Name: Kicker 46CXA1800.1T
Brand: Kicker
SKU: 20646CX18T
Price: 499.99 USD
Availability: InStock
Rating: 4.5 (34 reviews)

Overview

by Crutchfield's Buck Pomerantz

High-level bass power

Do you like loud bass? Kicker's CXA1800.1T mono subwoofer amplifier can put out up to 1,800 watts RMS, so your bass will shake the planet. The quality of the bass tone matters as much as the volume, so a variable low-pass filter helps get maximum performance from your sub/enclosure combination, while a fixed subsonic filter removes the extreme low resonances that cause distortion. A variable bass boost allows you to add some extra low-end punch if you want. An optional wired remote lets you conveniently adjust the bass level from your front seat.

KEEP READING

High-level bass power

Hooks in almost anywhere in almost any position

This amplifier works with one-ohm loads, so you won't have to worry too much about matching impedances when you add a second or third sub to your system. Kicker's Fail-Safe Integration Technology (FIT™) keeps this amp's input free from noise or interference, so you can tap into your vehicle's speaker wiring for an input signal without a worry. A 3-second turn-on/turn-off delay eliminates system pops and other noises. The CXA1800.1T 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.

Installation Note: This amplifier's power consumption is beyond the capacity of most automotive electrical systems. To power this amp, your vehicle may require an electrical upgrade that could include a high-output alternator, a Big 3 wiring upgrade, and a second battery.

CXA1800.1T input and control panel

Subwoofer Wiring Diagrams

To see sample wiring diagrams for all common subwoofer/amplifier combinations, check out this informative article.

READ LESS

Product highlights:

mono subwoofer amplifier
- 900 watts RMS x 1 at 4 ohms (1800 watts RMS x 1 at 2 ohms)
- 1800 watts RMS +/-10% x 1 at 1 ohm
CTA-2006 compliant
Class D amp technology
frequency response: 25-200 Hz
variable low-pass filter (50-200 Hz, 12 dB/octave)
fixed subsonic filter (25 Hz, 24 dB/octave)
variable bass boost (0-6 dB at 40 Hz)

Other Features:

preamp inputs and outputs
speaker-level inputs (speaker wire to RCA adapters required)
optional remote bass level controller available
3-second delay for turn-on and turn-off
includes hardware for vertical mounting
wiring, fuse, and hardware not included with amplifier
- 1/0-gauge power and ground leads and a 150-amp fuse recommended
dimensions: 15-1/4"W x 2-3/8"H x 6-3/4"D
warranty: 2 years (extends to 3 years when purchased with a Kicker 1/0-gauge wiring kit)
MFR # 46CXA18001T

What's in the box:

Kicker 46CXA1800.1T owner's manual

Mono amplifier
2 Vertical mounting brackets
3mm Allen wrench
Four 3/4" Screws
Owner's manual
Power chart
Certified Power certificate

Featured video:

Featured review

I bought a kicker 46cxa1800.1t driving 2 Sola baric 15 inches, the amp is hitting so hard I have to keep the volume on the radio at 25 while I'm in the vehicle ,I will recommend this amp to anyone who needs real POWER!

Renwick from Provincetown, MA

See all 34 reviews

Customer Q&A

Would this amp be sufficient for 2 mini mojo 8s wired at 1ohm?

Yep! The Mojo 8" have a 900-watt RMS power handling. Two of them could handle the 1800 watts this amp puts out at 1-ohms!

Reviews (34)

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34 reviews

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Details

Researched by Crutchfield's Mark G.

