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The Grandstream GSC3518HS is a powerful outdoor horn speaker designed for high-fidelity audio communication in demanding environments. Built for durability and versatility, this IP66-rated speaker delivers clear, loud audio for emergency notifications, public announcements, and two-way communication across large outdoor spaces.
The GSC3518HS is ideal for a wide range of applications including educational campuses, industrial facilities, parking structures, transportation hubs, corporate campuses, and emergency notification systems. Its SIP/multicast capabilities integrate seamlessly with existing VoIP and IP-PBX systems, making it a cost-effective solution for facility-wide communication. The talk-back functionality transforms this from a simple speaker into an interactive communication tool, allowing security personnel or facility managers to both broadcast messages and receive responses from the field. The AI-powered noise reduction ensures messages remain intelligible even in noisy outdoor environments, while the intelligent text-to-speech feature enables automated announcements without pre-recorded audio files.
When you choose this Grandstream GSC3518HS speaker, you're partnering with a trusted provider backed by over 250,000 happy customers who rely on our commitment to quality and service. Our team ensures fast fulfillment so you can deploy your communication infrastructure without delay. Every product comes with a warranty and our satisfaction guarantee, giving you complete confidence in your purchase.
Whether you're upgrading your facility's emergency notification system or deploying a comprehensive outdoor communication network, the GSC3518HS delivers the reliability and performance your organization demands. Order today and enhance your facility's communication capabilities with this robust, feature-rich horn speaker.
New items ship in their original manufacturer's packaging. These items are in excellent condition with no blemishes on their housings.
| Manufacturer | Grandstream |
|---|---|
| Model | GSC3518HS |
| Speaker Power | 50W high-fidelity speaker |
| Max Volume (SPL) | Up to 126dBA |
| Microphones | 3 built-in microphones with 26.25 feet (8m) pickup distance |
| Sensitivity | Up to 109 dBA at 1m/1W (1 kHz) |
| Durability Rating | IP66-rated waterproof and dustproof |
| Power Input | PoE++ (up to 71W) or DC 24V/4A - 48V/2A |
| Power Output | PoE+ (up to 25W) for device cascading scenarios |
| Network Interfaces | 2x 10/100 Mbps network ports |
| Audio Capabilities | AI noise reduction, intelligent text-to-speech (TTS), and wide-band codec support (Opus, G.722) |
| Installation | Wall Mount or Pole Mount |
| Physical Build | PC + ABS material with a stainless steel mounting bracket |
| Dimensions (WxDxH) | 285.3mm(W) x 324.6mm(L) x 204.3mm(H) 11.23 x 12.77 x 8.04" |
| 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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