Arcam FMJ A32 Manuel - Page 13

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Bi-wiring and bi-amping loudspeakers

BEFORE YOU START

WARNING: Do not make any connections to your
amplifier while it is switched on or connected to the mains
supply.
Before switching on please check all connections thoroughly,
making sure bare wires or cables are not touching the
amplifier in the wrong places (which could cause short
circuits) and you have connected positive (+) to positive
and negative (–) to negative.
Always ensure that the volume control on your amplifier is
set to minimum before starting these procedures.

BI-WIRING YOUR LOUDSPEAKERS

Bi-wiring improves the sound of your system because it divides the
high and low frequency signal currents into separate speaker cables.
This avoids signal distortions arising from the high and low frequency
currents interacting with one another within a single cable, as in
conventionally wired systems.
You will need:
Speakers – with four input terminals each: these will be marked
(High Frequency) and
(Low Frequency).
LF
Loudspeaker cables – two pairs of cables per loudspeaker (which may
be joined at the amplifier end if your amplifier has only one pair of
output terminals per channel). Or, a suitably terminated cable set (a
loom, probably prepared by your dealer and capable of being used for
bi-wiring in one length).
How to bi-wire loudspeakers
1. Remove the terminal links on the rear of your loudspeakers
WARNING: This step is essential or damage to your
amplifier may result which is not covered under warranty.
2. Connect the cables as shown in the diagram below, ensuring
correct polarity at all times.
Arcam A32 amplifier
+
–
R
+
HF
–
Right
speaker
+
LF
–
Bi-wiring using one set of connections on amplifier
HF
+
–
L
+
–
HF
Left
speaker
+
–
LF

BI-AMPING YOUR SYSTEM

The performance of your system can be further enhanced over that
achieved with bi-wiring, by extending the principle one stage further
to include separate amplification for the low and high frequency drive
units in each loudspeaker enclosure.
Connect the integrated amplifier to the high frequency (
and connect the power amplifier to the low frequency (
You will need:
Speakers – with four input terminals each (as with bi-wiring): these will
be marked
(High Frequency) and
HF
Two amplifiers – one of these would be the A32 and the other an
Arcam power amplifier (e.g. P35).
Loudspeaker cables – two pairs of cables per loudspeaker or a suitably
terminated cable set (a loom, probably prepared by your dealer and
capable of being used for bi-amping in one length).
Interconnect cables – one pair of high quality interconnect cables.
How to set up a bi-amped system
1. Remove the terminal links on the rear of your loudspeakers.
WARNING: This step is essential or damage to your amplifier
may result which is not covered under warranty.
2. Connect the cables as shown in the diagram below, ensuring
correct polarity at all times.
3. Use the interconnect cables to connect the
the A32 to the corresponding
amplifier.
+
–
R
–
+
HF
Right
speaker
–
LF
+
–
+
–
R
Arcam P35 power amplifier
Recommended bi-amping configuration
13
LF
(Low Frequency).
LF
PRE OUT
sockets of the power
AUDIO IN
Arcam A32 amplifier
+
–
L
+
–
HF
Left
speaker
LF
+
–
+
–
L
) terminals
HF
) terminals.
sockets of