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Kicker 12CX600.1

Mono subwoofer amplifier — 600 watts RMS x 1 at 2 ohms

38 Reviews | 7 questions - 23 answers

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Item # 2062CX6001

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Our take on the Kicker 12CX600.1

Leave it to Kicker to come up with this bantam heavyweight. The CX600.1 amplifier delivers up to 600 watts RMS to your subwoofer from a 7" x 8" chassis that'll fit almost anywhere. And they don't cut any corners building this amp, using oversized transistors, special transformers, and a heavy-duty heat sink to bring you awesome power that won't fade when you push your system hard.

Power for your bass

Leave it to Kicker to come up with this bantam heavyweight. The CX600.1 amplifier delivers up to 600 watts RMS to your subwoofer from a 7" x 8" chassis that'll fit almost anywhere. And they don't cut any corners building this amp, using oversized transistors, special transformers, and a heavy-duty heat sink to bring you awesome power that won't fade when you push your system hard.

Control over your bass

Kicker includes a low-pass filter to keep high frequencies away from your sub, a fixed subsonic filter that protects your sub from inaudible, power-devouring ultra-low frequencies, and a variable bass boost that allows you to add some kick to the mix. An optional wired remote bass level controller is available so you can crank the bass up or down from the front seat.

Vertical mounting

Includes hardware for vertical mounting

Hooks in almost anywhere in almost any position

Kicker uses their Fail-Safe Integration Technology (FIT™) to keep this amp's input free from noise or interference, so you'll get a clean signal from almost any system, even a factory radio. Rugged metal end panels provide even more shielding from radiated interference. The CX600.1 also comes with hardware that lets you mount it vertically, so it'll take up very little floor space and look ultra-cool.

Putting together a bass system with this amp? Check out these Crutchfield-approved 8" sub, 10" sub, and 12" sub bass packages.


Kicker CX600.1 amplifier

CX600.1 control panel

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

I would buy again and again!!!!

Anonymous, Mcdonough, GA

Featured Video:

What's in the Box:

  • Mono subwoofer amplifier
  • 2 Vertical mounting brackets
  • Four 3/4" Self-tapping screws
  • 3mm Allen wrench
  • Owner's manual (English/ Spanish/ German/ French)
  • Power certification sheet

Product Highlights:

  • mono subwoofer amplifier
  • 300 watts RMS x 1 at 4 ohms (600 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: 25-200 Hz
  • preamp and speaker-level inputs (optional wire adapter required for speaker-level inputs)
  • balanced differential inputs and Fail-Safe Integration Technology eliminate noise from your vehicle's electrical system
  • preamp outputs for connection to another amp
  • optional remote bass level controller available
  • 4-gauge power and ground leads and a 80-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 80-amp in-line fuse between the distribution block and the amplifier is recommended
  • includes hardware for vertical mounting
  • 8-5/8"W x 2-3/8"H x 7-1/8"D
  • warranty: 2 years (extends to 3 years when purchased with either a Kicker single amp wiring kit or a Kicker multi-amp kit)
  • Our 60-day money-back guarantee

Kicker 12CX600.1 Reviews

Average Customer Review(s):

(38 Reviews)
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Hands-on research

Product Research



Gain: The rotary gain control is continuously variable from 125 mV to 5 V when the Input Sensitivity switch is set to Low and 250 mV to 10 V when the Input Sensitivity switch is set to High.

Input Level Switch: Set the input level switch to Lo when using a preamp level input signal and Hi when using a speaker level input signal.

Crossover: The crossover is always engaged (cannot be bypassed). The crossover point is continuously variable from 50 to 200 Hz and the slope is 12 dB per octave.

Subsonic Filter: The subsonic filter is fixed at 25 Hz and 24 dB per octave.

Auto Turn-on: The amp offers two automatic turn-on modes:

  • +12V: connect a wire from the remote turn-on lead from your source unit to the REM terminal on the amplifier; this is the preferred turn-on method
  • DC Offset: turns the amp on when a 6-volt DC offset is detected at the high-level speaker inputs when the source unit is turned on

Bass Boost: The bass boost circuit is continuously variable from 0 to +12 dB and centered at 40 Hz.

CXRC Remote Bass Control: The bass output level can be controlled remotely using an optional wired remote bass control (item number 20612CXRC, sold separately).

Vertical Mounting: The amp can be mounted vertically using the included brackets. The vertical dimensions are approximately:

  • Width: 9"
  • Height: 7-1/4"
  • Depth: 2-3/8"

Signal to Noise Ratio: The S/N under CEA-2006 compliant conditions (1 watt output) is 75 dBA. The S/N at rated power is 95 dB.


Left Side of Amplifier:

  • +12V (power): set screw terminal; will accept bare wire up to 4-gauge
  • REM (remote turn-on): set screw terminal; will accept bare wire up to 8-gauge
  • GND (ground): set screw terminal; will accept bare wire up to 4-gauge
  • Speaker Outputs: terminal strip with two pair of subwoofer outputs; the two outputs are internally shorted together, making it easy to wire two subwoofers; accepts spade connectors up to 0.325" wide
Note: The Amplifier is not equipped with an internal fuse. An external 80-amp fuse (not included) must be installed on the power wire. If the system has only this amp and a wiring kit is used that includes a fuse with a value other than 80-amps, the original should be replaced with an 80-amp fuse.