Features & specs

Performance
RMS Power Output (Watts x Channels)	900 x 1
Peak Power Output (Watts x Channels)	3600 x 1
Power at 2 Ohms (Watts x Channels)	1800 x 1
Bridged Power (Watts x Channels)	N/A
Minimum Impedance Bridged	N/A
Minimum Impedance Unbridged	1
Minimum Impedance	1
Best Frequency Response	25-200 Hz
THD at Rated RMS Power	1%
Signal to Noise Ratio	70 dB
Input Voltage	14.4v
Features
Amplifier Class	D
Low-Pass Crossover Frequency	50-200 Hz
Low-Pass Slope (dB/octave)	12 dB/octave
High-Pass Crossover Frequency	N/A
High-Pass Slope (dB/octave)	N/A
Bass Boost	0-6 dB
Bass Boost Frequency	40 Hz
Fan Cooled	No
Fuse Rating	150
Speaker Level Inputs	Yes
Preamp Outputs	2
Width (inches)	15-1/4
Height (inches)	2-3/8
Depth (inches)	6-3/4
Parts Warranty	2 Years
Labor Warranty	2 Years

The Kicker 46CXA1800.1T replaces these items:

Kicker 46CXA1800.1

Product Research

Features

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output. The criteria for measuring amplifier power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples).

CEA-2006 Specifications:

Power Output: 900 watts RMS x 1 into 4Ω
Signal to Noise Ratio: 70 dBA (measured at 1 watt into 4Ω)

Other Specifications:

Power Output:
- 2Ω: 1800 watts RMS x 1 (14.4 volts, ≤1.0% THD+N)
- 1Ω: 1800 watts RMS x 1 (14.4 volts, ≤1.0% THD+N)
Signal to Noise Ratio: 95 dB (at rated power output)

Controls:

Input Level: 2-position switch; select high (speaker-level) or low (line-level)
Input Gain Control: rotary input Gain control; continuously variable from 125mV to 5V with the input level switch set to low; 1V to 40V with the input level switch set to high
Crossover Frequency: continuously variable rotary dial; set the low pass crossover point between 50Hz and 200Hz; the crossover slope is 12 dB/octave
KickEQ Bass Boost: increase the bass level between 0dB and +6dB via the rotary control; centered at 40Hz

Subsonic Filter: The amplifier features a non-defeatable 25Hz Subsonic Filter with a 24dB/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.

Mounting: The efficient Class-D Kicker CX Series amplifiers can be mounted vertically, if desired, with the included mounting brackets.

Auto Turn-on: The amplifier has two methods of turning on: +12V and DC Offset. The preferred 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 DC offset is detected (>2.5 volts) on the speaker-level inputs, the amplifier automatically turns on.

Wire Connections: The CXA1800.1 has set screw terminals for power, ground, and turn-on (REM). The power and ground terminals will accept up to 4-gauge wire (recommended), and the turn-on lead will accept up to 8-gauge (18-gauge recommended). The set screws are 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 0.335" wide.

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 150-amp external fuse be used when installing the amplifier.

Input Signal: The CXA1800.1 accepts either high (speaker-level) or low (line-level) input signals on the RCA inputs, selectable using the input level switch on the end of the amp. When using a speaker-level input signal, add the optional Kicker KiSL speaker-level to RCA adapter. The input sensitivity is 125mV-5V (low) or 1V-40V (high).

Preamp Output: Using either a speaker-level or line-level input feeds the 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.

Optional Wired Remote: The optional CXARC remote bass level control can be added to remotely control the output level of the amplifier. The CXARC's control knob can be mounted near the driver's seat, and the control's cable extended to the amplifier location.

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.

The Kicker 46CXA1800.1T replaces these items

Kicker 46CXA1800.1

CX Series mono subwoofer amplifier — 1,800 watts RMS x 1 at 2 ohms

1 review

900 watts RMS x 1 at 4 ohms
1800 watts RMS +/-10% x 1 at 1 ohm
preamp and speaker-level inputs

Accessories

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Q&A

21 questions already asked

Changed my setup recently as I was not happy with 2 x 10TW3's in a sealed box. Looking for something to push 2 x 12" Kicker Comp Q Class (1,700 RMS Total) but worried about all the additional electrical components to add on. Is an alternator mandatory for this Amp or can I get away with a stock alternator + battery? I have a 2019 Tundra running a stock alternator 150A.

