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Bi-amping
Bi-amping is the separation of the amplication of low- and high-
frequency signals over two ampliers. You will need to connect to
loudspeakers that provide separate terminals for the two cables. Each
speaker must have two pairs of terminals; one pair labelled HF For ‘High
Frequency’, the other pair labelled LF or ‘Low Frequency’.
If your speakers support bi-amping, then there will be a strip
of conductive metal or a wire on the speakers connecting the
low-frequency terminals to those for the higher-frequencies.
is connection MUST BE REMOVED in a bi-wired system.
Failure to remove this connection is likely to cause damage
to the amplier when used in bi-amping conguration. is
damage is not covered by warranty.
Bi-amping requires the use of two zones for every pair of speakers. Zone
1 of the amplier can easily be bi-amplied. Connect the Zone 1 speaker
terminals to the low-frequency loudspeaker terminals. Connect a second
zone to the high-frequency speaker terminals and set the input switch
for this zone to the Z1 position. For best performance, use Zone 3. Zone
1 and Zone 3 have completely independent power supplies, including
transformers, making this arrangement equivalent to using two separate
amplier components.
Further zones can be bi-amplied by using splitter cables to feed
two zone inputs from one source. Contact your dealer for further
information.
Notes on making speaker connections
• D
. We recommend that your amplier
is completely disconnected from the mains supply before
starting.
• Before switching your amplier(s) on for the rst time
aer connecting to speakers, please check all connections
thoroughly. Ensure that bare wires or cables are not touching
each other or the amplier’s chassis (which could cause short
circuits), and that you have connected positive (+) to positive
and negative (–) to negative. Be sure to check the wiring for
both the amplier and the speaker.
• Aer making connections: switch the amplier(s) on, select
a source signal, then gradually increase the volume to the
required listening level.
If you are unsure as to how your system should be connected, or
need advice on bi-wiring or bi-amping, please contact your Arcam
dealer who will be happy to help you.
L
R
AUDIO IN
Z1 Z2
L
R
AUDIO IN
Z5
Z6
Z1
_
_
+ +
R L
Z2
_ _
+ +
R L
L
R
AUDIO IN
Z3
Z4
Source
Z1 Z3
Z3
INPUT
Z5
_ _
+ +
R L
Z6
_ _
+ +
R L
Z3
_ _
+ +
R L
Z4
_ _
+ +
R L
Zone 1 of an MZ12 amplifier connected to speakers using bi-amping, by means of Zone 3
Right
speaker
terminals
Left speaker
terminals