The BFAUDIOPRO VA4550I is a professional 4-channel power amplifier designed in a standard 2U chassis. The device utilizes Class H amplification circuitry, optimizing performance and energy efficiency. It is equipped with a comprehensive protection system—including short-circuit, thermal overload, and DC leakage protection—ensuring reliability and extending lifespan for both fixed installations and mobile applications.
Key Technical Specifications & Features
● Channel Configuration: 4 independent amplification channels.
● Cooling System: Automatic variable-speed cooling fans with front-to-back airflow, ensuring stable operation.
● Connectivity: Integrated 4 x XLR inputs and 4 x XLR outputs (link), along with 4 x Speakon NL4 connectors for speaker output.
● Load Compatibility: Operates efficiently at both 8Ω and 4Ω impedances.
● Control & Monitoring:
Input sensitivity selector switch.
Independent volume controls for each channel.
LED indicators for Power and Signal status on each channel.
● Protection Features:
Soft start.
Overload protection.
Short-circuit protection.
Over-temperature protection.
Output DC offset protection.