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Kicker 43CXA1800.1

CX Series mono subwoofer amplifier — 1800 watts RMS x 1 at 2 ohms

Item # 206CXA1800

Looking for massive bass? Kicker's CXA1800.1 mono amp can send up to 1,800 watts RMS to your subwoofer.

Looking for massive bass? Kicker's CXA1800.1 mono amp can send up to 1,800 watts RMS to your subwoofer.

Item # 206CXA1800

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C$869.99
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About the Kicker 43CXA1800.1

Mega-power for your bass

Looking for massive bass? Kicker's CXA1800.1 mono amp can send up to 1,800 watts RMS to your subwoofer. But brute force isn't everything with this CX Series amp — you can use the variable low-pass filter to get maximum performance from your sub/enclosure combo, while the fixed subsonic filter removes the extreme low resonances that cause distortion. The variable bass boost allows you to add some low-end punch if you need it (but you probably won't). An optional wired remote lets you conveniently adjust the bass level from your front seat.

Mega-power for your bass

Looking for massive bass? Kicker's CXA1800.1 mono amp can send up to 1,800 watts RMS to your subwoofer. But brute force isn't everything with this CX Series amp — you can use the variable low-pass filter to get maximum performance from your sub/enclosure combo, while the fixed subsonic filter removes the extreme low resonances that cause distortion. The variable bass boost allows you to add some low-end punch if you need it (but you probably won't). An optional wired remote lets you conveniently adjust the bass level from your front seat.

Hooks in almost anywhere in almost any position

Kicker's Fail-Safe Integration Technology (FIT™) keeps this amp's inputs free from noise or interference, so you can tap into your speaker wires for a signal without a worry. The CXA1800.1 comes with hardware that lets you mount it vertically, so you can put it in a location that takes up very little floor space and looks cool too.

Note: This amplifier can draw some serious amounts of current (up to 163 amps), so you may have to upgrade the electrical system in some vehicles to power it effectively.

Kicker 43CXA1800.1

Kicker 43CXA1800.1 signal connections and controls

Confused about impedance? Check out our article on matching subs and amps.

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Product highlights:

  • mono subwoofer amplifier
  • 900 watts RMS x 1 at 4 ohms (1800 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • Class D amp technology
  • variable low-pass filter (50-200 Hz, 12 dB/octave)
  • fixed subsonic filter (25 Hz, 24 dB/octave)
  • variable bass boost (0-12 dB at 40 Hz)
  • frequency response: 20-200 Hz
Other Features:
  • preamp inputs and outputs
  • speaker-level inputs (speaker wire to RCA adapters required)
  • balanced differential inputs reduce noise and interference
  • optional remote bass level controller available
  • 1/0-gauge power and ground leads and a 150-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 150-amp in-line fuse between the distribution block and this amplifier is recommended
  • includes hardware for vertical mounting
  • dimensions: 14-5/16"W x 2-3/8"H x 7-3/4"D
  • warranty: 2 years (extends to 3 years when purchased with a Kicker PKD1 multi-amp wiring kit)
  • Our 60-day money-back guarantee
  • MFR # 43CXA18001
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What's in the box:

  • Mono amplifier
  • 2 Vertical mounting brackets
  • 3mm Allen wrench
  • 4 Self-tapping screws (3/4" length)
  • Owner's Manual
  • Certified Power certificate

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Kicker 43CXA1800.1 reviews

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Kicker 43CXA1800.1

Crutchfield customer from San Antonio, TX on 1/22/2019

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Perfect power for thunderous bass. Great addition

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Cons:

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0 of 0 found this helpful

Small size, big power.

Paul from Chicago, IL on 12/15/2018

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I am running 2 NVX VCW122 subs with this amp and it is epic. I own many amps but have never owned a Kicker mono amp before. I got a great deal on the 1800.1 open box for $200 that had one broken mounting piece. So since it does most power at 2ohms I decided to get it. It's the absolute perfect size for my Tacoma and puts out loads of power. It does drag your electrical system though but I have a stock alternator, yellow top battery, and fosgate 10 farad cap. My lights still dim quite a bit when the bass hits with this amp but that is to be expected when your getting 1,800 watts RMS. I've never had a single issue with this amp , it doesn't run hot at all and I love the simplicity of it. I recently got a remote bass knob for it which I love now. The CXA1800.1 is easy to hook up (I like the connections on it overall) and its the perfect small size. It also has power for days. Before running this amp I was running a rockford fosgate P1000x1bd amp at 1 ohm pushing around 1300 watts RMS and I can tell that this amp has quite a bit more power than the P1000. I have always purchased either Rockford Fosgate or JL amps usually but now Kicker is on my list. I just bought a cxa1200.1 for another setup of mine instead of a P1000x1bd which says a lot. IIf you are on the fence about getting this amp for one reason or another don't be. There is no way you will be disappointed. Only gripe I have is the lack of a variable subsonic filter..this amp has a fixed subsonic.filter.

