Honeywell 4XD500 – Four-Channel Power Amplifier

Honeywell 4XD500 – Four-Channel Power Amplifier (VARIODYN D1)

The Honeywell 4XD500 is a professional 4-channel Class D power amplifier designed for the VARIODYN D1 voice alarm and public address system. It is used in large-scale emergency voice evacuation and paging installations where high reliability, system supervision, and continuous operation are required.

Each unit provides four independent high-power amplifier channels and is fully integrated into EN54-compliant voice alarm architectures.

Key Features

• 4 × independent amplifier channels (4 × 500 W output)
• Class D high-efficiency amplifier technology
• Designed for 100V PA / voice alarm systems
• Fully integrated into VARIODYN D1 system architecture
• Built-in system supervision and fault monitoring
• Protection against:
  • Short circuit
  • Overload
  • DC faults
  • Thermal overheating
• Automatic self-diagnostics and status monitoring
• Redundant operation capability (amplifier backup function)
• Forced cooling with temperature-controlled fans
• EN54 voice alarm system compliant design

Technical Specifications

• Model: 4XD500
• Type: 4-channel power amplifier
• System: Honeywell VARIODYN D1
• Output Power: 4 × 500 W (2000 W total)
• Amplifier Class: D
• Output Voltage: 100V line system
• Frequency Response: 20 Hz – 20 kHz
• THD: < 0.03% at full load
• Channel Separation: > 92 dB

Electrical & Power

• Mains Supply: 230V AC (50/60 Hz)
• Emergency Power: 24V DC battery backup support
• Power Consumption: depends on load (high-efficiency Class D design)
• Integrated in system with controlled power sequencing

Protection & Monitoring

• Continuous line monitoring and fault detection
• LED status indicators per channel (signal, clip, protect, fault)
• Overload and short-circuit protection
• Temperature-controlled fan system
• Automatic fault reporting to system controller

Physical Characteristics

• Rack size: 19” rack mount, 2U height
• Dimensions: approx. 483 × 88 × 400 mm
• Weight: ~14 kg
• Industrial-grade metal housing
• Designed for 24/7 continuous operation

Applications

• Voice evacuation (EVAC) systems
• Airports, railway stations
• Shopping malls and public buildings
• Industrial facilities and factories
• Large-scale PA and emergency alert systems

Advantages for Buyers

• High power density (4 × 500 W in 2U rack unit)
• Extremely reliable for life-safety systems
• Full system monitoring and fault reporting
• Integrated redundancy capability
• Designed for mission-critical EN54 installations

Short Sales Summary (for listings)

Honeywell 4XD500 Power Amplifier – professional 4-channel Class D amplifier (4 × 500 W) for VARIODYN D1 voice alarm systems. EN54 compliant, with full system supervision, redundancy support, and industrial-grade reliability for emergency and public address installations.