Grandstream SIP/Multicast Intercom Talk-Back Horn Speaker GSC3518HS

Grandstream SIP/Multicast Intercom Talk-Back Horn Speaker GSC3518HS

The GSC3518HS is a SIP/multicast talk-back horn speaker that provides crystal clear HD audio, a high-fidelity 50-Watt speaker, and IP66-rated water and dust protection, ideal for outdoor campuses, public spaces, large offices, school playgrounds, hospitals, parks, warehouses, and more.

Features:

• 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 dustproof; includes a durable stainless steel bracket suitable for harsh outdoor environments

High-Powered 50-Watt Speaker

A 50W speaker with a maximum volume of 126dBA allows the GSC3518HS to provide expansive coverage throughout large indoor and outdoor spaces.

3 Built-In Microphones

3 built-in microphones, AI-based background noise reduction, and intelligent text-to-speech ensures every word is heard clearly in talk-back scenarios.

Hear Everything Clearly

AI noise reduction blocks out background noise to ensure that the 3 built-in microphones capture every important voice and sound, providing maximum security protection.

Protection from the Elements

IP66-rated waterproof and dustproof protection and durable PC + ABS material allows the GSC3518HS to perform in harsh outdoor environments.

Ideal for Large Venues

The GSC3518HS was designed for public spaces, schools, warehouses, parks, hospitals, factories, ports, markets, and other large indoor and outdoor venues.

Technical Specifications:

Speaker
Speaker Power: 50 W High-Fidelity Speaker
Frequency Response: 270 Hz – 13.2 kHz
Sensitivity: Up to 109 dBA at 1 m / 1 W (1 kHz)

Microphone
Microphones: 3 Built-In Microphones
Pickup Distance: Up to 8 m
Noise Reduction: AI Noise Reduction
Text-to-Speech Support: Intelligent TTS Support

Auxiliary Ports

• 2 × 2-Pin Switch-In Input Ports
• 1 × 2-Pin Switch-Out Output Port
• 1 × Differential Line-In Port
• 1 × Differential Line-Out Port
• 2 × Network Ports
• 1 × DC 24 V – 48 V Port
• 1 × Reset Port

Network Interfaces

• 1 × 10/100 Mbps Port with Integrated PoE/PoE+/PoE++ Input
• 1 × 10/100 Mbps Port with Integrated PoE/PoE+ Output

Power Over Ethernet (PoE)
PoE Support: PoE, PoE+, PoE++

Telephony Features

• SIP Paging
• Multicast Paging
• Group Paging
• Push-to-Talk (PTT)
• Call Waiting with Priority Override

Security

• User and Administrator-Level Password Protection
• 256-Bit AES Encrypted Configuration File
• TLS
• SRTP
• HTTPS
• 802.1X Media Access Control
• Secure Boot