KICKER 46CXA4001 CXA4001 Mono Class D Subwoofer Amplifier – 400W, 1Ω Stable

Unleash powerful, clean bass with the KICKER CXA4001 Mono Class D Subwoofer Amplifier

The CXA4001 is part of KICKER’s CX-Series, delivering big power with reliability in a compact package. Designed for enthusiasts who want clear, punchy bass and dependable performance, this mono amplifier pairs with a single sub or a growing multi-sub setup.

Take control of your sound with precise tone shaping. The variable 12 dB crossover lets you dial in exact low-end emphasis and separation, while the 6 dB KickEQ bass boost adds depth without muddying the mids. A 24 dB subsonic filter keeps the signal clean by eliminating unwanted ultra-low content, helping your sub perform at its best even at high listening levels.

Power, efficiency, and headroom

At up to 400 watts of output in a mono Class D design, the CXA4001 combines power with efficiency. It remains stable down to one ohm, enabling you to expand your sub configuration. The amp is designed to work with as little as nine volts from the vehicle battery and as much as 40 volts of speaker-level input signal, offering flexibility across different wiring scenarios.

Flexible installation for real-world setups

Vertical and horizontal mounting hardware are included, making it easier to fit in tight spaces—behind a trunk panel, under a seat, or in a custom dash install. The compact footprint helps preserve cargo space while maintaining a clean, secure installation. A robust chassis and solid connections are built to handle dynamic car audio environments over time.

What this means for you

• You can tailor bass response to your music and room with adjustable crossover and bass boost.
• Expanded sub capabilities enable more configuration options as your system grows.
• Reliable operation and versatile mounting options simplify upgrading and customizing your ride’s audio.

• Monoblock amp for dedicated subwoofers
• One-ohm stability supports multi-sub expansions
• Adjustable crossover, bass boost, and subsonic filter
• Vehicle-ready for 9–40 V input signals
• Includes mounting hardware for flexible installs

Overall, the CXA4001 focuses on power, control, and install adaptability—offering a pathway to cleaner, more controlled bass without guarantees. It’s a solid option for upgrading an existing system or starting a new build with room to grow.