An all-weather, low-distortion horn loudspeaker for use in the tunnel or pre-portal area with 100V technology is excellent for speech and voice announcements in this acoustically challenging environment due to its excellent speech intelligibility.

Suitable for use in the tunnel itself (boundary level/half sphere) as well as for use in the pre-portal area (full sphere)

"- Matching transformer for 100V technology with power regulation
- Suitable for wall and ceiling mounting
- Corrosion-resistant stainless steel mounting brackets
- Resistant to exhaust fumes, de-icing salts and road dust
- Modeling data available for Ease and Ulysses
- V4A 1.4571 stainless steel opening cover against animals and dust"