System installers in need of an all-weather speaker with an inspiring acoustic performance will be impressed with the EN54-certified Tannoy 4" Coaxial Surface-Mount Loudspeaker with Transformer, a pair of white sound reinforcement speakers well suited for stereo or mono background/foreground music applications in theme parks, hotels, restaurants and bars, retails stores, as well as corporate AV, residential developments, and houses of worship. EN 54-24 certification for fire detection and fire alarm systems makes the DVS 4T (EN 54)-WH the perfect choice where safety is a top priority.