The IP A1SC15 is a network-based horn speaker engineered to deliver powerful, intelligible voice announcements in challenging outdoor and industrial settings. Designed for integration into IP-based communication systems, the IP A1SC15 is capable of producing a sound pressure level of up to 124 decibels when powered by a PoE Plus source. Its IP66-rated enclosure ensures protection against dust and water ingress, making it suitable for exposed locations such as transport hubs, factories, loading bays, and school campuses. The IP A1SC15 supports standard SIP protocols and ONVIF for compatibility with a wide range of VoIP and video management platforms. With support for 20 multicast ports, the speaker enables flexible zone paging, facilitating site-wide or area-specific announcements. Internal audio storage allows for playback of pre-recorded messages or alerts, which can be triggered via control inputs or HTTP-based remote access. The unit includes an integrated amplifier that delivers 8 watts of output using PoE and up to 15 watts with PoE Plus, ensuring consistent audio clarity across large spaces. The IP A1SC15 offers a dependable and interoperable solution for networked public address needs, supporting facility-wide safety communication and operational messaging with professional-grade performance.