DII400.4 - Ultra Compact Full Range Class-D 4-channel Car Audio Amplifier, Max 800 Watts, 2-4 OHM Stable, Bridgeable

The DII400.4 packs four channels of Class-D amplification into a 5.5" x 5.4" footprint, making it a practical solution for space-constrained installs without sacrificing output. At 2 ohms, it delivers 100W per channel, with 200W x 2 in bridged mode at 4 ohms. Controls are top-mounted under a protective cover, keeping adjustments accessible without pulling the unit.

• Recoil proprietary Class-D technology for high efficiency in a compact chassis (141mm x 136.5mm x 53mm)
• Flexible power output: 100W x 4 @ 2Ω, 62W x 4 @ 4Ω, or 200W x 2 bridged @ 4Ω
• Multi-impedance constant power with 4/2 ohm stability and 4 ohm bridged capability
• Three turn-on modes — REM, VOX, and DC — for versatile installation options
• 2/4 channel input switch with RCA pass-through outputs for signal routing flexibility
• Clip detection LEDs for real-time monitoring, with clip indication triggering at 1.1% THD
• 4-way protection circuit covering thermal, voltage, and speaker DC faults