VARIODYN D1 4XD300 – 4 × 300 W Power Amplifier

The VARIODYN D1 4XD300 Power Amplifier is designed to deliver reliable, high-quality audio amplification for voice evacuation and public address systems. Its primary purpose is to provide four independent 100 V amplifier channels, each rated at 300 W, ensuring clear and intelligible announcements during both normal operation and emergency situations. Fully integrated with the VARIODYN D1 system, the amplifier supports continuous monitoring, fault detection, and emergency power operation for life-safety applications.

Where It Can Be Used?

The VARIODYN D1 4XD300 is ideal for medium to large buildings that require dependable, multi-zone voice evacuation and public address coverage. Typical applications include:

• Commercial and high-rise buildings
• Industrial plants and manufacturing facilities
• Airports, railway stations, and transport hubs
• Hospitals and healthcare facilities
• Educational institutions and campuses
• Shopping malls, hotels, and convention centers

Its support for 230 V AC mains and 24 V DC emergency power makes it suitable for installations where uninterrupted audio is critical.

VARIODYN D1 4XD300 – 4 × 300 W Power Amplifier

The VARIODYN D1 4XD300 is a four-channel Class D power amplifier with 100 V symmetrical, unearthed outputs, designed for professional voice alarm systems compliant with EN 54-16. Each amplifier channel operates independently and is controlled and monitored by VARIODYN D1 Digital Output Modules (DOM4-8 or DOM4-24).

The amplifier includes integrated electronic protection against thermal overload and output short circuits. If a cooling unit reaches a critical temperature, the affected channel is automatically disconnected and reconnected once a safe operating temperature is restored. With low distortion and high efficiency (>80%), the 4XD300 ensures excellent speech clarity while minimizing power consumption.

Advantages

• Four independent 100 V amplifier channels
• High-efficiency Class D technology (>80%)
• Automatic thermal overload protection per channel
• Short-circuit protection on speaker outputs
• Continuous monitoring via VARIODYN D1 DOM modules
• Supports 24 V DC emergency power supply
• Low distortion for clear voice announcements
• EN 54-16 compliant for life-safety systems

Areas We Serve

Fire Projects Pvt. Ltd. supplies, installs, and commissions VARIODYN D1 4XD300 Power Amplifiers across Gujarat, including Ahmedabad, Vadodara, Surat, Rajkot, Halol, Sanand, Vapi, Ankleshwar, Dahej, Bharuch, and Gandhinagar. We serve commercial buildings, industrial facilities, infrastructure projects, healthcare institutions, hospitality projects, and public venues.

Why Choose Fire Projects Pvt. Ltd.?

Fire Projects Pvt. Ltd. is a trusted provider of voice evacuation and fire alarm solutions. We offer complete services—from system design and product selection to installation, testing, commissioning, and AMC support. Our expertise with VARIODYN D1 systems ensures your voice alarm infrastructure is reliable, compliant, and future-ready.

 Contact Us: +91 98244 42333 | Email: info@fireprojects.co.in