Grandstream GSC3518HS

Grandstream GSC3518HS – SIP/Multicast Talk-Back Horn Speaker

GSC3518HS is a high-powered SIP and multicast talk-back horn speaker designed for outdoor paging, announcements, intercom, security, schools, campuses, warehouses, hospitals, factories, parks and other large areas.

50W high-fidelity speaker
Maximum volume: Up to 126 dBA
Speaker frequency: 270Hz – 13.2KHz
Speaker sensitivity: Up to 109 dBA at 1m/1W (1kHz)
3 built-in microphones
Microphone pickup distance: Up to 8 meters
AI-based background noise reduction
Intelligent Text-to-Speech (TTS) support
SIP Paging
Multicast Paging
Group Paging
Push-to-Talk (PTT)
Call waiting with priority override
Supports Opus, G.722, G.711, G.726, G.729A/B, iLBC and other audio codecs
1 × 10/100 Mbps Ethernet port with PoE/PoE+/PoE++ input
1 × 10/100 Mbps Ethernet port with PoE/PoE+ output
PoE++ input, IEEE 802.3bt, Class 8
PoE+ output, IEEE 802.3at, up to 25W
Differential LINE IN and LINE OUT
2 × switch-in inputs
1 × switch-out output
DC power input: 24–48V
Supports AirPlay
Supports ONVIF
Supports RTSP/HTTP streaming
Supports local audio file playback
Mobile app audio playback support
QoS support
802.1Q VLAN and 802.1p support
TLS and SRTP security
HTTPS and 802.1X support
Secure Boot
GDMS, TR-069 and encrypted XML provisioning
IP66-rated waterproof and dustproof protection
Durable PC + ABS construction
Aluminum back cover
Stainless steel mounting bracket
Wall or pole mounting
Operating temperature: -30°C to +60°C
Dimensions: 324.6 × 285.3 × 204.3 mm
Weight: 2.87 kg
Ideal for outdoor campuses, schools, warehouses, factories, hospitals, parks, markets and large public areas