VoIP Amplifier JWDTE02

The JWDTE02 is a network-enabled pre-amplifier (IP amplifier) engineered for versatile audio systems across demanding environments. It supports multiple input sources, including three line inputs, two microphone inputs, and one dedicated MP3 input. Designed for reliability, it operates stably from -20°C to 60°C at up to 90% humidity and features an IPX6-rated waterproof enclosure with built-in thermal protection. The unit delivers high-fidelity audio with a wide frequency response and low distortion. With selectable communication protocols and exceptional cost-effectiveness, it is an ideal solution for public address applications in campuses, tourist attractions, airports, and similar venues.

Widely used in：
MARINE ENVIRONMENT
HIGHWAY SHOULDER
SUBWAY STATION
TUNNEL
UNDERGROUND FACILITY
RAILWAY PLATFORM
MINING SITE
OTHERS
KEY FEATURES

Designed for small to medium public address systems. Features 1× RJ45 network port (SIP 2.0 compliant), 5 inputs (3 mic + 2 line), and an auxiliary output. Supports 100V/70V constant voltage and 4-16Ω constant impedance output, with power rating from 240W to 500W. Includes master/independent channel volume controls, bass/treble adjustment, and MIC1 auto mute function (0 to -30dB). Built-in 5-segment LED level meter, noise reduction muting circuit, full short-circuit/over-temperature protection, and temperature-controlled cooling fan. Industrial barrier strip terminals ensure reliable connections.

Supported protocols SIP (RFC3261, RFC2543)
Power supply AC 220V +10% 50-60Hz
Output power 70V/100V constant voltage output
Frequency response 60Hz – 15kHz (±3dB)
Non-linear distortion <0.5% at 1kHz, 1/3 rated output power
Signal-to-noise ratio Line: 85dB, MIC: >72dB
Adjustment range BASS: 100Hz (±10dB), TREBLE: 12kHz (±10dB)
Output adjustment <3dB from no signal static to full load operation
Function control 5* volume controls, 1* bass/treble control, 1* mute control, 1* power supply
Cooling method DC 12V fan with forced air cooling
Protections AC fuse x8A, load short circuit, overtemperature
PACKAGE

Each product is shipped in durable, protective packaging designed for secure transport and storage. The packaging features impact-resistant materials and clear labeling for easy handling, with OEM and custom packaging options available.

Quality VoIP amplifier JWDTE02 in its packaging, ready for installation. The image shows the amplifier securely packed in a cardboard box with protective foam inserts.
FREQUENTLY ASKED QUESTIONS
What is an IP Network Amplifier, and how is it different from a traditional amplifier?
An IP Network Amplifier (also known as a network decoding amplifier) is a device that receives and controls audio signals via a standard Ethernet (IP network). The key difference from traditional analog amplifiers is that it transmits and processes digital audio streams and network control commands instead of analog audio lines. This enables long-distance, lossless transmission, independent multi-zone control, and easy integration into existing computer networks and intelligent systems (such as security or fire alarm systems). It serves as the cornerstone for building modern, unified public address systems.
What is the product's waterproof and environmental rating? Can it be used outdoors or in damp locations?
Absolutely. The JWDTE02 features an IPX6-rated waterproof enclosure, protecting it against powerful water jets. Furthermore, it operates reliably within a wide temperature range of -20°C to 60°C and up to 90% relative humidity. These characteristics make it suitable for long-term, stable operation in harsh environments such as outdoors, basements, or garages where moisture, dust, or significant temperature variations are present.
What audio inputs and outputs does it support?
It offers highly flexible connectivity. For inputs, it provides 3 line inputs, 2 microphone inputs, and 1 MP3 input, allowing simultaneous connection of multiple audio sources. For outputs, it supports both 100V / 70V constant voltage output and 4-16Ω constant impedance output, making it compatible with the vast majority of public address speakers on the market, which simplifies system design and upgrades.

This IP amplifier is designed for command and dispatch broadcasting systems in mission-critical sectors. It is widely deployed in public safety (including police, armed police, fire, and civil defense), defense, transportation (railway), energy (power, petroleum, mining), forestry, and government agencies. The system enables rapid emergency response and integrates multiple communication means into a unified platform.

The JWDTE02 IP Network Amplifier serves as the core audio processing and distribution node within a modern, unified command and broadcast solution. This system is engineered to deliver reliable, intelligible, and immediate audio communication across extensive and complex operational environments.

System Architecture & Workflow

The solution centralizes audio from diverse sources—including wired/wireless microphones, line-level inputs from dispatch consoles, and digital media—into the JWDTE02 amplifier. Via standard IP networks (LAN/WAN), it receives, amplifies, and processes these signals. The amplifier then delivers high-power output to strategically placed speaker zones (using 100V/70V or low-impedance lines), enabling both targeted and campus-wide broadcasting. A central management software platform allows for remote device monitoring, zone paging, scheduled playback, and emergency alert activation from a single interface.

JWDTE02 3

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