Grandstream GSC3518HS 50W Horn Speaker, PoE
IP Horn Speakers

Grandstream GSC3518HS 50W Horn Speaker, PoE

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$319.00

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The Grandstream GSC3518HS 50W Horn Speaker, PoE is a high-power SIP talk-back horn built for outdoor paging, intercom, and emergency communication. Designed for demanding environments, it delivers clear HD audio, a powerful 50W output, and IP66-rated protection to ensure reliable performance in all weather conditions.

Perfect for schools, warehouses, hospitals, public spaces, and large campuses, the GSC3518HS enables organisations to deploy a scalable IP-based PA and intercom system. It supports both SIP and multicast audio, making it easy to integrate with IP phone systems and existing network infrastructure.

Grandstream GSC3518HS 50W Horn Speaker

Grandstream GSC3518HS 50W Horn Speaker, Key Features

High-Power Outdoor Audio – The integrated 50W horn speaker delivers loud, intelligible audio across wide outdoor areas. Ideal for environments with high ambient noise.

Two-Way Talk-Back Communication – Built-in 3 microphones enable clear full-duplex talk-back, allowing real-time communication between users and control points.

AI Noise Reduction Technology – Advanced AI-based background noise suppression improves speech clarity, ensuring messages are heard clearly even in noisy locations.

Intelligent Text-to-Speech – Supports automated voice announcements, helping streamline alerts, notifications, and scheduled messaging.

Grandstream GSC3518HS 50W Horn Speaker – SIP & Multicast Compatibility – Works seamlessly with SIP VoIP systems and multicast paging platforms, offering flexible deployment options.

Rugged Outdoor Design – With an IP66 rating, the GSC3518HS is protected against dust, rain, and harsh environmental conditions.

PoE++ Powered with Cascading Support – Supports PoE++ input and PoE+ output, enabling easy installation and device daisy-chaining to reduce cabling.

  • High-powered 50W speaker with maximum volume of 126 dBA, ideal for coverage of expansive outdoor areas
  • 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios
  • Full-band and wide-band audio codec support, including Opus & G.722
  • Includes differential LINE IN and LINE OUT connections
  • Supports Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback
  • SIP paging, multicast paging, call waiting with priority override, and more
  • One 10/100Mbps network port with PoE/PoE+/PoE++ input, and one 10/100Mbps network port with PoE/ PoE+ output
  • IP66-rated waterproof and dust proof; includes a durable stainless steel bracket suitable for harsh outdoor environments

Applications

The GSC3518HS SIP horn speaker is ideal for:

  • School playgrounds and campus-wide paging
  • Warehouse and industrial communication
  • Hospital and healthcare announcements
  • Public parks and open outdoor areas
  • Transport hubs and large facilities
  • Security intercom and emergency alert systems
  • Commercial buildings and business parks
Grandstream GSC3518HS Datasheet

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