Connecting To Other Equipment - Arcam A70 Handbook

Standby power
For remote standby operation, the amplifier's control power supply is kept powered up all the time the
unit is connected to the mains supply. The front panel power switch powers down all other circuitry.
Power consumption in this mode is less than 2.5W.
This means that even though the power switch is off, it may be possible to hear a slight hum coming
from the mains transformer inside the amplifier. This is perfectly normal. If the unit is to be left unused
for an extended period, we recommend that it is disconnected from the mains supply by switching it off
at the wall socket, or by disconnecting the power lead.

Connecting to other equipment

The use of high quality interconnect cables to and from your amplifier is recommended to ensure the
best sound quality. Sockets marked
marked (and ) on other equipment. All the line inputs have the same sensitivity and may be used
L R
with equipment other than that labelled, if needed.
6
LINE OUT – Connect this output to the audio inputs of any unit with a line-level input, e.g., tape
deck, etc.
TAPE/RECORD OUT 7
(usually labelled
RECORD
TAPE/PLAY IN 8 – Connect these input sockets to the output sockets of your cassette deck
(usually labelled ). If you do not have a cassette deck you can use this input for other (line level)
PLAY
equipment, such as a CD player, tuner, VCR, etc., but not a turntable.
DVD 9 – Connect this input to the audio outputs of a DVD player.
bk
AV – Connect this input to the audio outputs of audiovisual equipment such as a VCR, laserdisc
player, satellite or Nicam tuner.
TUNER bl – Connect this input to the audio outputs of your radio tuner.
CD bm – Connect this input to the audio outputs of your CD player or DAC (digital to analogue
converter).
AUX bn – Connect this input to the audio outputs of any unit with a line level output, e.g. tape deck,
tuner, etc.
PHONO bo – Connect this input to the output of your record player. This input provides RIAA
equalization and is compatible with most high output moving magnet (
Phono earth terminal – For connecting your turntable earth lead (if fitted). Note that this terminal
must not be used as a safety earth.
TRIG OUT and REMOTE IN
Tip=signal, Sleeve=ground. The connections are intended for use in multi-room installations.
– This output provides a 12V signal whenever the unit is switched on (i.e., not off or
TRIG OUT
in standby). This signal can be used to switch on automatically power amplifiers (or other
equipment) connected to the A70, as they will come on when the A70 is activated. This is useful if
the power amplifier is remote from the A70, or otherwise difficult to access. If you are bi-amping
with a power amplifier and wish to power both units on or off simultaneously, see page 10.
– This allows remote control signals to be received by the A70 if the remote sensor is
REMOTE IN
covered (or otherwise not 'visible' to the remote control). An external sensor is used to receive
the signals from the remote control, which are then fed to the A70 (into this input) using a
suitable cable. Remote control signals acceptable to the A70 must be in modulated RC5 format,
with a voltage level of between 5V and 15V.
Note that in normal use there is no need to make any connections to these sockets. If you would like to
make use of these features, please contact your dealer for more advice on how to make the connections
and on what type of cable to use.
Pre/power amplifier connections
If you wish to use your A70 as a power amplifier, please consult your Arcam dealer.
PRE OUT 5 – To use your amplifier as a pre-amplifier, connect the
sockets of your power amplifier. With a power amplifier of the correct gain (e.g. an Arcam P90 power
amplifier) you can bi-amplify ('bi-amp') suitable loudspeakers, giving significant improvements in sound
quality (see page 10).
The different output types
The distinction between
: This is the output that should be connected to your power amplifier. The output level varies
PRE OUT
with the volume control.
: This output is taken before the volume control, i.e., the source being listened to is routed
LINE OUT
directly to this output. If you wish, this output may be connected to a recording device, such
as a cassette recorder. Under no circumstances should this output be connected to a power
amplifier.
: The output from the
RECORD OUT
the amplifier. Full instructions for this output are given on page 7; briefly, if the amplifier
is configured to '
connection. If the amplifier is configured so that you are recording a different source than the
one you are listening to, then the
(and ) on your amplifier should only be connected to sockets
L R
– Connect these output sockets to the input sockets of your cassette deck
).
3 (12V in and out) – Each socket accepts a 3.5mm Mono Jack, with
, and
PRE OUT LINE OUT RECORD OUT
connectors is dependent on the configuation of
RECORD OUT
REC SOURCE
', then this output will carry the same signal as the
connections will carry the source being recorded.
RECORD OUT
) cartridges.
MM
sockets to the input
PRE OUT
output types is subtle but important.
LINE OUT
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3.5mm Mono Jack
A70
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