Pros: Loads of power, small footprint, well made and simple. 900 watts RMS at 4 ohms is impressive but 1800 watts RMS at 2 ohms is wow especially for the size this amp is. Kicker did a fantastic job creating and designing this amp. It's my daily driver amp now. in creating this amp.

Cons: lack of a variable subsonic filter, this amp has a 24db fixed at 25hz subsonic filter.

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1 of 1 found this helpful

Sleek and Powerful

Brandon from Humble, TX on 11/15/2018

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Nice sleek design that puts out tons of power. Pushing two 15" Kicker L7 with ease!

Pros: Sleek Compact Powerful

Cons: None at the moment

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0 of 0 found this helpful

Holy power

Robert from Philadelphia , PA on 9/2/2018

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Great amp, this thing is a beat when paired with a capacitor. This pumps so much power to my 2 subs and looks good too.

Pros: Everything from power to durability. I love this thing

Cons: Does run a little warm sometimes with the volume turned all the way up.

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0 of 0 found this helpful

Kicker cvx 15

Oliver from Winston Salem, NC on 2/3/2017

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This amp hits my kicker Cvx 15 ported box its real loud it almost have my windows broke

Pros: Real Power

Cons: You won't be disappointed

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4 of 6 found this helpful

Nice Amp

Travis from Corpus Christi, TX on 8/28/2016

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Love the amp and the power it puts out. smaller then I thought which was cool. Plus Daisy is an awsome person she help to out a lot choosing the right amp to the right subs and box.

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1 of 1 found this helpful

Got to have this

David from York s.c on 7/23/2016

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This amp is for real it beats my 12 inch kicker comp r s down ,it rattles my house when I leave it on outside

Pros: Clean power

Cons: Should come with the bass knob

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3 of 3 found this helpful

perfect match

Michael from So Carolina on 4/21/2016

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Great amp pushes my 2 alpine type Rs flawlessly. Very happy with my purchase.

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10 of 12 found this helpful

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Product Research

Features

Overview: Kicker CX Series amplifiers can deliver plenty of power when you need it, utilizing high-grade internal components and an optimized circuit layout. This Class D amp has highly efficient heat sinks to keep the amp running cool. You can mount the amplifier vertically, if desired, with the supplied mounting brackets.

Power Output: The CXA1800.1 is a mono amplifier designed to output 900 watts RMS at 4Ω (<1% THD+N @ 14.4V) and 1800 watts RMS at 2Ω.

Controls: The controls for the amplifier are located on the side of the amplifier:

  • Input Gain Control: The rotary input Gain control lets you match the output of the source unit to the amplifier. When setting the Gain, you should turn the source unit up to about 3/4 of the maximum volume, adjust the gain until audible distortion can be heard, then back the gain down slightly. The Gain control goes from 0 to 11.
  • Low Pass Filter: You can select a crossover frequency between 50Hz and 200Hz. This adjusts the upper frequency limit of the amplifier's output. The rotary control can be adjusted with a small slotted screwdriver (not included).
  • Input Level: The RCA inputs on the amplifier will accept a high-level or low-level input. Using the Input Level switch, you can select high level (button in) or low level (button out) input.
  • KickEQ Bass Boost: The bass level can be increased between 0dB and +12dB via the rotary KickEQ Bass Boost control. The bass boost circuit is centered at 40Hz.

Subsonic Filter: The amplifier features a non-defeatable 25Hz Subsonic Filter with a 24dB per octave slope. The Subsonic Filter rolls off extremely low frequencies that can't be cleanly reproduced by the amplifier and subwoofers. This reduces distortion and helps the amp run more efficiently.

Auto Turn-on: The amplifier has two Auto Turn-on modes: +12V and DC Offset. The preferred auto turn-on method is to run an 18-gauge wire from the remote turn-on lead of the source unit to the Remote (REM) terminal on the amp. When a +12V signal is detected on the wire, the amplifier will turn on. If your source unit lacks a remote turn-on lead (a factory head unit, for example), you can choose to turn on the amplifier via the DC Offset method. When a 6V DC offset is detected on the source unit's speaker outputs, the amplifier automatically turns on.

