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Operating Your Amplifier: Front Panel Controls and Indicators
1: USB Type “B”: Connect to a computer for remote control — a driver will be required.
Please see the section on remote control starting on page 50.
2: REMOTE LED: This will flash when the unit is being addressed under remote control.
3: AES IN LED: This illuminates if either AES input is switched in (replacing the respective
analogue input channel) and will flash if there is a loss of lock on either input. Note that this
does not mean AES is actually routed to the amplifier’s DSP, only that a rear panel socket is
set to receive an AES stereo signal.
4: NET. AUDIO LED: This will illuminate when an audio network connection is correctly made
to the amplifier. Note that this does not mean that any network audio channels are actually
routed to the amplifier’s DSP, only that the connection is available.
5: Main Display: By default this will display preset names and is used to show all parameter
information.
6: Meters Display: This screen shows context sensitive metering for either the available
analogue and digital inputs (In A-D Bank selected) or the feeds to the bank of either power
amplifier outputs or auxiliary outputs. See page 26 for more information.
7: PROTECTION LED: If a condition exists, either internally or externally, that could cause
damage to either the amplifier or the speakers, the protection circuit will disengage the
outputs and this LED will illuminate/flash.
Typical conditions that could cause the protection to be triggered include very high frequency
or subsonic input signals, DC in the inputs, short-circuited outputs, or internal high
temperatures.
The protection circuit can affect all channels or a ‘channel pair’ depending on the type of
fault. This is indicated by the combination of Protection LED illuminating and a corresponding
message on the LCD. In this way, it is possible for two channels (a channel pair) to remain
functioning even though a fault has caused the other channel pair to mute. A channel pair
would be 1+2 or 3+4.
Temperature related faults will reset automatically if the unit has cooled sufficiently. Output
short circuits will require manual reset after clearing the fault (switching off at the mains
switch and then on again after a few seconds). Short circuits on either channel of a channel
pair will only affect that channel pair.
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