Right Side of Amplifier:

  • RCA Input: one pair of stereo RCA input jacks; also used for speaker level input (item number 206KiSL needed, sold separately)
  • RCA Output: one pair of stereo RCA output jacks; line level output when using either preamp or speaker level inputs
  • Remote Bass: 3.5mm mini-jack for use with the optional CXRC wired remote bass level control

Amp Wiring Kit: Kicker recommends using a 4-gauge wiring kit with this amplifier.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Staff Reviews

Product reviews from the Crutchfield Labs

Kicker's Yellow Series of amps, speakers and subs gives you the performance you expect from Kicker at a more affordable price. This year's models are better than ever.

What are the Labs?
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

amp to run kicker box, rms watts match perfect [ Steve  Jan 03, 2016 ]
kicker makes great sounding amps at an affordable price . [ jimmy  Dec 29, 2015 ]
Highly rated with good price. [ Troy  Dec 16, 2015 ]

7 questions already asked

Definitley...I have this amp hooked up to my JL Audio CP212-W0v3 subs and it's amplifies the sound more than you'll ever need for casual use. I would also recommend the Kicker 12CXRC remorte bass control. [ David  Feb 09, 2016 ]
Yes this will be plenty of power. I have 2 10" JL Audio's In my 04 350z. I have had this amp for over a year and half and I have loved it! No complaints with it at all. Great amp. [ Cody Ellis  Feb 09, 2016 ]
Yes. I have had this amp on an L7 12" kicker. Pushed it very nicely. [ Phillip  Feb 09, 2016 ]
This amp has 4 channels for full range or mid-bass - each of which will take a 4-ohm load, and one 2-ohm sub channel, so you can wire both 12" in parallel by wiring both positive terminals on the subs to the + out on the sub channel out, and likewise for the negative terminals. That would give you two subs with a 4 ohm load on the amp. If the subs have dual 8-ohm voice coils you could bridge them both and end up with a 2 ohm load on the amp, which it will handle. Plenty of wiring diagrams will show you how to do this. I don't know enough to tell you why the protection light is on. I'd need to know what else is wired to it. This amp requires 4-guage wire run from the battery with an 80-amp in line fuse 18" from the battery terminal, and the ground wired to the frame. The amp may be sensing it isn't wired properly or grounded properly. You have to take care of that problem first, or rule it out as being the problem. [ P T  Dec 28, 2014 ]
If they are 8 ohm you would need to hook them up in parallel to drop the rating to 4 ohm. The amp should work at 4 ohm If the sub has one set of connections try wiring like this Positive from amp to positive of both subs negative from amp to negative of both subs [ GREG  Dec 27, 2014 ]
It is possible to wire those subs to this amp. To answer your question with the protection light check your fuse in the amp it might be blown. If the fuse is fine make sure your power wire is not grounding out on any surfaces and make sure you have a proper ground if the ground is not correct or the power wire is grounding itself out the amp can go into protection mode to save itself. and in one case i have seen the amp stay in protection mode and never come out with could be an internal circuit has been fried. make sure you dont have the gain cranked turn all your setting down and don't have any subs connected while trouble shooting this issue. [ SEAN  Dec 27, 2014 ]
I really can't say without knowing the information on the speakers. Sorry [ ADRIEN L  Dec 27, 2014 ]
This amp is not equipped with an internal fuse. An 80A inline fuse is recommended. By the way, this thing powers my 1200 watt kicker sub fantastically! What a great combo. [ DILLON  Sep 29, 2014 ]
Some where along your run the ground wire or power wire are grounding the unit out improperly. you might also want to check the fuses to see if there blown. or if the gound wire is not pushed in all the way and is touch the power wire its sending the unit into protection mode. [ SEAN  Sep 23, 2014 ]
I can't give you anything but guesses, but if the protection circuit is on and there is no power indicator light the first thing to check is that you have correct voltage to the amp. This amp requires 4 gauge wire run from the battery with an 80-amp fuse in line on the positive lead within 18 inches from the battery. So that lead runs from the battery positive terminal and the negative grounded to the frame and both run through the firewall to wherever you installed the amp inside the car. I read posts of other people with the same problem that changed out the amp but that did not help them as the issue persisted. If it's hooked up correctly then the next thing to do is take it to a car audio installer. [ P T  Sep 21, 2014 ]
Gain [ MICHAEL P  Aug 10, 2014 ]
Controls the BOOST [ RICKY A  Aug 09, 2014 ]
Gain [ SAMUEL  Aug 09, 2014 ]
Yes it controls the bass boost. Bass is either too low or not enough without it. I suggest getting it as the bass needs adjusted all the time depending on the song and type of music. [ TRAVIS J  Aug 09, 2014 ]
Yes. The amp has two pairs of speaker outputs. You can bridge the amp and drive one 2ohm sub, or you can use all of the outputs and drive 2 4ohm subs. [ P T  May 14, 2014 ]
Yes [ ALEXANDER  May 13, 2014 ]
Yes. That's exactly what I have running mine. [ AARON  May 13, 2014 ]
Depending on ohm, and output I would say probably yes [ MICHAEL P  May 13, 2014 ]
Yes, I have two 12" subs hooked up currently [ JUSTIN  May 12, 2014 ]
What kind of subs? I have two kicker comp d 12" hooked up and they are pretty loud. [ JACOB  May 12, 2014 ]
Yes... No problem. I have the amp running 2 10" Kickers & they hit great!! [ THOMAS  May 12, 2014 ]
It depends on the watts of the subs, if each sub is 300 watts you should be ok, this amp is rated for 600 watts peak. Personally I use this amp to power one 12in apline type s which has 500 watts so I'm never peaking the amp. [ SCOTT  May 12, 2014 ]
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Jan 21, 2014 ]  Staff