This digital 100 V amplifier series, compliant with IEC 268-3, is designed for use in public address (PA) and voice alarm systems (VAS) according to VDE 0828 / DIN EN 50849, as well as EN 54-4 and EN 54-16. Offering two or four 500 W RMS outputs, these compact, energy-efficient amplifiers are key components of the VARES-3000 system.

With a >90 % efficiency rating and compact chassis, the units generate minimal heat, reducing cooling demands and installation space. The integrated digital power supplies and independent amplifier channels allow for redundant A/B operation, ensuring high availability in critical installations.

Comprehensive protection features (short-circuit, overload, overheating) are built in, with automatic output disconnection in case of fault. Front-panel LEDs provide clear indication of signal status, clipping, protection and power.

Key Technical Features:

• Type: Digital 100 V amplifier (IEC 268-3)
• Output Power:
• 2× 500 W RMS or
• 4× 500 W RMS @ 100 V
• Efficiency: > 90 %
• Cooling: Thermally controlled fans (active only under full load)
• Protection:
• Short-circuit, overload, overheat
• Automatic output cut-off on fault
• Power Supply: Integrated, redundant digital supplies – A/B ready
• Inputs:
• 2 or 4 balanced, regulated audio inputs (screw terminals)
• Pilot tone input for line supervision
• Outputs:
• 2 or 4 isolated 100 V speaker outputs (screw terminals)
• Emergency Power: 2 or 4 × 24 V DC inputs
• Standby Control: Remote-activated low-power standby mode
• Status Indicators: LEDs for signal, clip, protect, power
• Compliance: EN 54-4, EN 54-16
• Integration: Part of the VARES-3000 certified system

Key Features:

• Fully redundant (A/B) operation via dual internal power supplies
• High-efficiency amplification reduces energy and thermal load
• Ideal for mission-critical PA and evacuation systems
• Minimal fan usage – low noise and maintenance
• Space-saving design for compact rack installations
• Simplified wiring via screw terminal connections