The system combines voice evacuation system features with digital public address, intercom, and background music functionality by adjusting the volume for each speaker individually depending on the application.
A completely digital bus structure distributes uncompressed digital audio data without any audible latency from one or many play-out stations to an unlimited number of locally amplified loudspeakers using either CAT5 or J-Y(ST)Y wires.
The VARIZONE network uses a digital speaker system (DSS) bus format to transmit data and power at 48 volts over the same wires from a central play-out station to the loudspeakers.
On the digital bus line, programmable amplifier modules are distributed to provide amplification for connected loudspeakers.
The modules are digital Class-D amplifiers with extremely low heat dissipation.