Tunnel loudspeaker

Loudspeaker Tunnel-500 / DUP-40

The Tunnel-500 is a 40W, 100V IP67 weather proof flare. It is the largest flare from DNH, tailormade for tunnel projects in combination with DUP-40 driver unit.



  • Dual bracket mounting
  • Frequency range: 450 – 8125 Hz
  • Weight: 13 kg 



Installation, Operation and maintenance

  • TUNNEL-500 with DUP-40 is designed to be very directional and therefore excellent for tunnel applications.
  • When using the DUP-40 driver use enclosed gasket. Screw driver unit into TUNNEL – 500 until the driver is in contact with the gasket, then continue screwing the driver for 180˚ to 270˚. UNEF 1 3/8 -18 thread.
  • Remove lid, lead cable through cable gland, connect to terminal and choose required power on transformer.
  • Screw lid back into place 2 – 3 Nm.
  • Fasten brackets and choose wanted angle of loudspeaker.
  • Do not open loudspeaker when energized.
  • For optimum performance, always use the correct voltage / power limits as stated.
  • This loudspeaker comes with a two years warranty against factory defects.