The PA-BGS-120W is an SIP network one-way on-demand integrated broadcast amplifier built for projects that require reliable voice delivery, flexible network control, and practical day-to-day broadcasting functions in one compact platform. It is designed for modern IP audio deployments where scheduled announcements, remote management, emergency paging, live broadcasting, and local audio input all need to work together smoothly.
Rather than acting as a simple amplifier at the end of the line, the PA-BGS-120W is positioned as an intelligent broadcast node within a wider network audio system. It supports centralized management, on-demand audio distribution, local backup functionality, and scalable network integration, making it a strong fit for schools, campuses, factories, parks, transport sites, and public facilities.
The PA-BGS-120W uses a domestic dual-core ARM Cortex-A7 processor running at up to 1.2GHz, supporting a highly integrated hardware design focused on long-term operational control and platform independence. For project users, that translates into a more dependable device foundation for systems that need to run continuously, stay manageable, and remain stable over time.
It is paired with a deeply customized Linux operating system and an internal watchdog monitoring mechanism. This combination helps improve system robustness, strengthens operational security, and supports long-duration use in real engineering deployments. With mean trouble-free operation exceeding 10,000 hours, the PA-BGS-120W is built for practical field use rather than occasional playback only.
A major selling point of the PA-BGS-120W is how many different control paths it supports. Broadcast tasks can be issued through a broadcast server, network dispatch console, intercom phone, mobile app, and other integrated control methods. This makes it easier to unify daily announcements and urgent broadcasts within one operating structure instead of splitting them across different systems.
It supports background music, timed broadcasts, TTS voice synthesis, emergency paging, radio live streaming, and alarm broadcasting. That range of functions gives operators the flexibility to handle routine communication and urgent notification tasks from the same amplifier platform, which is especially useful in distributed sites where fast switching between normal and emergency broadcasting is important.
The PA-BGS-120W includes a comprehensive web-based remote management interface, allowing users to access the device through a browser using its IP address. From the management page, operators can configure system parameters such as network settings, SIP account management, volume control, online packet capture, and online firmware upgrades.
This is especially valuable for installers and maintenance teams managing multiple network amplifiers across different locations. It reduces on-site maintenance time and improves service efficiency, while also giving users stronger visibility into system status and configuration behavior.
In addition to web management, the amplifier also supports a dedicated client configuration path. These two setup methods provide more flexibility for engineering teams and support both DHCP and static network modes, as well as cross-subnet search and configuration. In larger projects, that makes deployment and commissioning more efficient.
The PA-BGS-120W integrates a network audio codec module and supports TCP/IP, UDP, SIP, and HTTP protocols. This makes it easier to integrate with modern IP audio systems, SIP-based paging environments, and broader network communication platforms. It supports 16-bit stereo CD-quality audio transmission and works with MP3 and WAV formats, helping deliver clean broadcast playback and better voice intelligibility.
For system designers, this means the amplifier can serve as a dependable one-way broadcast endpoint while still fitting naturally into larger network architectures built around centralized control, remote scheduling, and IP-based voice distribution.
The PA-BGS-120W is built around a Class-D amplifier design with a full-loop feedback network, helping reduce distortion and maintain stronger audio consistency during higher output operation. This gives the amplifier a more controlled and stable performance profile, especially in applications where voice intelligibility must remain clear over longer broadcast periods.
Its 120W output capacity makes it well suited to medium-scale broadcast zones where operators need stronger coverage than entry-level amplifiers can provide, but still want a compact, integrated network product that is easy to deploy and manage.
The use of dual PFC switch-mode power supply technology helps improve amplifier efficiency and reduce unnecessary power consumption. With support for a wide AC input range from 90V to 265V, the PA-BGS-120W is more adaptable to different electrical conditions and can be deployed more easily across a wider range of project environments.
This wide-voltage capability supports both operating stability and practical deployment flexibility, especially in projects where power quality may vary or where standardized installation across different regions is required.
The amplifier uses an intelligent temperature-based cooling design that automatically adjusts thermal management according to operating conditions. The internal fan is designed for efficient heat dissipation with relatively low noise, helping the amplifier balance cooling performance and quiet operation.
It also includes intelligent energy-saving logic. When no signal is present, the amplifier can automatically enter standby mode, with standby power consumption kept at 10W or below. For larger distributed systems, this helps reduce energy waste while keeping devices ready for broadcast tasks.
The PA-BGS-120W provides two AUX inputs and three MIC inputs, with independent volume and bass/treble adjustment controls. This gives users more local flexibility when handling microphones, auxiliary audio sources, or mixed broadcast scenarios. It is particularly useful in projects where local input still matters, even within a centrally managed IP architecture.
One notable operational advantage is support for local paging during network outages. That means the amplifier is not fully dependent on normal network conditions for basic local announcement capability, which adds practical resilience for sites that need voice communication continuity.
The amplifier also provides two auxiliary audio signal output interfaces for connecting external power amplifiers. With standard RCA interfaces, expansion wiring remains straightforward, allowing users to scale the audio system more easily when higher output or broader distribution is required.
