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Kicker CX300.1 (12CX300.1)

300W RMS, Class D Mono Block CX Series Car Amplifier

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List price $169.95

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Kicker CX300.1 (12CX300.1)



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Special Price $37.49 ($49.99 if purchased separately)


• 8 Gauge 2-Channel Complete Amplifier Installation Kit
• For Car Audio Systems Up To 600 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

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Kicker Audio Store

Kicker CX Series Amplifiers

Kicker CX series amplifiers were designed by Kicker's expert audio engineers to bring you plenty of clean RMS power for even the most demanding system. Kicker engineered these amps to be ultra compact, meaning there won't be any monsterous amps that you have to design your system around, they'll fit just about anywhere. The CEA-2006 compliant CX300.1 puts out up to 300 watts of RMS power and is compatible with the Kicker CXRC remote bass controller.

Kicker CX Amps are Incredibly Compact Ultra-Compact Footprint

The Kicker CX300.1 will fit just about anywhere, whether you want to install it discretely under a seat, hide it in the back of your trunk or mount it somewhere else. This compact amp measures just over 7" wide, 8" deep and comes in at just over 2" tall. With a footprint this small, Kicker optimized the circuit layout for the most efficient use of components possible.

Kicker CX Amps Can be Mounted Nearly Anywhere Mount Anywhere

To take full advantage of the compact footprint, Kicker includes mounting hardware which gives you the option of vertically mounting your CX300.1 amplifier. With this hardware, you can install the amplifier nearly anywhere in your car, whether you're looking for an inconspicuous and out-of-the-way installation or want to mount your amp to show it off.

Kicker CX Amps Feature High Quality Components Staggering Technology

Beneath the high-mass, super cooling UV protected aluminum heatsink Kicker included double-sided fiberglass circuit boards, incredibly efficient Litz-wound transformers and TO218 output devices which provide high-current switching. Externally, the CX300.1 features buffered RCA outputs, noise-shielding metal-end panels and custom tooled power connectors.

Kicker Audio: Quality, Performance, and Passion
(Sonic at Stillwater Designs HQ)

Kicker Always Exceeds Rated Power

General Features:

  • CX Series Single-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 150 watts x 1 chan.
    • 2 ohms: 300 watts x 1 chan.
  • Max power output: 600 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 40 Hz)
  • Single channel operation
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Heavy duty aluminum alloy heat-sink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 125mV-5V
    • High level: 250mV-10V
  • Variable low-pass filter (50-200 Hz, 12 dB/octave)
  • Subsonic filter (24 dB at 25 Hz)
  • CEA-2006 compliant amplifier
  • Frequency response: 25-200 Hz
  • 8 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • KICKER® will provide an additional One-Year Extended Warranty when you purchase a qualifying KICKER® Installation Kit at the time of your KICKER® amplifier purchase.
  • Dimensions: 7-3/16"W x 8-1/8"D x 2-3/8"H
  • Authorized Internet Dealer
  • 2-year Manufacturer's Warranty (extends to 3 years when purchased with a Kicker amp kit)
Also Found As: CX3001, 12-CX3001, 12 CX 3001

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
150 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
300 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
CX (Kicker)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

600 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

300 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.


Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Fresno, CA

Kicker 300 Watt Class D Sub Amp

April 25, 2014

I have been very pleased, so far, with this amp. The Connectors are of Very Good Quality. The Unit is Small and easy to fit under my Seat. I have not Tuned my System yet, as I need to replace the Factory Speakers and don't want to do it all over again. It is definitely added the Bottom End to my System without any Tweeking. I play my System as loud as I can without causing much Distortion. After driving to or from work, I've touched the Amplifier to see how warm it is. It is Cold. Not Cool, but Cold. I'm running Two 4 Ohm Sub Voice Coils in Parallel for a Two Ohm Load. I am very impressed. The only Negative, if you can call it that, is that my Stereo has only 1 Sub Out, but the Amp has Two Inputs. I had to add a "Y" to feed both Inputs. (Without the "Y", the Amplifier was noticably Lower in Volume.) I am very happy with this purchase.

24 of 41 found this helpful

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Tonawanda, New York

Great Amp

April 17, 2015

It comes exactly as described and performs very very well.

7 of 13 found this helpful

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Perfect amp for my subs

August 4, 2013

Bought this amp with the Kicker 10DC102 subs and they're a perfect match for each other. no over heating whats so ever. great amp.

20 of 41 found this helpful

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Crazy amp

March 16, 2015

This amp is best for beginners who get thir first sub. When i got my first set of subs, i used 2 inifinity references 10 inch, and the amp was emitting 300rms, it was still pounding! Worth the price

8 of 18 found this helpful

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Santa Clarita, CA

Quite surprised

January 19, 2014

This tiny little amp really puts out a good amount of power. As always with kicker it's cleaaaaan. I ended up wanting more watts in the end but this is a very high quality amplifier.

Not the most featured amp but it performs well in tight spaces. Gets warm but not hot.

