10
AC Power Requirements
Standard PRX700 series speaker systems are equipped with a multi-channel Class-D power amplifier
and loudspeaker specific DSP electronics and require appropriate AC power. Before plugging a PRX700
speaker into an outlet ensure that it is able to provide the appropriate AC power as required by the speaker.
A robust AC supply is necessary for maximum performance. If the supply is too weak the bass performance may
be affected and if it sags (drops) too much the system may self-mute to protect itself. As soon as the appropriate
AC supply is restored it will continue to operate. Plugging multiple systems into the same outlet and long
extension cord runs may affect the AC supply to the systems.
In compliance with safety agency criteria and proper system operation, it is critical that the system installer
observe all electrical safety practices at all times and provide proper earth grounding for all AC Power
connections.
Powering Up
The main power switch is located on the input panel on the back of the enclosure. Always ensure that the
speaker system is the last thing you power up, and the first thing to turn off when operating your complete PA
system. If speaker systems are daisy chained together always turn off the last system in the chain first. Power
“on” is indicated by the illumination of the blue LED on the front of the enclosure.
Operating Temperature
The design of the amplifier is such that it is very energy efficient and as a result does not get really hot.
In the rare event that it does get too hot it will automatically shut down to protect itself. When its temperature
has returned to within its operating range it will turn back on. A condition under which this may occur is when the
system is operated in very high ambient temperatures or the rear of the enclosure is in direct sunlight. Always
ensure adequate cooling and appropriate shade.
CAUTION
The PRX700 Series Power Amplifier
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