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Mono subwoofer amplifier 300 watts RMS x 1 at 2 ohms
Our take on the Kicker 12CX300.1 by Crutchfield's Buck Pomerantz
Power for your bass
Leave it to Kicker to come up with a great way to get strong bass in your ride. Their CX300.1 amplifier delivers up to 300 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.
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 CX300.1 also comes with hardware that lets you mount it vertically, so it'll take up very little floor space and look ultra-cool.
CX300.1 control panel
I got this amp for my daily driver. Didnt want too much bass. Powering a kicker 10 comp. Amp is small but packs a punch!
What's in the Box:
- Mono subwoofer amplifier
- 2 Vertical mounting brackets
- Four 3/4" Self-tapping screws
- Owner's manual (English/ Spanish/ German/ French)
- Power certification sheet
- mono subwoofer amplifier
- 150 watts RMS x 1 at 4 ohms (300 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
- 8-gauge power and ground leads and a 40-amp fuse recommended wiring and hardware not included with amplifier
- no onboard fuses when installing multiple amps in a system, an additional 40-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 12CX300.1 Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||
150 x 1
|Peak Power Output (Watts x Channels)||600 x 1|
|Power at 2 Ohms (Watts x Channels)||300 x 1|
|Bridged Power (Watts x Channels)||N/A|
|Minimum Impedance Bridged||N/A|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||25-200 Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||75 dB|
|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||0-12 dB|
|Bass Boost Frequency||40 Hz|
|Speaker Level Inputs||RCA|
|Preamp Outputs||1 pair|
|Parts Warranty||2 Years|
|Labor Warranty||2 Years|
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.
Optional CXARC Remote Bass Level Control: The CX300.1 is compatible with the optional CXARC remote bass level control which allows you to remotely control the output level of the amplifier. The CXARC's control knob can be mounted near the driver's seat of your vehicle, while the control's 19.75' cable is extended to the amplifier location.
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): terminal strip; accepts spade connectors up to 0.5" wide
- REM (remote turn-on): terminal strip; accepts spade connectors up to 0.325" wide
- GND (ground): terminal strip; accepts spade connectors up to 0.5" wide
- Speaker Outputs: terminal strip with two pair of subwoofer outputs; the two outputs are internally shorted together, making it easy to wire two subwoofers; accept spade connectors up to 0.325" wide
Note: The Amplifier is not equipped with an internal fuse. An external 40-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 40-amps, the original should be replaced with a 40-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 CXARC wired remote bass level control
Amp Wiring Kit: Kicker recommends using an 8-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.
Product reviews from the Crutchfield Labs
by Zak Billmeier
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.
Why did you buy this?
Has the same watt ratings as the subwoofer it will power and extends the warranty on it as well [ Chad Jan 30, 2016 ]
Quality amp for the money. Better than average performance compared to other amps that claim same power specs. [ Niel Jan 28, 2016 ]
To power a 10 inch sub in my daughters truck. It works great. [ Karl Jan 27, 2016 ]
This will replace my factory amp and power the Kicker 8" sub I bought to replace the factory sub. [ Tim Jan 04, 2016 ]
A friend recommend this amp to me. [ Westley Jan 02, 2016 ]
love kicker products [ Thomas Lee Jan 01, 2016 ]
These amps are great! I bought one in 2010 to install in a previous auto I owned. [ Alan Dec 28, 2015 ]
I picked this amp because the rms wattage output of this amp should be perfect for my "8 kicker sub I just ordered. [ ALBERT Dec 24, 2015 ]
Got for a ssv works subwoofer [ Samuel Dec 07, 2015 ]
compatibility with speakers I purchased [ paul Dec 06, 2015 ]
12 questions already asked
Product Highlights: mono subwoofer amplifier 150 watts RMS x 1 at 4 ohms (300 watts RMS x 1 at 2 ohms) I copied and pasted from the Crutchfield website. It seems like this amp is a perfect match for your sub wiring (300 watts RMS at 2ohms) [ Ed Apr 19, 2017 ]