ge Mar 27, 2023

1 answer

Thanks for your question, Ge Yang! I recommend contacting one of our amazing Advisors either by phone at 1.800.324.9695 or by chat to discuss an amp that will match up with your Kicker Comp Q subs. Here's a link to a great article we have on "How to give your car's electrical system a power-up" https://www.crutchfield.com/learn/big-3-alternator.html

andrea Mar 27, 2023 (Staff)

Will this run 3 kicker comp R dvc and how would i wire to the amp?

anthony Mar 21, 2023

1 answer

Greetings Anthony, and thank you for your question. For this amp you will need Comp R DVC4 ohm subwoofers. They would be wired to 2.7 ohm in that case, and this amp will do just short of 1800 watts then. When you are ready to wire up your subwoofers, you can call our tech support team for wiring information. You will have a direct tech support number to call on your shipping confirmation email from us.

thomas Mar 22, 2023 (Staff)

Will this push 3 kicker comp R with dvc?

anthony Mar 20, 2023

1 answer

Greetings Anthony, and thank you for your question. What an amplifier will put out depends on what the impedance load is. 3 subwoofers would have an odd load. The amp puts out 900 watts at 4 ohms, and 1800 at 1 or 2 ohms. Three ohms would be split down the middle 1350 watts. Comp R subs are either DVC4 ohms, or DVC2 ohms How they are wired will change the load, and what the amp puts out.

thomas Mar 21, 2023 (Staff)

Thinking about buying this amp for future system expansion. I will initially run a single sub with a 1,000 watt rating (DVC 4 ohm). Once I upgrade my cars electrical I plan on adding a second 1,000 watt sub. Are there any potential issues with running the amp with the gain turned down? Once upgrades are complete I purchase the second sub and reset the gain to utilize the full power of the amp. Sound feasible?

rob Mar 08, 2023

1 answer

This amplifier would do nicely with two 1000 watt RMS 4-ohm DVC subs. We would be presenting the sub with a total 1-ohm impedance, at which point the subs would receive the 1800 watt RMS we see listed. However, this amplifier will also provide 1800 watts RMS at a 2-ohm impedance, which we would be presenting to the amplifier with only one of the aforementioned subs connected. This would be 800 watts RMS more than the sub is rated to handle. This would be risky. Keep in mind that gain adjustment is not a volume/wattage limiter. It would still be possible to blow the single sub from overpowering in this instance.

zachary Mar 09, 2023 (Staff)

im preparing to run three l7 shallows (2 ohm) in my single cab would you run this amp or the 1200 without doing too much of an electrical upgrade?

louis Feb 23, 2023

1 answer

Please reach out to our advisors via online chat or phone at 1-800-324-9695 for help with selecting the correct amplifier and accessories for your project. They will be able to review additional details and provide the correct products for the job.

zachary Feb 23, 2023 (Staff)

Will this amp power my 15" L7 solo Baric Q class subwoofer?

chris Jan 27, 2023

1 answer

Yes. This will work to power a 15" Q-class L7.

zachary Jan 28, 2023 (Staff)

Will this run my L7 15 Q Class solo Baric and would I need a capacitor?

chris Jan 27, 2023

1 answer

Greetings Chris, and thank you for your question. The Q Class L7 is rated for 1200 watts. This Kicker 46CXA1800.1 ran at 4 ohms would do 900 watts, and that would be safe for the the Dual 2 ohm L7 wired to 4 ohms. At 2 ohms the amp puts out 1800 watts. If you had the dual 4 ohm L7 and ran it at 2 ohms, I could not advise running 1800 watts to that subwoofer. You would need either a second battery, or a capacitor with this amp.

thomas Jan 27, 2023 (Staff)

I have 2 LS7, can this Amp be briged?

manuel Oct 12, 2022

1 answer

You can most likely run both LS7's Manny, but you can't bridge the amp because it is a mono single channel. This amp does have 4 total speaker connection lugs, and it IS 1 ohm stable so most like it can handle both subs combined impedance. The Kicker 46CXA1800.1T is a solid choice and should bang!

bo Oct 13, 2022 (Staff)

Would this amp be sufficient for 2 mini mojo 8s wired at 1ohm?