Connections: The CXA1800.1 has set screw terminals for power, ground, and turn-on lead (REM). The power and ground terminals will accept up to 1/0 gauge wire (recommended), and the turn-on lead will accept up to 10 gauge (18-gauge recommended). The set screws can be loosened/tightened with the supplied 3mm Allen wrench. The speaker outputs are slotted, screw-down terminals, which will accommodate bare wire or spade connectors. The speaker slots are 5/16" in width, and will accommodate up to 10 gauge wire.

External Fuse: The amplifier does not include a built-in fuse, therefore an external fuse should be placed on the power wire, within 18" of the battery. It is recommended that a 1/0-gauge amplifier wiring kit and a 150A external fuse be used when installing the amplifier.

Input Signal: The CXA1800.1 is capable of receiving either high- or low-level input signals, and you can select the input type on the end of the amp. A pair of female RCA jacks is provided on the end of the amp. If you are using a speaker-level source, you can use the optional Kicker KiSL speaker level to RCA adapter. The Input Sensitivity is 250mV-10.0V (High Level), while the Low Level Input Sensitivity is 125mV-5.0V.

Preamp Output: The CXA1800.1 has a stereo RCA output which passes the audio signal to another amplifier or component. This allows you to daisy-chain another amplifier without having to run RCA cables from the head unit to the second amp. Either input method, high- or low-level, will provide a low-level output signal at the RCA output.

Certified Power: Each amplifier is tested when it comes off of the assembly line. Tests are run for Total Harmonic Distortion, Signal-to-Noise Ratio, Protection Circuit, and Total Power Output. A Certified Power certificate with model and serial number is included with each amp with the measured power output figure, and a pass/fail grade for the other tests.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
To power my subs. I had an expert help me pair a amp to my subs rated power. [ Robert Thomas  Aug 18, 2018 ]
A
Math + RMS + Needs = 1800w Kicker 43CXa [ Jazz  May 14, 2018 ]
A
One of the best products around [ Willie  Apr 19, 2018 ]
A
Good value always had good luck with Kicker [ Joseph  Mar 03, 2017 ]
A
Seems like a lot of bang for the buck, kicker is a well known brand also. I wanted to make my Alpine 12" Type R subs get the power they deserve. My current amp is only giving 450 to each speaker and they can handle 1000 each. [ Benjamin  Sep 22, 2016 ]
A
old amp was over heating [ Michael  Aug 22, 2016 ]
A
For a Orion HCCA104 subwoofer. [ Syprus  Mar 26, 2016 ]
SHOW MORESHOW LESS

3 questions already asked

Q
Would this amp push four kicker cvr 12s the dual 4 ohm going to have them wired 2 ohm at the amp subs are 400 watt rms and 800 watt peak ?
[ Shane  Feb 10, 2019 ]
2 answers
A
You shouldn't have a problem.. I have it pushing 2 L7 and it absolutely knocks in my Yukon xl.
[ Brandon  Feb 11, 2019 ]
A
I believe so
[ carrigan  Feb 11, 2019 ]
Q
Will this amp be stable when connected to my hifonics Olympus 1600 Watts rms 3200 Watts max or will it blow the sub? If I connect the adjustable knob will this keep from blowing the sub?
[ M.  Nov 07, 2018 ]
2 answers
A
It depends on how you hook it up keep in mind this amp is a 2ohm amp will not run at 1 ohm tried and it kicked it off
[ Jonathan  Nov 10, 2018 ]
A
It blew both alpine type r's halfway turned up Not happy at all
[ Daryrell  Nov 09, 2018 ]
Q
Is this amp 1 ohm stable?
[ Oldschoolampz  Oct 10, 2016 ]
2 answers
A
I Have The CXA 1800.1 on 2 18" SA Sundown D4 subwoofers wired at 1ohm in my Semi....I play it hard all day for hours great amp does not cutoff.....But definitely uses alot of current...
[ Jmkcolon2  Dec 11, 2016 ]
A
The Kicker 43CXA1800.1 amplifier is only stable down to 2-ohm and wouldn't be able to handle a 1-ohm load. I hope that helps! My bio: http://www.crutchfield.com/Support/Bio.aspx?bio=159
[ Larry  Oct 12, 2016 ]  Staff

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