KICKER CXA400.1 Monoblock Subwoofer Amplifier | 400W RMS Class D

Take control of your bass with the KICKER CXA400.1 Monoblock Amplifier. Designed to deliver clean, efficient power for a wide range of subwoofer systems, this compact Class D amplifier is the perfect solution for anyone looking to add impactful low-frequency performance without sacrificing valuable installation space.

Producing up to 400 Watts RMS, the CXA400.1 is ideal for powering a single subwoofer or compact bass system while maintaining the efficiency and reliability KICKER amplifiers are known for. Its 1 Ohm stable design provides flexible wiring options, making it suitable for both factory upgrade systems and custom installations.

KICKER's advanced FIT+™ (Fail-safe Integration Technology Plus) allows seamless integration with modern factory audio systems by accepting up to 40 volts of speaker-level input, eliminating the need for a line output converter in many vehicles while preserving excellent sound quality.

Built-in tuning controls make it easy to achieve tight, controlled bass. A variable low-pass crossover, 24dB/octave subsonic filter and KickEQ™ variable bass boost allow you to optimise your system for your vehicle and music preferences. Add the optional CXARC Remote Bass Controller to conveniently adjust bass output from the driver's seat.

With its compact footprint, high-efficiency cooling and flexible mounting options, the CXA400.1 is equally at home in daily drivers, 4WDs, utes and custom audio builds.

Features

• 400W RMS Class D monoblock amplifier

• Stable down to 1 Ohm

• Compact high-efficiency design

• FIT+™ factory integration technology

• Accepts up to 40V speaker-level input

• Variable low-pass crossover

• 24dB/octave subsonic filter

• KickEQ™ variable bass boost

• Compatible with optional CXARC Remote Bass Controller

• RCA pass-through outputs for system expansion

• Standard or vertical mounting options

• Compact chassis for easy installation

Specifications

• Model: CXA400.1

• Part Number: 46CXA400.1

• Amplifier Class: Class D

• RMS Power @ 4 Ohms: 150W x 1

• RMS Power @ 2 Ohms: 300W x 1

• RMS Power @ 1 Ohm: 400W x 1

• Frequency Response: 25Hz – 200Hz

• Signal-to-Noise Ratio: >95dB

• Low-Level Input Sensitivity: 250mV – 10V

• High-Level Input Sensitivity: 1V – 40V

• Low-Pass Crossover: Variable 50Hz – 200Hz (12dB/Octave)

• Subsonic Filter: 25Hz @ 24dB/Octave

• KickEQ™ Bass Boost: Variable 0–6dB @ 40Hz

• Remote Bass Controller Compatible: Yes (CXARC Sold Separately)

• Amplifier Length: 206mm

Perfect For

• Single 10" or 12" subwoofer systems

• Compact bass upgrades

• Factory head unit integrations

• Daily driver audio systems

• 4WDs, utes and passenger vehicles

• Custom car audio installations

• First-time subwoofer upgrades

What's Included

• KICKER CXA400.1 Monoblock Amplifier

• Vertical Mounting Hardware

• Installation Guide

Why Choose the KICKER CXA400.1?

The CXA400.1 is an excellent choice for drivers wanting strong, controlled bass in a compact and affordable package. With its efficient Class D design, flexible 1 Ohm operation and advanced FIT+™ integration technology, it delivers impressive performance while remaining easy to install in almost any vehicle. Whether you're upgrading a factory system or adding a dedicated subwoofer amplifier to a larger build, the CXA400.1 offers the performance, reliability and value that has made KICKER one of the world's most trusted names in car audio.

Professional Installation Available

At Garage Audio, we professionally install and tune KICKER amplifiers in our Morayfield workshop. We can integrate the CXA400.1 with factory or aftermarket head units, recommend the ideal subwoofer and enclosure combination, and ensure your system is tuned for powerful, reliable bass. Every installation is backed by our Lifetime Workmanship Guarantee.