【KICKER CXA1800.1｜Monoblock Power Amplifier for Powerful Bass】

You’ve added a subwoofer, but you want a bit more headroom in terms of bass quantity and punch. That’s exactly what the KICKER CXA1800.1 is for.

This Class D, 1-channel power amplifier is designed for subwoofers. It supports a maximum output of 1800W and includes a power supply circuit and adjustment functions to drive your subwoofer firmly.

It’s not just about making the bass louder—it's important to tune the integration with the front speakers and how the sound comes across inside the vehicle. By using the CXA1800.1’s low-pass filter, subsonic filter, and bass boost function, you can adjust the low-frequency output to suit your vehicle and subwoofer.

It’s a great choice not only for those who want to enjoy bass with real impact, but also for people who feel the subwoofer sounds strained when they turn up the volume, or anyone who wants to add more thickness and headroom to the bass. If you want to adjust the bass level from the driver’s seat, it also supports an optional remote controller.

To Make the Most of Your Subwoofer’s Performance

Even with the same amplifier, the final sound can change depending on how you take power, how you handle wiring, and how you set the gain and filters. If only the bass pushes forward too much, the balance with vocals and instruments can be thrown off.

If it were me, I wouldn’t decide based only on the amplifier’s output by itself. I would plan the setup by considering how it works with your current subwoofer, front speakers, and head unit. Whether a CXA1800.1 is a meaningful match, or whether an amplifier with a more manageable output would fit better, will vary depending on the vehicle and how you use it.

At LOGON, after confirming your vehicle model and existing system, we guide you with details including installation method, power wiring, compatibility with your subwoofer, and post-install tuning. If you’re going to add an amplifier, you want to make the bass so that the music you normally listen to becomes enjoyable and satisfying—not just louder.

If you want to bring out strong bass impact or want to get more out of your subwoofer than you do now, let’s decide the direction together while looking at your current setup.

Main Specifications / Specs

【Basic Information】

• Product name: KICKER CXA1800.1
• Type: Monoblock power amplifier for subwoofers
• Channels: 1ch
• Amplification method: Class D

【Output (RMS)】

• 4Ω: 900W × 1
• 2Ω: 1800W × 1
• 1Ω: 1800W × 1

【Input / Filters】

• Input sensitivity (Low Level): approx. 125mV to 5V
• Input sensitivity (High Level): approx. 1V to 40V
• Speaker-level input: Supported
• Variable low-pass filter: 50Hz to 200Hz
• Subsonic filter: 25Hz
• KickEQ bass boost: 0 to approx. +6dB
• Remote controller: Optional support

【Acoustic Characteristics】

• Frequency response: approx. 25Hz to 200Hz
• Signal-to-noise ratio (S/N): approx. 95dB or higher

【Others】

• Soft-start function: Included
• Soft-off function: Included
• Dimensions: approx. 364mm (W) × 170mm (D) × 59mm (H)
• Recommended fuse: around 150A
• Recommended power wiring: 1/0AWG

• Output values and specifications may vary depending on the impedance used, the power supply environment, and the devices you combine. Installation details will be provided after checking your actual vehicle and your current system.