Cloud Electronics CA4250 4-Channel 250W 70/100V Class D Power Amplifier

Cloud Electronics CA4250 4-Channel Amplifier

The CA4250 4-Channel Amplifier is part of Cloud's advanced CA Series, engineered to deliver exceptional audio performance and installation flexibility for commercial sound systems. With 4 x 250W channels (1 kW total output), the CA4250 can power both low-impedance (≥4Ω) loudspeakers and 70V/100V-line systems directly, no transformers required.

Its Class D amplifier design ensures superior energy efficiency and low heat dissipation, while the Automatic Power Down (APD) feature reduces consumption to under 2.5W when idle. A remote power control input allows the amplifier to be switched into or out of standby via an external contact closure, ideal for integration in automated systems.

Each channel provides independent input routing, high-pass filtering, and output configuration options, ensuring the CA4250 adapts easily to multi-zone installations. Built-in thermal, DC offset, and overcurrent protection safeguards both the amplifier and connected loudspeakers. With universal 100-240 VAC operation, variable-speed cooling, and transformerless output stages, the CA4250 delivers reliable, compact, and efficient performance for retail, hospitality, corporate, and entertainment venues.

• Four independent amplifier channels delivering 250W each (1 kW total)
• Drives 70V/100V-line or low-impedance (≥4Ω) loudspeakers directly, no transformers needed
• Class D design for high efficiency and reduced heat output
• Automatic Power Down mode with < 2.5W standby consumption
• Remote standby/wake control for integration with external systems
• Selectable per-channel input routing, impedance mode, and high-pass filter
• Balanced line-level inputs and individual channel-level controls
• Variable-speed forced-air cooling for stable long-term operation
• Built-in thermal, DC, and overcurrent protection circuits
• Universal power supply (100-40 VAC) for global compatibility

Data Sheet

Manual