This makes the PA-BGS-120W a useful core device for growing systems that may begin with one amplifier zone and later extend into larger multi-zone or multi-building broadcast deployments.
The PA-BGS-120W includes a reliable intelligent protection system covering soft start, DC protection, short circuit, overheat, overload, and limiter protection. These protections help improve long-term device safety and reduce the risk of service interruption during abnormal operating conditions.
Soft-start capability also helps prevent the device from drawing a high inrush current during startup, which reduces interference to other electrical equipment connected to the same power environment. This is a valuable engineering detail in projects with multiple linked devices.
The amplifier supports status indicators for level, protection, and standby conditions, helping technicians identify device state more quickly during operation and maintenance. It also includes lightning surge protection capable of resisting 4KV-level surge impact, which is a strong practical advantage in field deployment.
For projects that require centralized supervision, an optional RS485 monitoring module can be added to monitor amplifier operating status in real time and support more intelligent equipment management across the system.
The PA-BGS-120W is well suited to schools, colleges, and training campuses where users need scheduled bells, daily notices, emergency paging, and flexible zone-based audio distribution. Its mix of centralized network management and local control support makes it especially practical in education environments.
In factories and industrial parks, the amplifier can be used for shift reminders, production notices, emergency broadcasts, and routine voice communication. Its robust platform, flexible inputs, and network management features help support more structured plant-wide communication.
The amplifier is also a strong fit for parks, scenic areas, community sites, and municipal public broadcasting systems. It supports timed messages, background audio, TTS announcements, and centralized maintenance, which are all useful in wide-area public communication projects.
For terminals, station buildings, logistics facilities, and other transport-related sites, the PA-BGS-120W provides a good balance of power, remote management, and network flexibility. It can work as part of a larger voice communication architecture where announcements, alerts, and coordinated audio distribution need to be managed efficiently.
The PA-BGS-120W offers a practical mix of intelligent networking, reliable audio amplification, flexible local interfaces, and centralized management capability. It is designed for users who want more than a conventional PA amplifier and need a network-ready broadcast device that can support both structured daily operation and urgent voice communication.
With its stable domestic hardware platform, Linux-based architecture, multiple control paths, local paging support, and scalable network integration, the PA-BGS-120W gives project teams a dependable option for building smarter and more manageable broadcast systems.
The PA-BGS-120W is an IP network one-way on-demand integrated broadcast amplifier designed for network audio broadcasting, scheduled playback, paging, alarm messaging, and centralized remote control.
Yes. It supports local paging functionality even during network interruption, which helps maintain basic on-site announcement capability when the normal IP path is unavailable.
Users can manage it through a web interface or a dedicated client. It supports parameter configuration, network settings, SIP account management, volume control, online packet capture, firmware upgrade, and cross-subnet discovery and setup.
It is well suited to schools, campuses, factories, parks, stations, public facilities, and other projects that need scheduled announcements, centralized broadcasting, emergency paging, and flexible IP-based audio management.
| Item | Specification |
|---|---|
| Model | PA-BGS-120W |
| Network Interface | Standard RJ45 Input |
| Transmission Rate | 10/100 Mbps |
| Supported Protocols | TCP/IP, UDP, SIP, HTTP |
| Audio Formats | MP3, WAV |
| Audio Mode | 16-bit Stereo, CD-quality Sound |
| Sampling Rate | 8 kHz ~ 16 kHz |
| Tone Control | Bass: ±10 dB at 100 Hz; Treble: ±10 dB at 10 kHz |
| Input Sensitivity & Input Impedance |
MIC1/2/3: 5 mV / 600 Ω, unbalanced TRS input |
| Overload Source EMF |
MIC1/2/3: > 12 dB, unbalanced TRS input |
| Input Channels | 2 x AUX (line) inputs + 3 x MIC inputs |
| Rated Power | 120 W |
| Standby Power Consumption | < 10 W |
| Frequency Response | 80 Hz ~ 16 kHz (+1/-3 dB) |
| Signal-to-Noise Ratio | MIC1/2/3: 66 dB; AUX1/2: 80 dB |
| Total Harmonic Distortion (THD) | 0.5% at 1 kHz, 1/3 rated output power |
| Channel Crosstalk Attenuation | ≤ 50 dB |
| Output Mode | 100 V constant-voltage output (amplitude limit: 135 V) |
| Cooling | Forced air cooling from front to rear; built-in fan activates at heatsink temperature 55 °C |
| Protection Circuits | Soft start, DC protection, short-circuit protection, overheat protection, overload protection, amplitude limit protection |
| Lightning Protection | 4 kV surge lightning protection |
| Power Supply | AC 90–265 V / 50 Hz |
| Weight | 2.60 kg |
| Dimensions | 484 × 210 × 45 mm |
| Operating Temperature | 5 °C ~ 40 °C |
| Operating Humidity | 20% ~ 80% relative humidity, non-condensing |