barry Oct 10, 2022

1 answer

Yep! The Mojo 8" have a 900-watt RMS power handling. Two of them could handle the 1800 watts this amp puts out at 1-ohms!

thomas Oct 10, 2022 (Staff)

I have two L5 ten inch subs wired in series so at 4ohm. Would this amp be okay to run for this set up? Also by my calculations for the gauge wire with this set up calls for 87 amps. Is a 4 Awg CCA okay for this?

joshua Jun 17, 2022

1 answer

Greetings Joshua, and thank you for your questions. We are recommending a 1/0 gauge amp wire kit for that amplifier to ensure proper voltage gets to it from the battery. The L5s are rated for 450 watts each, so if you have them wired up at 4 ohms, each will get the 450 watts. The fuse rating for that amplifier is 150 amp.

thomas Jun 17, 2022 (Staff)

What wattage will this amp produce at 3 ohms?

john Mar 31, 2022

1 answer

Right about 1200 watts at 3 ohms

stephanie Apr 03, 2022

Can I use my 2 Jl audio w6 subs with this amp?

dana Mar 31, 2022

2 answers

Yes absolutely, the amplifier is plenty powerful enough for those subs

albert Apr 02, 2022

Yes

joseph Apr 02, 2022

Would this be adequate power for 3 Kicker comp r 12 inch subs?

john Mar 03, 2022

3 answers

It could but that's all your power right there being that the output is 1800 for the subs and amp

eric Mar 06, 2022

I believe it would do the job well, but it really is end user preference.

travis Mar 06, 2022

If they are 600w RMS each I would wire in series and send it.

jeff Mar 05, 2022

Would this be adequate power for 3 Kicker comp r 12 inch subs?

john Mar 03, 2022

3 answers

You won't have any sub left this amp will absolutely destroy those subs even wired at a 4 ohm load it will destroy 12 inch q class solobaric 15s easily so it's way more than adequate it's a death sentence for those level of subs

stephanie Apr 03, 2022

Assuming you have D2 subs, you'll wire each sub in series, then wire them together in parallel. To get max power from the CXA800 you'll want to run at 1ohm. Unfortunately with 3 subs, you can't get down to 1 ohm (you can get down to 1.3ohm). Those subs call for 500w RMS, they want more power than a CXA800 can give them.

cory Mar 07, 2022

The CXA1800.1T should be a nice match for three of those Comp R 12's as long as they are all dual 2 Ohm subwoofers. You would need to Series/Parallel them to get a 1.34 ohm load at the amplifier to get the most out of it other wise, I would look at an amp that can do the 1800 watts rms at a 2 ohm load if your Comp R's are all dual 4 ohm since the lowest you would be able to wire them down to is 2.67 Ohms.

calvin Mar 03, 2022

Could two JL 10w3v3-4 handle this amp at 2ohm?

juan Aug 21, 2021

3 answers

No you'd undoubtedly fry them way to much power wired down to 2 ohms you would be feeding the subs close to 1200 watts each continously which I believe is more than they can handle at peak, though you could run about 1/2gain and probably be ok but I still wouldn't recommend it if you wired them up to 8 ohms then hooked them up at a 4 ohm mono load it would be much safer but this amp really does throw 1800 easy. I smoked a brand new pair of kicker q class 2 ohm subs with the amp at 3/4 power so be cautious cause it's really going to produce what it claims mine puts out over 2000 wats at 14.4 volts

stephanie Apr 03, 2022

Yes you be fine with 8db of overlap. To be safe.. when setting the gains. Hope this helps.

michael Aug 21, 2021

The cxa. 1200.1 would be a better match for those subs. The 1800.1 would likely void the jl warranty and be overkill

travis Aug 21, 2021

Can I run 4 subwoofers with just this amp?

michael Feb 06, 2021

1 answer

You absolutely can although you need to understand ohm value and how to calculate it, you definitely will want to run dual 4 ohm subwoofer and figuring out the ohm value wire the 4 dual 4 ohm subwoofers down to a 2 ohm load.

stephanie Apr 03, 2022

Can I run 4 subwoofers with just this amp?

