SL50 is a high-performance SIP network sound column supporting the SIP protocol. Users can register it with up to three SIP systems to meet different functional requirements. It is applicable to various broadcasting scenarios and high-definition background music playback. Equipped with four low-frequency speakers and one high-frequency speaker drive unit, it features high sensitivity and a wide frequency band, endowing sound with clarity, transparency, and rich saturation. The built-in Class D power amplifier supports local or server-side volume adjustment. With an IP65 protection rating and good environmental temperature adaptability, the SL50 can be installed and deployed in most outdoor environments and can even operate normally in some extreme conditions.

Speaker units: 4 x 3.25-inch bass units + 1 x 25ø tweeter unit 
Sound pressure: 85dB/1m/1W 
Maximum sound pressure level: 105dB 
Amplifier: Class D power amplifier 
Rated power: 8Ω 50W 
Frequency response range: 100Hz – 20KHz 
Coverage parameters: 135° 50m, up to 70 meters 
Material: Aluminum diaphragm 
Sound effect: Mono 
Audio coding: G.722, G.711 A-law, G.711 U-law, Opus 
Audio stream: MP3 sampling rate 8 – 48KHz, bit rate 64 – 320kbps, mono or stereo 
Network interface: 10/100Mbps 
4G network module: Optional 
Power input: DC36V 
Storage: 128MB RAM, 256MB flash memory 
Power input: DC36V 
Shell: Aluminum profile, white paint rust-proof treatment 
IP protection grade: IP65 
Weight: 4.5Kg 
Dimensions: 101.6*100*470mm 
Installation method: Bracket installation

1. Supports 4G network communication services. 
2. With open SIP protocol support, it can be integrated with third-party SIP servers. It also supports G.722 wideband high-definition voice coding to achieve high-fidelity SIP broadcasting. 
3. Driven by high-low frequency multi-speaker units, it features a wide frequency response, high sensitivity, and excellent sound quality, delivering a unique auditory experience for listeners. 
4. Equipped with a built-in Class D power amplifier, it supports local or server-side volume adjustment, ensuring both wide sound coverage and auditory relaxation & comfort. 
5. Supports SIP multi-account functionality, allowing users to register with up to three SIP systems to meet different functional requirements.