Australian Monitor
Rear Panel
8 Balanced Input
8a Signal Strapping
9 Signal Ground Lift Switch
10 Binding Post Outputs
10a Speaker Output Connector
A female 3-pin XLR type connector is provided on
each input:
Pin 1 = Signal Ground;
Pin 2 = Hot (non-inverting or in phase);
Pin 3 = Cold (inverting or reverse phase).
A male 3-pin XLR type connector is provided (not
on SY6125) and wired in parallel with the female
input XLR for strapping / looping signal between
amplifiers.
When this switch is engaged it disconnects signal
ground from the input connectors on both
channels. It is intended to be used when “hum” is
caused by earth loops (due to different ground
potentials between source equipment and the
amplifier) or stray magnetic field pick up on the
input ground/shield wiring. (It does not interrupt
signal ground continuity on the strapping
connector).
The ground lift for the SY6125 is a DIP switch and
is located on the rear panel, one switch per
channel. It should be slid up to lift the ground.
Touch proof binding posts (banana jacks) are
provided for speaker output termination with
banana plugs or bare wire. The red post is used
as
and the black post is used as
. For bridge connection, use only the red
posts. (
A 4 pole speaker connector is provided (not on
SY400V, SY800V, SY6125, SY4200) as an
additional speaker output. This standard of
loudspeaker-to-amplifier connection allows
access to both channels of the amplifier via the
one connector for bi-amp applications. Channel-
The amplifier should be turned off
before engaging this switch!
positive
negative
The
ground lift for the SY4200 is a DIP switch and is
located inside the amplifier and accessed
through the lid, one switch per channel. It should
be slid to the rear to lift the ground.
The SY400V & SY800V cannot be
bridged).
A is considered the dominant channel and has
both channels wired to the speaker connector.
See the installation section of this manual for
detailed information on speaker connector
wiring.
Your amplifier is fitted with either an
internationally recognised IEC mains inlet
connector (SY400, SY800, SY1200, SY400V,
SY800V, SY6125, SY4200) or has an internally
connected mains lead (SY1600).
Please ensure that the connecting mains lead for
use with the IEC connector is of an approved type
and is of sufficient current carrying ability.
Either a 20mm x 5mm fuse drawer is provided
within the housing of the IEC mains connector
(SY400, SY800, SY1200,
) or the amplifier is fitted with a
resettable circuit breaker (SY1600).
Fuse:
When you receive your amplifier it will have a
working fuse and a spare fuse inside the fuse
drawer. The drawer can only be opened once the
mains lead is removed from the connector. The
fuse is provided to protect both the mains and
your amplifier as well as reduce the degree of
damage if an internal fault exists.
When replacing the fuse, replace with an anti-
surge (slow blow) type of the current rating
indicated on the back panel above the fuse
holder.
Warranty does not cover a blown fuse or any
resulting damage due to the use of an incorrect
fuse rating or type.
Breaker:
If the circuit breaker trips, allow 3 mins for the
contacts to reset thermally before pushing the
reset button to reset it mechanically.
P u s h i n g
t h i s
s w i t c h
e n g a g e s
t h e
BRIDGED/MONO mode of operation. In this
mode your amplifier will only accept signal
applied to channel A’s input XLRs and the level of
both channels will be controlled by channel A’s
11 Mains Connection
12 Mains Fuse or Circuit Breaker
13 Bridge Switch
NOTE: Your unit must always be earthed!
i n
SY400V, SY800V,
SY6125, SY4200
Controls & Connectors 11
