class d amplifier 8 Channel amplifier with fault changeover speaker line surveillance

FEATURES:

• 1. 8 Channel amplifier fault changeover with speaker line surveillance
  2.19" rack mount design in 1U height
  3.One standby amplifier to backup 8 amplifier within 1 second
  4. 8 speaker line supervision for open circuit, short circuit and impedance fluctuation
  5. Each speaker zone detection time within 2 seconds
  6. The amplifier and speaker line fault will be reminded by indicator, buzzer, fault out and RS485 out
  7. 8 amplifier indicator, standby amplifier indicator and 8 speaker line indicator
  8.With calibrate button on front panel to initialize or calibrate each amplifier and speaker line setting
  9. With 8 balanced line inputs and 8 balanced line outputs with 24V overriding relay
  10. With 8 amplifier 100V inputs and 8 zone 100V outputs
  11. Dipswitch for 8 zone enable or disable the monitoring
  12. Auto or manual two different monitoring options
  13. 10% and 20% two speaker impedance monitoring options
  14. Expandable from 8 zones to max 192 zones
  15. Two RS485 interface to third party system
  16. 24V DC operation system
  
  
  Description:
  
  The 8 channel amplifier fault auto-changeover with speaker line impedance surveillance is an integrated controller integrates the amplifier fault changeover with the speaker line surveillance into one 19" 1U unit. The amplifier fault auto changeover will automatically switch into standby amplifier once there is anyone of the 8 amplifiers in case of fault. The switching time is within 1 second. The speaker line impedance supervision enables to supervise the speaker line open circuit, short circuit and impedance fluctuation. Each zone detection time is within 2 seconds, The amplifier fault and speaker line fault will be reminded by front panel visualized indicator, buzzer and two RS485 interface to third party system.
  
  The amplifier fault changeover and speaker line surveillance unit is design with full visual indication. There are 8 amplifier working status indicators, green of normal, yellow of standby and red of fault and distinguished of non-used. There are 8 speaker line monitoring status indicators, green of normal, yellow of standby and red of fault and distinguished of non-used.
  
  There are 8 line inputs 8 line outputs with 24V overriding relay, 8 amplifier inputs of 100V and 8 zone 100V outputs. Two RS485 outputs to inter-work with third party system. Dipswitch for 8 zone enable or disable the monitoring. Auto & manual two operation modes. One calibrate button on front panel to initialize or calibrate each amplifier and speaker line setting. Speaker line impedance surveillance have 10% and 20% fluctuation two options. Expandable from 8 zones to max 192 zones. 24V DC operation system.
   
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exihibition

FAQ:

1. Are you manufacturer?
Yes, we are public address system manufacturer located in Guangzhou, China.
Welcome to visit our factory.

2. Is sample order available? Is free sample available?
Firstly, sample order is available. Secondly, for new clients, we will return the sample fee after big order placed.

3. What's your warranty period?
Our warranty period is 12 months for speaker.

4. What's your payment terms?
We accept Western Union and TT. 30% deposit in advance, balance 70% before shipment.

5. Where is your main market?
Customers are mainly from Europe, Middle East and South Asia.

6. How many days do you need to prepare for the goods?
It takes 30 working days for large order.