Phoenix Quattro User Manual page 21

Powering the Slave unit:
the Slave unit has a battery and it does not need any extra
power supply. If the battery on the Slave unit runs low, the unit will turn Off its loudspeakers.
The unit's microphone and audio processing will still run, powered by the Master through the
connecting cable.
Remember: if the Slave unit's battery is low it is still powered and operational; it will just shut
off its loudspeakers to preserve power. The Master unit can supply enough power to operate
the Slave unit's microphones and processor but not its loudspeakers. You can connect the
Slave unit to an external power supply using an AC/DC converter which is supplied with the
Daisy Chain unit.
Microphone Pickup Performance:
the Slave unit is not just a simple satellite
microphone. The unit runs the same audio processes as a stand alone unit, including the
person speaking detection, direction finding, and tracking. The Slave unit will transfer its
processed audio to the Master unit which will weigh its quality against its own pickup quality.
If the talker was closer to the Slave and was picked up better by the Slave the Master will
select the Slave's signal as the preferred one. With two units connected you have in actuality
eight microphones searching and tracking the best possible audio signal.
The diagram below illustrates the process:
- 21 – Phoenix Audio Technologies www.phnxaudio.com