RECOIL DI800.4 4-Channel Class-D Car Amplifier

The RECOIL DI800.4 is a compact, full-range 4-channel Class-D car amplifier delivering up to 1500 watts peak power with bridgeable channels and stable performance at 2–4 ohms.

Designed for drivers who want louder, cleaner sound without sacrificing compactness, the DI800.4 uses a high-speed MOSFET power supply and premium internal parts to push music with low heat and high efficiency. It balances flexible tuning controls with robust protection circuitry so you can tailor the output to speakers, component sets, or a small sub setup while protecting your system from overloads.

What power levels and loads does this amplifier support?

The DI800.4 offers multiple practical power ratings to match different speaker configurations. It provides RMS outputs suitable for powering four speakers, plus bridged operation for higher power to two channels.

• RMS: 185W x 4 at 2Ω per channel
• RMS: 125W x 4 at 4Ω per channel
• Bridged: 360W x 2 at 4Ω (usable for subs or high-power components)
• Peak: 370W x 4 at 2Ω (short-term peaks, not continuous RMS)

How does the amplifier stay cool and reliable during long drives?

Thermal management and protection are built into the DI800.4 to support extended listening sessions without interruption. A highly efficient heatsink design and four-way protection circuitry monitor conditions and prevent damage under stress.

• Efficient Class-D topology reduces heat generation
• Precision heatsink channels dissipate heat effectively
• 4-way protection covers short, over-current, thermal, and DC faults
• MOSFET power supply ensures stable voltage delivery to stages

What tuning options are available for matching speakers and sound preference?

The DI800.4 includes a broad set of user controls so you can tailor crossover points and gain for cleaner integration with factory or aftermarket head units. Adjustments let you optimize output for component speakers, full-range drivers, or bridged sub channels.

• Adjustable gain controls for level matching
• Selectable high-pass and low-pass filters for channel separation
• Variable crossover and bass EQ for tonal shaping
• Flexible wiring options for 2- or 4-channel systems and bridging

How big is the amp and where can it be mounted in a car?

At a compact footprint, the DI800.4 fits behind seats, under consoles, or in smaller trunks where larger amps won’t. Its low profile simplifies installation while offering enough clearance for ventilation when mounted correctly.

• Dimensions: 8" x 6.1" x 1.8" (203 x 155 x 46 mm)
• Thin profile works for tight spaces and shallow mounting areas
• Mounting tabs and clearances accommodate common vehicle locations
• Keep ventilation around the heatsink to maintain thermal performance

Who is this for? The RECOIL DI800.4 is aimed at car audio enthusiasts and installers who need a small, efficient amplifier capable of driving a full set of speakers or a bridged sub pair. It fits owners upgrading factory audio who want more power and control without a large amplifier footprint, plus installers who need reliable protection features and flexible tuning to match a variety of speaker loads.