KICKER CXA3604-4x90W 4-Channel Full-Range Amplifier | 46CXA3604

The CX-Series amplifiers fuse big power with flexible control and proven reliability. The KICKER CXA3604 is a four-channel, full-range amplifier designed to drive multiple speakers with clarity and punch, all while offering install versatility that fits a wide range of vehicles and dashboards. Expect a responsive, dynamic sound stage without sacrificing reliability or build quality.

Powerful yet adjustable performance

Engineered for four independent channels, the CXA3604 gives you detailed highs, clean mids, and controlled bass across your front and rear speakers. You control the sound shaping with a variable 12dB crossover that defines how each channel blends with the rest of your system. A 6dB variable bass boost, powered by KickEQ, lets you tailor the low end to your listening space, while the included 24dB subsonic filter on mono amps helps keep woofers protected from unwanted signals that can muddy the bass.

• 4-channel design for separate front/rear speaker control
• Variable 12dB crossover to fine-tune frequency routing
• KickEQ 6dB bass boost for added punch where you want it
• 24dB subsonic filter on mono amps to reduce unwanted low-end energy
• Class A/B power for dynamic, responsive performance

Installability and real-world use

Flexibility is a key feature of CX-Series amps. The CXA3604 ships with vertical and horizontal mounting hardware so you can install it in a dash, under a seat, or in a trunk space with confidence. The design supports operation with as little as nine volts of battery power and up to a 40-volt input signal, enabling flexible sourcing from a broad range of head units and integration scenarios.

• Vertical and horizontal mounting options for adaptable installs
• Low-voltage compatibility (as low as 9V) to suit different vehicle electrical systems
• High input tolerance up to 40V for strong, clean signal handling

In short, the CXA3604 offers a robust platform to power a four-speaker setup while providing tweaks that let you shape the listening experience to your space and preferences. Consider how these features match your vehicle and music taste, and choose an installation approach that aligns with your style and space constraints.