VA-6000MS 8 Channel Changeover


    • 2U chassis design, high integrated, modularization.Support speaker circuit grounding, open circuit and short circuit detection.
    • Support 3/4 wire horn circuit wiring.
    • 8 programmable trigger input interfaces.
    • 8 programmable trigger output interfaces.
    • Support power-saving mode when the amplifier has not input signal enters.
    • Support lines redundance wiring.
    • Support linkage to fire alarm controller.
  • * Main amplifier automatic backup switching power amplifier, real-time detection, indicate by different color LEDs.
  • * Real time monitoring speaker bus loop, power amplifier status, automatic control switch.
  • * Allows amplifier enter into power saving mode when no signal input to save energy (start through VA-6000ST, default disabled).
  • * Allows to configure the priority of network and local audio.
  • * Support power through, even if the main and standby power supply is cut off at the same time (amplifier power supply normal), the local 8 audio signals are not affected.
  • * 8 stem node or wet node input port, to trigger the pre-pragrammed language information to the specified zones or open the coresposing external power to the corresponding event warning.
  • * 8 programmable relay signal output port, ouupt no voltage output short circuit relay control signal to the third party equipment to realize on-line automatic control.
  • * Provide DC 24V standby power input interface ( connect to 24V DC supplied by VA-6000BC).


AC Power Supply 
Voltage~220-240V 50/60Hz
Maximum Current0.3A (not including the 4 wire strong cut output)
Specification Of The Fuse250V/2A, slow speed type
DC Power Supply 
Voltage24V DC, ±20%
Maximum Current2A (not including the 4 wire strong cut output)
Performance Index 
Parallel Signal Input / Output 
Distortion<1% (rated output power),1KHz
S/N Ratio>70dB
Contact Output 
8 Relay Programmable OutputShort circuit, no voltage
8 ProgrammableTrigger Input8 programmable trigger input
Level ModelHighest 3.3V
Short Circuit ModeNo voltage, short circuit
Cooling WayAir cooled
ProtectionDelay / temperature / short / overload
Mechanical Index 
Size (L x W x D)484 x 88 x 447 mm (19 inches wide, 2U)
WeightAbout 7.8 Kg
InstallationDesktop or 19 inch cabinet
Environmental Requirements 
Environmental Requirements+5℃ ~ +40℃
Storage Temperature-20℃ ~ +70℃
Relative Temperature<95% (no treatment)