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The Grandstream GSC3518HS is a robust outdoor horn speaker designed for demanding commercial and industrial applications. Built to deliver powerful audio performance and reliable two-way communication, this IP66-rated speaker combines exceptional durability with advanced telephony features for paging, broadcasting, and emergency notification systems.
The GSC3518HS is engineered for businesses that require reliable outdoor communication systems. Whether you're managing a manufacturing facility, educational campus, parking lot, warehouse, or public venue, this horn speaker provides the audio clarity and range needed for effective announcements and emergency notifications. The AI-based background noise reduction ensures messages are intelligible even in noisy industrial environments, while the talk-back capability allows for two-way communication without additional equipment.
The device's SIP compatibility integrates seamlessly with VoIP phone systems and unified communications platforms, making it an ideal addition to existing business infrastructure. Priority override functionality ensures that emergency announcements take precedence, while multicast and group paging capabilities allow targeted messaging to specific zones or broadcast to all connected speakers simultaneously.
When you purchase the Grandstream GSC3518HS from us, you're backed by a company with over 30 years of industry leadership and a proven commitment to quality. Our dedicated sales representatives are available to help you select the right communication solution for your specific needs and ensure seamless integration with your existing infrastructure.
Every product comes with a comprehensive warranty, and we stand behind our offerings with a satisfaction guarantee. Whether you're outfitting a single location or deploying speakers across multiple sites, you can trust in our fast fulfillment process to get your equipment delivered when you need it. Upgrade your facility's communication capabilities with confidence today.
These products are brand new and have never been used. They arrive in the original manufacturer packaging in pristine, factory-fresh condition.
| Manufacturer | Grandstream |
|---|---|
| Model | GSC3518HS |
| Speaker | 50W high-fidelity speaker with a frequency of 270Hz-13.2KHz and sensitivity up to 109 dBA at 1m/1W(1 kHz) |
| Max SPL | Up to 126dBA |
| Microphone | 3 microphones, AI noise reduction, intelligent text-to-speech (TTS) support |
| Voice Pickup | 26.25 feet (8m) pickup distance |
| Telephony Features | SIP Paging, Multicast Paging, Group Paging, Push-to-Talk (PTT), and call-waiting with priority override |
| HD Audio | Yes, Crystal clear HD audio with full-band and wide-band audio codec support |
| Audio Codecs | G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.723, G.729A/B, and in-band and out-of-band DTMF |
| Network Interfaces | 1x 10/100 Mbps port with integrated PoE/PoE+/PoE++ input and 1x 10/100 Mbps port with integrated PoE/PoE+ output |
| PoE | Max Input: PoE++ compliant with IEEE 802.3bt Class 8, providing a maximum power of 71 Watts and max input voltage of 57V. Max Output: PoE+ compliant with IEEE 802.3at Class 4, providing a maximum power of 25 Watts |
| Wi-Fi | - |
| Bluetooth | - |
| Auxiliary Port | 2x 2-pin Switch-in input ports, 1x 2-pin Switch-out output port, 1x differential line in port, 1x differential line out port, 2x network ports, 1x DC24V-48V port, and a reset button |
| Durability | IP66-rated waterproof and dustproof, made with durable PC + ABS material, an aluminum back cover, and a stainless steel mounting bracket |
| OS (Operating System) | - |
| Special Features | AI-based background noise reduction, intelligent text-to-speech (TTS), device cascading support, and compatibility with Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback |
| Dimensions | 11.23" x 12.78" x 8.04" |
| Installation Type | Wall Mount and Pole Mount |
| Optional Accessories | Grandstream 24V Power Supply (S-24V-6.25A-PS) Mounting Accessories Grandstream GS-POE60W-MG |
| Included | 1x GSC3518HS Horn Speaker 1x mounting kit 1x quick installation guide |
Rest assured, if you order the wrong items, don't like the model, or just don't need it anymore we accept returns with NO restocking fees. Whether you want something different or just a credit, we have you covered! This policy goes hand in hand with our company culture of delivering outstanding customer satisfaction.
If you need assistance finding a different product our awesome staff is ready to help. Contact us for expert support.
All products purchased from us are covered by a 1-year warranty from the date of purchase, covering manufacturing defects and functional failures under normal business use.
Please note that batteries are an exception to this policy. Batteries are covered by a 90-day warranty due to their consumable nature.
This warranty does not cover damage caused by misuse, unauthorized modifications, or improper handling. For any warranty claims, please contact our support team with your purchase details and a description of the issue.
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