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Installation: C31 pre-amplifi er
VOLTAGE
SELECT
POWER INLET
115/230V
Positioning the unit
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Place your amplifi er on a level, fi rm surface.
Avoid placing the unit in direct sunlight or near sources of heat or damp.
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Ensure adequate ventilation. Do not place the unit in an enclosed space such as a bookcase or
cabinet as both of these will impede air-fl ow through the unit.
Connecting to other equipment
The connections on the rear of the C31 fall into four groups:
1. dedicated audio inputs;
2. recording loops;
3. connections for power-amplifi ers;
4. remote control and trigger connections.
These groups are described below.
General advice on connecting to other equipment
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We recommend the use of high-quality interconnect cables to and from your amplifi er to ensure the
best sound quality; cheap 'bell-wire' interconnects may seem to be a good alternative, but they will
reduce the overall quality of your system, and are a false economy.
Make sure that audio and power cables are kept as far apart from each other as possible. This
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reduces the risk of 'noise' from the power cables bleeding into those for audio.
Cables should be kept as short as is practical.
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For each of the audio inputs/outputs that you wish to use, connect the terminal labelled
LEFT
Similarly, the terminal labelled
the C31.
Conventionally, stereo-phono leads have plugs that are coloured red for the right channel and white
or black for the left channel, to aid channel identifi cation.
Audio inputs
DVD – This input is intended for use with a DVD-player. Connect the stereo audio outputs of your
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DVD player to these sockets.
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AV – This input is intended for use with general audio-visual equipment, such as a VCR,
digital TV/satellite receiver, or Nicam tuner. Connect the analogue audio outputs of the
device to this input.
TUNER – Intended for use with a radio tuner.
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CD – Intended for use with a CD-player.
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AUX – As with the 'AV' input, this is intended for general use. Connect the audio outputs of
any unit with a line-level output (tape deck, tuner, etc.), to this input.
PHONO (if fi tted) – As standard, no phono input is fi tted to the C31.
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Phono inputs are provided on a separate plug-in module which your Arcam dealer or
distributor can supply and fi t. This module is compatible with most high-output moving-coil
and moving-magnet cartridges (MM) and low-output moving-coil cartridges (MC). Once the module
is fi tted, MM or MC is selected via the
Why is this useful?
The phono module (or an external phono amplifi er) is required if you wish to connect a record
player to the C31. This is because the low-voltage output of a record player requires a pre-
amplifi cation stage before the signal can be used.
If you have already an external phono amplifi er that you wish to use, connect this to one of the
line-level inputs, such as the 'AV' input.
C31/P35/P1
E-4
TRIG
OUT
REMOTE
IN
R
(on the device to be connected) to the terminal labelled
or
R
L
R
BUFFERED
DIRECT
L
PRE OUT
for that input/output on the C31.
L
on the device should be connected to the
RIGHT
back panel switch.
MM/MC
L
R
RECORD
RECORD
PLAY
PLAY
OUT
OUT
IN
IN
TAPE/PROC
VCR/TAPE 2
DVD
AV
or
L
-terminal on
R
of the '
although these inputs
are labelled for specifi c
devices, all have the
same characteristics and
each may be used with
any line-level product.
L
PHONO
R
MM
MC
TUNER
CD
AUX
With the exception
' input,
PHONO
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