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FX Amplifier • Operating Manual
6. Setup and Signal Routing
Thanks to their network based configuration
features, FX amplifiers offer considerable
versatility in terms of sources, signal routing,
installation zones and output modes. Inputs
can be freely assigned to installation zones,
and those zones assigned freely to the
available amplifier outputs in either Low-Z or
Hi-Z modes.
This versatility enables, for example, one
amplifier simultaneously to drive both Low-Z
and Hi-Z speakers, or for different inputs to be
routed to different output zones.
The following paragraphs describe and illustrate
the recommended procedure for configuring
zone and output routing. A general signal flow
schematic is illustrated in
6.1 Input Setup
1) Open the configuration Dashboard and
select the Input Tab.
2) Select the Input Name field and enter text.
3) Define the input as mono or stereo by
selecting the appropriate option. Defining a
stereo input will reduce the total number of
discrete inputs available.
4) Select an input sensitivity option from the
drop-down menu: +14dB, +4dB, -10dB and
'microphone' options are available. Generally,
the +14dB or +4dB options are appropriate
for 'professional audio' source hardware with
balanced outputs, while the -10dB option
is more appropriate for 'consumer audio'
source hardware with unbalanced outputs.
The 'microphone' option provides the
significantly greater sensitivity required for
microphones.
Configuration
Note: Only dynamic microphones are
suitable for connection. Phantom power for
condenser microphones is not provided.
5) If necessary, adjust the input gain using
the slider or up/down icons. Gain adjustment
is intended to be used for fine output level
adjustment following initial use.
6.2 Zone Setup & Routing
1) Open the configuration Dashboard and
select the Zone Tab.
2) Select the zone to be configured. The
number of zones available will depend on
the amplifier model, input setup (mono or
stereo) and output mode (Low-Z or Hi-Z).
For example, a two output amplifier will
have two zones available if only mono inputs
section
10.
configured, but have only one zone available
if any stereo input is configured. Similarly, a
four output amplifier with only mono inputs
configured but one output configured for Hi-Z
mode will have only three zones available.
Note: When configured in Hi-Z mode, FX
amplifiers operate in 'bridged' mode where
the output of two channels is combined. This
means that the number of output channels
available in Hi-Z mode is half that available in
Lo-Z mode.
3) Name the zone by entering text in the
Zone Name field.
4) Adjust the zone volume if required by using
the slider.
5) Define a mono or stereo zone by selecting
the appropriate option. Defining a stereo
zone will reduce the total number of further
zones available.
6) Specify an input source for the zone by
selecting from the drop down source menu.
Note: Selecting a stereo input for a mono
zone will automatically sum the stereo
channels to mono.
7) Set up GPIO Volume Control for each zone
if desired. (see
section 7
for details)
8) Set up Compressor for each zone if desired.
6.3 Output Setup
1) Open the configuration Dashboard and
select the Output Tab.
2) Select the output to be configured. The
number of outputs available will depend on
the amplifier model, zone setup and output
mode. For example, a two output amplifier
will have two outputs available if Low-Z mode
is selected but only one output available if
Hi-Z mode is selected.
3) Name the output by typing in the Output
Name field.
Note: Specifying a Zone as stereo will
automatically generate three output channel
source options: left channel, right channel or
summed mono. On a four channel amplifier,
the summed mono signal can potentially be
used to drive a subwoofer, while two other
channels are used for L/R.
4) Select the mode required for the output.
The number of outputs available will depend
on the amplifier model, input setup and zone
setup. For example, a two output amplifier
will have two outputs available if Low-Z mode
is selected but only one output available if
Hi-Z mode is selected.
13
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