what is selected by

the source (listen) selector. Thus it is

possible to for instance listen to the CD

input while recording the Tuner input on

Tape 2.

PREAMP OUTPUTS

In order to be used with loudspeak-

ers, the E20 must be connected to a

power amplifier, such as the Musical

Fidelity Elektra E30. Connections are

made with standard Phono/RCA type

cables.

OPERATION

All functions of the E20, with the

exception of the TAPE 2 RECORD

SELECT and power on and off, can be

controlled via the supplied remote con-

trol.

CONNECTIONS

Instructions For Use. Page 6E20

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:

TROUBLESHOOTING

If none of these actions effect a cure, please contact your dealer, or an author-

ised Musical Fidelity service agent. Remember, never open the case of the E20

yourself, as this will invalidate the guarantee.

Problem Probable Cause Remedy

No power when

POWER is pressed Mains plug not inserted

correctly Plug in securely

Hum when listening

to turntable

Incorrect earthing of pickup

arm cable Either connect or

disconnect the pick-up

arm earth wire to the

earth terminal on back

panel

No sound Volume control is set to

minimum Turn up the volume

Headphones are connected,

muting the main output Unplug headphones

"Mute" pressed on remote

control Press "mute" again

Power amplifier is not

connected Check cables and

power amplifier

Speakers are not connected Check speaker cables

Wrong input is selected Check input selection

Sound is not precise,

lacking in bass and

stereo image

Speakers are connected out

of phase Make sure that both

speakers are

connected correctly

Remote control

operation is not

possible

Amplifier's power switch is

set to off Set switch to on

Batteries not inserted in

remote control unit

Insert batteries

Instructions For Use. Page 7E20

SPECIFICATIONS

ELEKTRA E20 REMOTE CONTROL PREAMPLIFIER

Improvements may result in specification or feature changes without notice.

Photos and illustrations may differ slightly from production models.

Output (Unbalanced) 0.775V

THD < 0.01%

Frequency Response 20Hz - 20kHz +/- 1dB

Inputs. 5 Line, 2 Tape, 1 Phono.

Input sensitivity Line 250mV/47K

S/N Ratio Line >85dB

Tape output Dependent on input

Power consumption 10 Watts

Power requirements 100-120Volts, AC 50/60Hz

220-240Volts, AC 50/60Hz

(Factory Preset for country)

Phono Stage MM 3mV, 47K

MC500mV

Dimensions

W x H x D 440 x 95 x 340mm

Height includes feet.

Weight: 5.2 kgs.

7.0 kgs. (packed)

Standard Accessories Remote Control Unit

Battery 2 x (SUM-4, “AAA”,

“R03”)

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