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AIROCKS PRO ARX-900 USER GUIDE V1.0
3.2.2
Audio Input Configurations (Master unit)
3.2.2.1
Balanced Mono Audio Input Connector Configuration (factory default)
The Balanced Mono audio input configuration is shown below. In this mode the audio input signal clips
at +8.2dbu (~1.9Vrms, 2.8Vpk).
Figure 5 Balanced Mono Audio Configuration
3.2.2.2
Unbalanced Stereo Audio Input Connector Configuration
The ARX-900 transmits two independent audio channels over the air. This allow the Master to send
unbalanced stereo channels on XLR Pins 2 & 3 (Pin 1 is a common ground for both channels). The Relay
unit can select either the Left or Right channel and output this signal as a balanced audio output signal
(Left or Right balanced output). Or the Relay can be configured send the Left channel out on Pin 1, and
the Right channel out on Pin 2 with Pin 1 being a common ground for both channels. In this mode the
audio input signal clips at +2.2dbu (~.98Vrms, 1.4Vpk).
Figure 6 Unbalanced Stereo Audio Input Connector Configuration