michael Feb 06, 2021

1 answer

Yes, as long as the final impedance of the 4 subwoofers when wired is at least 1 ohm. The amp puts out 1800 watts rms into 2 or 1 ohm and 900 watts @ 4 ohms. To get the most out of the amp use a 2 or 1 ohm final impedance. Each sub will receive 450 watts rms if running 4, so match your subs to that power.

kevin Feb 07, 2021

Do I really need to purchase a new battery?

hernan juarez Jan 08, 2021

1 answer

High powered amplifiers often has negative effects on OEM batteries, wiring and alternators. When installing a high powered audio system, we recommend starting with the Big Three upgrade, followed by an upgraded battery, and possibly upgrading your alternator as well. How far you need to go will depend on your vehicle, your setup, and how long and hard you push your system. One of our advisors would love to go over some of this with you! https://www.crutchfield.com/support/ContactUs.aspx

thomas Jan 21, 2021 (Staff)

Do I really need to purchase a new battery?

hernan juarez Jan 08, 2021

3 answers

It depends on what your cars alternator is capable of producing typically most cars alternators produce between 140 and 170 amp running a amp like this can easily deplete a single battery and stock alternator, your best bet is to add a second battery and a battery isolator so that the amp only uses power from the added battery and I definitely recommend doing the big 3 wiring upgrade this is all very basic and straightforward car audio installation work I only use optima batteries in my car one for the car and one for my amps, the isolator will swap between your amplifiers needs and your cars needs for voltage it's also good to have a led volt meter displaying your amps battery voltage these big mono kicker amps can operate near full power down to 10 volts but you never want to starve a amp for power, headlights dim due to your voltage dropping to low on a single battery setup this will eliminate that all together and the factory alternator will be able to charge both switching between them with the isolator, I personally run 2 of these amps and 2 other smaller amps on my highs I had to install a high output alternator and I installed 2 dedicated batteries and I never have any issues, I ran the single mono amp and 2 smaller 4 channel amps with just the 1 dedicated battery for a year and had no issues anything install wise you can find videos step by step on YouTube

stephanie Apr 03, 2022

No, but extra battery voltage does help with the light dimming at full power

kun Jan 08, 2021

You will not need a new battery, if you use your accessory switch with the engine off it could drain your battery.

anthony Jan 08, 2021

I got two Rockford T1D212 running at 2 Ohms. Is this amp to much. Or will it work good?

tony Dec 18, 2020

3 answers

Those subs are rated at 1000 watts rms which stands for rated maximum strength and since your subs are 2 ohms apparently this guy has no idea of what the 122 means I'd be cautious at one point I was running the t2 15 4s and I wired them upto 8 ohms so once connected to the amp it would see a 4 ohm mono load it didn't hurt them but it could make them pop causing over excursion of the woofers id you throw the 12s 1800 watts at 1 or 2 ohms your going to fry a thousand dollars worth of subs regardless of what anyone says it's way over rated for the 12s even at 4 ohms mono its still going to push 1200 plus watts continously to both subs, I'm a t series fan myself and I'm running 2 19 inch t series with one of these amps on each sub and it's perfect but be careful with the guessers if they can't tell you specifically how to increase ohm value and your sub is rated at half of what the amp puts out rms don't believe for a minute that you can just turn down the gain and it'll be fine cause all amps produce more than rms while listening to music so ignore the guessing game though them subs are rebuildable which is great for the parking lot installers on here giving advice

stephanie Apr 03, 2022

Depends on the wattage of your speakers. But generally speaking, yes. This amp holds at 1800 watts at 1 ohm or 2 ohms

bryan Dec 19, 2020

I would definitely purchase this amp for your set up!!! I love mine on 4 500watt rms 12's. You won't go wrong!!

todd Dec 18, 2020

Will this power two 12"solo baric l7s?

kyle andrew Mar 08, 2020

3 answers

Depends on what ohms they are and whether you are bridging them.

terry Mar 08, 2020

Wire the pair down to 2 ohms and this amplifier will slam the L7s

travis Mar 08, 2020