Electrocompaniet EC4.7 User Manual

EC 4.7

USA

GB

Unpacking the EC 4.7

Immediately upon receipt of the EC 4.7, inspect the carton for possible damage during shipment.
The carton and packaging have been designed to provide the safest possible protection
for transport of your preamplifier.
Unpack the unit carefully. Save all packaging materials for future shipment.

The contents of the carton

1 pcs Electrocompaniet EC 4.7 (preamplifier)
1 pcs AC main cord.
1 pcs inspection card.
1 pcs remote control.
2 pcs batteries.

Set up procedure

Before connecting the EC 4.7 to the mains, check that the main voltage indicated on the
rear panel corresponds to the line voltage in the territory where you intend to use the unit.

How to avoid damages

Do not under any circumstances connect or disconnect equipment when power is turned on.
The design of the RCA plug generates a huge transient when inserted.
Connecting or disconnecting equipment with the power on can result in severe damage
to both speakers and amplifier.

GBUSA

How to avoid noise problems

The EC 4.7 contains delicate circuits that are sensitive to magnetic strayfields.
The unit should not be placed near main transformers, TV sets, etc. Care should also be
taken regarding placement of the interconnect cables. Do not run interconnect cables in
parallel with main cords or speaker cables. Keep interconnect cables as short as
possible.

How to avoid possible antenna problems

In some set-ups hum may occur when you connect the radio, VCR or TV to your system.
The problem is caused by DC voltage coming from your antenna.
Please contact your cable network operator.

2

How to connect your system

Please read this page carefully and follow diagram 1.
On the rear panel you will find a switch to adjust the gain in the amplifier.
Use this switch to accommodate the signal source to the amplifier. This switch will also
affect the HT input.

Inputs

Single- ended operation:

The left channel is the top row on the rear marked black.
All inputs are similar regarding sonic performance.
Unused inputs may be shorted to ground, using a RCA shorting plug.
To use the balanced input single ended, connect the ECP5XLR in the XLR

Outputs

REC:

Tape outputs are used for recording.
The source you listen to will be monitored through this output.
The record function is not influenced by the volume control setting, but will be shut off by
the MUTE function.

Never use shorting plugs in outputs.

GBUSA

LINE OUT:

The line out is a variable output, dependent on the volume control setting and MUTE function.
These outputs (balanced and single- ended) control the power amplifier.
If more than one amplifier is used, and these amplifiers are DC coupled on the input side,
they will influence on each other when the amplifiers are switched on/off.
To avoid any problem, these amplifiers must be turned on/off simultaneously.
Never use shorting plugs on the outputs.

How to power up your system

You should always power up your system in the following way:
Signal sources (CD player, tuner, etc.) first, then the EC 4.7.
Allow a 30 seconds warm-up before you turn on the amplifier.

When switching off your system:
Start with the amplifier, then the EC 4.7, then the signal sources.

3