Kicker CXA400.1

400W RMS CX-Series Class-D Monoblock Amplifier

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Limited time!

• 150 watts x 1 channel @ 4 ohms
• 300 watts x 1 channel @ 2 ohms
• 400 watts x 1 channel @ 1 ohm
• Total RMS Power: 400 watts
• CEA-2006 Compliant
• Class D 4 ohms Stable Monoblock Amplifier

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Kicker 46CXA4001 with Amplifier Wiring Kit

400W RMS CX-Series Class-D Monoblock Amplifier



Kicker 46CXA400.1 with Amp Kit and 3 Year Warranty

400W RMS CX-Series Class-D Monoblock Amplifier with 8 Gauge Amp Kit



Current Promotions (2 offers)

Complete level or volume control that can be remotely mounted nearly anywhere. This offer cannot be combined with any other coupons or offers.

Kicker CXA400.1

50% off

Priced separately $209 95

Promo Savings of $20 00

Total price:

$189 95

Save 25% off the NVX XCAP1F 1.0 Farad Capacitor with the purchase of a select amplifier. Simply click the "Add Both to Cart" button to the right. This offer cannot be combined with any other coupons or offers.

Kicker CXA400.1

25% off

Priced separately $259 95

Promo Savings of $22 50

Total price:

$237 45



Authorized dealer

The Kicker CX-Series

CX-Series amps reach massive power levels thanks to an optimized circuit layout and the highest-grade internal components. Highly efficient heat sinks keep the amp cool with a sophisticated look.

Kicker CXA400.1

CX-Series Mono Amps are now one-ohm stable, giving you even more power and wiring options for your system! Using efficient Class-D power, the CXA400.1 features a variable bass boost with KickEQ™, giving you as much as a 6dB of extra bump with a simple turn of the optional CXARC Remote Bass Controller. A powerful 12dB crossover and 24dB subsonic filter is included, letting you quickly tune your system to perfection. Use the full-range outputs to expand your system with other bass amps, or a full-range amp to complete your system.

Product Details:

  • CX Series Class D 4 ohms Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohms: 150 watts x 1 channel
    • 2 ohms: 300 watts x 1 channel
    • 1 ohm: 400 watts x 1 channel
  • Total RMS power output: 400 watts
  • CEA-2006 Compliant Amplifier
  • Wired remote bass level control not included (sold separately)
  • Automatic Turn-On Selection
  • Speaker-level (high-level) inputs
  • Kicker's Fail-Safe Integration Technology (FIT™)
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 250mV - 10 volts
    • High level: 1 - 40 volts
  • Frequency Response: 25 - 200 Hz
  • Total Harmonic Distortion (THD): <1%
  • Signal to Noise Ratio: >95 dB
  • Variable low-pass filter: 80 - 200 Hz
  • Subsonic filter: 0 - 25 Hz
  • Variable Bass Boost: 0 - 6 dB
  • Fuse Rating: 40A
  • 8 AWG gauge power and ground wiring is recommended for installation.
  • Dimensions: 6-3/4" W x 8-1/8" L x 2-3/8" H
  • Includes hardware for vertical mounting
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty
Kicker CXA400.1 owner’s manual

Product history:

Kicker CXA400.1 thumbnail
(newest, current model)
Kicker 43CXA300.1 thumbnail
(previous model, replaced by Kicker CXA400.1)
Kicker CX300.1 thumbnail
(previous model, replaced by Kicker CXA300.1 Amplifier (43CXA300.1))

Specifications & Details

Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
150 watts x 1 channel
RMS Power @ 2 ohms
300 watts x 1 channel
RMS Power @ 1 ohm
400 watts x 1 channel
Amplifier Specifications
CX Series
Marine Certified
Amplifier Class
Number of Channels
1 - Mono
Total RMS Power Output
400 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
4 ohms
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
25 - 200 Hz
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
80 - 200 Hz
Subsonic Filter
0 - 25 Hz
Signal-to-Noise Ratio
>95 dB
Bass Boost
0 - 6 dB
Remote bass/level controller
Optional (Accessory required and sold separately)
Fan Cooled
Fuse Rating
1A x 40 
Total Fuse Rating
CEA-2031 Compliant
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
Hi-Res Certified
Low-Level Input Sensitivity
250mV - 10 volts
High-Level Input Sensitivity
1 - 40 volts
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Item Details


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Customer Ratings & Reviews

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Pretty Good for the Price

Overall, the amp is super solid and seems to be built rather well. Having a rated power certificate in the box was also helpful to see that it actually is putting out the claimed RMS power or above. Currently using it to power a single CompR 12" and it hits hard with the gain barely over 1/3 and no bass boost. Only complaint is that the power and ground inputs are not designed for bare wire, you'll need to buy a U or spade connector to reliably attach your power and ground.

By Anonymous on December 7, 2019 checkmarkIcon Verified purchase


found this helpful.

Kicker amp

This is my first kicker amp and love this product and was easy to hook up. I have had other amps and wasn't satisfied on how you had to hook the amp up because the controls you had to use an Allen wrench to loosen or tighten the controls. Kickers product a flat head or a Phillips screwdriver will work on their amps to hook it up and made it easy and fast to hook up! I would recommend this product to anyone else for a small amp that just brings the power to your subwoofer!

By Gary on March 12, 2020 checkmarkIcon Verified purchase


found this helpful.

Under rated quality amp for the price

This cx 400 is amazing! On the higher end of resistance its minimal, push a c10 or c12 but bump it down and let it go to work. 2 c10's at 300 at 2 ohm, you'll feel it knock, drop it to 1 ohm, good god, I set the sensitivity to run 500 rms, per the rated rms of 533w on kickers birth certificate, this little guy moves single p3d2-12, pounding so hard my rear view mirror shakes to the point you can it rattling the windshield. I recommend this to anyone who wants a lower total rms output or a bi-amp system (given youb match up your impedance and wattage (rms) of chosen sub. I messed up my original purchase, got a JL 12W0 crank it up and live loud

By Joseph on May 19, 2020 checkmarkIcon Verified purchase


found this helpful.

Great transaction

Fast transaction fast shipping love doing business with Sonic Electronix

By Anonymous on November 28, 2019


found this helpful.

Small and powerful

This amp is great. I have it mounted behind the backseat and it takes no room at all. It's got pre-amp and output RCA connections so I have my stereo amp getting signal. You can only use fork terminals with the connections but the connections are solid. Unlike some amps. Two speaker outputs for easier wiring if you are using 1ohm which I have two 10" Kicker DVC 4 ohm subs running at. Overall 5 out of 5 would buy again.

By Clay on March 7, 2020 checkmarkIcon Verified purchase


found this helpful.

Great transaction

Shipped from the manufacturer in a timely manner, took 3 days instead of the proposed 2 day guarantee, but overall still a great transaction.

By Anonymous on November 10, 2019


found this helpful.


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