VES-661 A+B

Voice alarm ceiling loudspeaker VES-661 A+B

Two separate loudspeakers, two transformers and two terminals. A + B system. The latest DNH Dual speaker solution for project installations requiring 100% levels of redundancy. 25% cost reductions achieved while maintaining fully independent circuits from a separate speaker, transformer and termination block behind the same grille. In phase connection from separate A + B systems within one loudspeaker. Ideal for those small rooms and spaces.


  • Mounting with 3 screws
  • Effective frequency Range: 240 – 13000 Hz
  • Weight: 2,0 kg



Installation, Operation and maintenance

  • Do not open loudspeaker when energized.
  • Two separate loudspeakers, two transformers and two terminals (A + B system)
  • Install the steel box into the cut-out hole turning the screws connected to the three hooks, screw clockwise until the ring is fixed to the ceiling.
  • Lead cable through box and connect to terminal.
  • If 70V, replace red cable with the green cable in the terminal.
  • Turn the grill gently clockwise within the ring until it stops.
  • Transformer compliant to British standard 5839.
  • For optimum performance, always use the correct voltage / power limits as stated.
  • This loudspeaker comes with a two years warranty against factory defects.