VA-6000MS is with functions of auto switching between main amplifier and backup amplifier, speaker loop detection for grounding, OC and SC, and in the mean time, it's compatible with 3/4 wire volume control routing, while no need extra wiring and power supply. Also, it's with 8 programmable dry/wet contact trigger input and 8 programmable linkage output. What's more, it could work with both Class D digital power amplifier and analog amplifier to build up sound reinforce system. In general, it provides the system with safe, stable and cost-effective solution.

1)  In 2U, highly integration, modular design;

2)  Support speaker loop detection for grounding, OC and SC;

3)  Support 3/4 wire speaker loop routing;

4)  8 programmable trigger input online interface;

5)  8 programmable trigger output online interface;

6)  When no signal input, the device enters power-saving mode automatically;

7)  Support redundant wiring;

8)  Could work with linkage type fire alarm controller to achieve fire alarm linkage control.

* Auto switching between main amplifier and backup amplifier, real time detection for amplifier status that is displayed by LED in different color;

* Real time monitoring for bus of speaker loop, amplifier status to realize auto switch control;

* When no signal input, the device enters power-saving mode automatically (users could turn on the function through the software VA-6000ST, default disabled);

* Allows to configure the priority between network audio and local audio;

* Even if the main and standby power supply is cut off at the same time (power supply for amplifier is normal), the 8 local audio signal is not affected;

* 8 channels dry or wet contract input, which trigger that the preset voice message in the program is transmitted to the selected zone or the corresponding external power supply is turned on to realize corresponding event alarm;

* 8 programmable relay signal output, which could output no voltage relay short signal to the third party equipment to realize online auto control;

* Provide input interface for power supply at DC 24V ( powered by VA-6000BC).