DI550.4 - Full-range Class-D 4-channel Car Audio Amplifier, 1,040 Watts, 2-4 OHM Stable, Mosfet Power Supply, Bridgeable

The DI550.4 is a full-range Class-D 4-channel car audio amplifier built to drive a complete aftermarket speaker system from a single unit. Rated at 1,040 watts total, it delivers clean, efficient power across all four channels without the thermal overhead typical of Class-AB designs. Stable from 2 to 4 ohms and fully bridgeable, it adapts to a wide range of speaker configurations and system builds.

• Total Power Output: 1,040 watts across four channels
• Class-D Topology: High-efficiency design runs cooler and draws less current than Class-AB
• MOSFET Power Supply: High-speed switching for stable, consistent output
• 2–4 Ohm Stable: Compatible with a broad range of speaker loads
• Bridgeable Channels: Configurable for 2-channel or mono operation to suit your system
• 4-Way Protection Circuitry: Guards against thermal, overload, short-circuit, and DC fault conditions