•Durable and weather-resistant construction.

•High SPL, clear and penetrating sound.

•Voice coils precisely wound on aluminum bobbins for efficient heat dissipation.

•The AU-40®XT model features a built-in 100V transformer with easily selectable frequencies/resistance by changing the position of the rotary switch on the back.

•IP 66 protection rating is provided when installed in a sound horn, against foreign particles such as dust and water, making it ideal for outdoor use. Compatible with EN 60529.