17 of 36 found this helpful

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salina, KS

big things come in small packages

April 1, 2014

just as the title states this is bar none the best bang for your buck works perfectly in my pickup.
just as you would expect from kicker, exactly whatthe description states

disappointed that it did not com with the remote bass and no kicker stickers

all i all anther great product from kicker and another satsified costumer from sonicelectronix

17 of 38 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT82 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

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Kicker CK8 8-Gauge Wiring Kit

Get a Kicker wiring kit to match your new Kicker amplifier!

Your Price $59.95

Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $151.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Kicker KI24 K-Series RCA Audio Interconnect Cable

4 Meters (13 ft.) 2-Channel K-Series RCA Audio Interconnect Cable

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NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

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NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

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Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

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e2 ECAP1 by Scosche - Mid-Level 1 Farad

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Rockford Fosgate RFC1D - Top of the Line 1 Farad

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Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

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Browse 6 questions and 17 answers
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Why did you choose this?
Sonic Electronix Store
Size and power make it a perfect choice for adding bass without adding extra amps and money
Michael R on Mar 13, 2015
great amp
jimmy p on Aug 3, 2014
I have 2 subs- 125 watts at 4 ohms each. Im wiring them parallel to get 2 ohms with combined 250 watts. Will the Kicker CX300.1 work? I see it is 300 watt RMS which will work, correct? I do see its also 600 peak watts. Safe? Iv been doing my research but need to double check with pros. Thanks.
A shopper on Sep 1, 2014
Best Answer: Hello,

Assuming your subs are Single-4ohm (or you have two Dual-2ohm subs individually wired up to 4ohms), then YES this is a great match, and is safe. It will NOT Void your warranty as long as you practice restraint and don't blow the subs. We often slightly overpower our setups, in order to reach the potential of the subs well before the potential of the amp - which will stress the amp if it were the other way.
Reply · Report · Customer SStaff on Sep 2, 2014
· Add Answer · I Have This Question Too (1)
I have dual clarion subs in a box, that i got around the year 2000. they are 1000watts, but i need help in finding an amplifier to go with them??. i dont know much about the subs, but whatever i do know, i wrote in down in the question. if someone has the info, plz respond to this. thank you :)
karan on Aug 20, 2014
Best Answer: First you'll have to find out more info on your subs, you need to know if there single or dual voice coils; svc or dvc. If you bought the box premade you should be able to find out online but, if someone built the box you'll have to open it to check.... From there you can get the model numbers, look them up and find out there ohms and wattage. This info will determine how to wire your subs and which to buy then it's up to you to decide your budget... I would be more than happy to help you find an amplifier once you do some leg work and get the info above!
Reply · Report · Ken K on Aug 21, 2014
· Add Answer · I Have This Question Too (0)
Hello, I really need help. I bought a 12" kicker comp with a 500 watt peak and 150 RMS. I am going to buy a 680 watt 8 gauge wiring kit and need help finding an amp. Will this be a good amp for the setup? If not can I get an amp model number that will work for this? Any help will be great, Thank you!
IXI TwisT on Oct 1, 2014
Best Answer: If u wire in a 4 ohm way yes. If u run a 2 ohm then u have to remember not to put to much into the sub or u will blow it. And don't forget to break in the sub. 8 gauge should be fine just remember that u will have to upgrade the wire if u ever plan to expand in future. If so save the time and put the 4 gauge in to begin with. use quality name brand OFC wire
Reply · Report · greg b on Oct 2, 2014
· Add Answer · I Have This Question Too (0)
Can I use the cx300.1 to power a kicker 10" compRT 2ohm loaded enclosure as the max the amp puts out is 300watts at 2ohm and the sub is 400watts?
shaun v on May 7, 2015
Best Answer: Hell Shaun,

For future inquiries, please provide a model number to the product(s) you are referencing. It seems that you are referring to ,possible, the TCWRT102 . If so, then the CX300.1 is perfect for that driver. Although its potential is 400w RMS, it is able to handle 100~500w RMS from a proper amplifier; the CX300.1 is a Proper amplifier! =]
Reply · Report · Rick MStaff on May 7, 2015
· Add Answer · I Have This Question Too (0)
Would this amp match up well with a Kicker 40CWRT672 (dual voice coils) with 2 ohm impedance?
Josh W on Sep 15, 2014
Best Answer: Hello Josh,

YES! Perfect match! The Kicker CompRT672 is a Dual-2ohm subwoofer asking for ~150w RMS. Being a Dual-2ohm, your options are to wire down to 1ohm or up to 4ohms. Obviously, you will want to wire in SERIES up to 4ohms, to get the proper 150w RMS from the amp. DO NOT WIRE ANY OTHER WAY! YOU WILL NOT, MAGICALLY, GET ANY MORE POWER. Repeat; you must wire in Series to a 4ohm final load.
Reply · Report · Customer SStaff on Sep 15, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kicker CX300.1 (12CX300.1)

  • Kicker CX Car Amplifier Series
  • How to Install a Car Amplifier