EVA-500 - 500 W high‑efficiency Class‑D power amplifier designed for PA / VA systems, 70/100 V outputs, balanced / unbalanced inputs, full fault monitoring, automatic protection, booster capability, seamless integration via RJ45 control and audio link

500 W high‑efficiency Class‑D power amplifier designed for PA / VA systems, 70/100 V outputs, balanced / unbalanced inputs, full fault monitoring, automatic protection, booster capability, seamless integration via RJ45 control and audio link

The EVA‑500 is a 500 W Class‑D power amplifier designed for audio signal amplification within Rondson's EVA‑3000 range of evacuation and public address systems.

Lightweight, efficient, and reliable, it features balanced and unbalanced audio inputs, 70/100 V outputs, and includes a 100V audio input for booster amplifier operation, easily increasing the system's available power.

Through its RJ45 port, the EVA‑500 receives audio signals and commands from the controller and outputs the operating status, fully integrating into the PA / VA system. The unit implements an advanced self-protection system against overtemperature, overcurrent, overvoltage, undervoltage, overload, and short circuit. In the event of a mains power failure, it automatically switches to the 24 V_DC backup power supply, ensuring operational continuity.

Forced-air cooling and automatic diagnostics help maintain stable performance even under critical conditions, while front-panel indicators allow for instant monitoring of the amplifier's status.

User benefits

• Full integration with the controller via RJ45 for audio, commands, and status feedback
• 100 V booster input
• Efficient self-protection system
• Automatic switching to 24 V_DC backup power in the event of a mains failure
• Forced-air cooling for stable performance over time
• Front LED indicators for immediate monitoring of power, faults, and protection
• EN 54-16 and CE/CB certifications, compliant with evacuation system requirements

Areas of use

• EN 54-16 certified voice evacuation and fire alarm systems
• Sound distribution systems in public, commercial, and industrial buildings
• Integration as a main amplifier or booster in modular PA / VA systems
• Installations requiring operational continuity and constant status monitoring
• Structures such as schools, hospitals, shopping centers, offices, hotels, and complex infrastructure

Technical characteristics

• Main power supply: 100 - 240 V_AC 50/60 Hz
• Backup power supply: 21.5V - 28.5 V_DC
• Power consumption: < 700 W
• Fuse: T10AH 250 V
• DA output: 70/100 V
• Max. output power: 500 W
• Frequency response: 80 Hz - 18 kHz (+1, -3 dB)
• Input impedance: 20 kohm
• PA input (RJ-45): 1.4 V
• Line in: 1.4 V
• Booster input: 100 V
• Link output: 1.4 V
• SNR: 100 dB +5%, A-weighted
• THD: < 0.1% (at 1/3 rated power, 1 kHz)
• Indicator lights: power supply, main power fault, backup power fault, protection and VU meter
• Cooling method: forced air cooling
• Relative humidity: < 95%, without condensing
• Operating temperature: -10 to 55 °C 
• Storage temperature: < 95%, without condensing
• Dimension (W x H x D): 48.2 x 8.8 x 40.7 cm
• Net weight: 11.2 kg