Australian Monitor
Front Panel
The
Synergy
Series models have identical front panel
layouts.
Figure 1
shows the panel layout of the
Synergy
Series.
The functions of the controls and indicators are as
follows:
1 Attenuator
Level control for your amplifier is provided by a
potentiometer on the front panel and indicates
gain.
2 Status Indicator
This is a dual color LED which displays the status
of the output stage and displays three levels of
operation.
These levels are:
Below 1 watt
(unlit)
1 watt and above
(
green
)
1dB below actual clipping
(
red
)
The LED will turn green once the output voltage
exceeds 2.828 volts (1 watt re 8 ohms or 2 watts
re 4 ohms).
The LED will change to red once the output
exceeds the -1dB point before actual clipping of
the amplifier’s output stage. The threshold of the -
1dB point is referred to the amplifier supply rails
and alters with changes in the mains supply,
changes in the load and duty cycle fluctuations.
The attack and decay time (ballistics), of the
status circuit are those of a Peak Programme
Meter (P.P.M.)
If using this indicator to line up sensitivities, apply
a steady state tone (e.g. slate on a mixing
console). The 1 watt level is the mid-point
between the indicator illuminating and
extinguishing green.
NOTE: The amplifier is not damaged by running
into clipping, but speakers may be. To maximise
the life of your speakers, try to keep clipping
infrequent.
3 Overload Indicator
This
amber
LED will illuminate when an overload
condition exists.
Overload conditions can occur under extreme
operating conditions such as:
- complex or very low loads
- over driving the amplifier
It should be noted that the minimum load for the
amplifier is 4 ohms per channel (8 ohm bridged).
If an overload occurs the amplifier will shut down
and mute both outputs. If the overload is only
transitory then the amplifier will resume normal
operation after approximately 7 secs. If the fault is
continuous then the amplifier will remain muted.
4 Power Switch
Press the switch to
up
for power
on
(
I
)and
down
for power
off
(
0
). At start-up (turn-on) the input to
the amplifier is muted for approximately two
seconds.
5 Thermal Indicator
In the advent of a thermal overload this LED will
turn
red
indicating that the internal operating
temperature of one or both amplifier channels
has exceeded a safe level of operation and the
channels will be automatically muted. The fans
will continue to run and once the effected
channel/s have had a cool-down period, they will
un-mute and return to normal operation.
NOTE: You should always ensure that the fan
grille is kept clean and free from the build up of
dust and lint. This will ensure longer operation of
your amplifier and reduce the possibility of it
prematurely going into thermal shutdown mode.
See the section “Installation - Cooling “ on page
10 for recommended cooling procedures.
6 On Indicator
This LED will illuminate
blue
and indicates that
the amplifier is on and receiving mains power.
7 Fault Indicator
This
red
LED indicates a significant problem with
the amplifier and the amplifier should be returned
to an authorised technician for servicing.
Controls & Connectors 7
2. Controls,
Connectors
& Indicators
Figure 2 Front Panel Layout
6 Controls & Connectors