C-YARK​ CY-BS130 IP Network Power Amplifier 

The C-YARK CY-BS130 is a 120W IP network power amplifier designed for modern paging, background music, and emergency broadcast systems in commercial and industrial environments. It connects directly to 100V/70V line speakers over long distances and receives audio streams from an IP network, making it ideal for schools, factories, office buildings, campuses, and public venues. With built-in howling cancellation, local inputs, multi-level priority control, and flexible standby settings, the CY-BS130 combines reliable amplification with intelligent IP-based audio management.
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Key features & benefits

• 120W IP network amplifier: Built-in 120W power stage allows direct connection to external speakers for area-wide broadcast over 100V/70V or 4–16 Ω lines.
• Dual RJ45 network ports: Two 10/100M RJ45 interfaces support WAN/LAN networking and changeover, ensuring stable connection to the IP audio server.
• Built-in speaker & talkback: Internal 3W full-range speaker with howling cancellation supports local monitoring and talkback by dialing the IP terminal number.
• Versatile audio I/O: Includes 1 AUX input, 1 MIC input, 1 audio output, and 1 RS-232 serial port output for integration with mixers, paging consoles, or control systems.
• ​Multiple audio formats: Supports MP3, WMA, and OGG playback with bitrates up to 192 kb/s (44.1, 16) and 320 kb/s (44.1, 16) for clear and stable audio.
• ​3-level priority management: Network alarm has the highest priority and, once completed, the system automatically returns to local music playback.
• Fire alarm boosting outputs: Provides one 70W/24V cutting power output and two short-circuit outputs to increase speaker volume automatically during fire alarms.
• ​Status indicators & protection: Front-panel indicators show power, protection, working status, and peak reduction, while the amplifier is protected against overload, overcurrent, and overheating.
• ​Flexible power output modes: Supports 100V, 70V, and 4–16 Ω outputs to match different speaker lines and installation scenarios.
• ​Terminal feedback speech: Can route audio from one terminal to one or more specified terminals via network feedback for zone-based announcements.
• ​Adjustable standby time: Standby time on the rack terminal can be set from 1–99 minutes, allowing automatic power-down of the amplifier after tasks based on each zone’s needs.
• ​TF card backup broadcasting: Optional TF card module can play scheduled chimes or messages automatically if the network is down, with timing tasks preloaded from the server to keep content up to date.​