I did the exact same thing. It really is fine at 150 rms at 4 ohms. I wouldn't recommend running at 1 ohm because you can do significant damage to the speaker over time with that little resistance. [ AUSTIN Apr 17, 2017 ]
Unfortunately I can't answer the 1ohm wiring part. But I can say that I have this running a single 12" JL Audio sub through high-inputs off of a factory radio. And the amp is solid!! Never ever had an issue with it & it sounds great! Hope this helps! [ David Apr 17, 2017 ]
It will work ok but I would try to find something that would produce 120 watts rms @ 8 omh. [ LESLIE Mar 23, 2017 ]
as long as it stays in the recommended ohm load it should be fine [ Brian Feb 25, 2016 ]
Yes it could but I don't think you'd be happy with it. It's a mono amp (1 channel). Why run 2 speakers on 1 channel? You'd only be pushing like 150 watts to each speaker (assuming 2 ohms for each speaker). Your speakers are probably able to handle a lot more than that. So why such a small amp for such a big load? But, that is your call. I have mine running only 1 kicker 8" series r comp and it sounds good. Don't think I'd be happy with it running 2 though. [ matthew Feb 25, 2016 ]
I'm pushing 2 12" cvr kicker with this amp. I assume it should be enough for 2 10". [ CESAR O Jun 17, 2015 ]
I Am powering one twelve inch sub and this amp has more power than the one speaker can handle. I cannot assure you that it will be enough but I feel it will. [ DOUG E Jun 16, 2015 ]
I think you better you better go with the 600 W amp. [ REYNALDA D Jun 16, 2015 ]
No u need the 600 [ eddie Jun 16, 2015 ]
1 answer I bought this amp with a 10" kicker comp sub and have misplaced the book. Right now I have two of the four speaker wire connections running to the sub. One + one -. It seems since the speaker also has four do I wire all four from the amp to speaker to maximize what I have? At this point the bass pounds hard so I may not need more yet just incase. [ Gil H Jan 18, 2015 ]
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Krissy Jan 18, 2015 ] Staff
No it is a mono channel amp and there is only 1 channel. Class D amps are already bridged just don't heat up like when bridging a 2 channel amp. [ underwear Dec 04, 2015 ]
Nah man. Works good [ Brent Aug 22, 2014 ]
The amp is great. It has more than enough power for the 10" sub. [ clinton Aug 19, 2014 ]
Nope it should be fine because it is 300 watts at 2 ohms. So you can divide that in half for 4 ohms. So 150 watts would be just fine. Probably just right. [ Adam Aug 19, 2014 ]
Hey Sam, This amp works perfect for my 10" Kicker sub so should work fine for you. [ Bruce Aug 18, 2014 ]
Addendum to my prior answer. After reviewing the product manual it appears the amp will work at 4ohm 150 watts rms. Check the wiring diagram page and pick which setup works best for your subwoofer Apologies for the confusion. Thought it was 2ohm only amp. [ Aaron Aug 17, 2014 ]
This is a 2 ohm amplifier. If your subwoofer is single coil 4 ohm it will now work properly. If the subwoofer is dual voice coil 4 ohm you can use this wiring diagram: 1 DVC 4 ohm mono http://www.crutchfield.com/S-MiP3pw5wfSl/learn/learningcenter/car/subwoofers_wiring.html It's more power than that subwoofer needs, but if you don't turn the gain up so far as to cause clipping, it'll do nicely and you have room to upgrade. I recommend also buying the remote bass control. The little knob adjuster makes listening to a variety of music a lot more enjoyable. [ Aaron Aug 17, 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 Aug 16, 2014 ] Staff
I just connected it to the same wires that ran to my old subwoofer, then adjusted volume on the amp to match by ear. The remote bass boost button is then used to tailor it as needed based on the source. [ COLLIN C Aug 14, 2014 ]
Physically no. Ideally you would set the gain for each channel so that at maximum volume there is no distortion. But of course you would want to turn it down to match the volume levels of your other speakers. [ Guest Aug 13, 2014 ]
No, it all depends on the speakers you are driving in how you make the adjustments [ DOUG E Aug 13, 2014 ]
The gain is an independent control on the amp therefore it will control whatever you have your amp connected to. I'm running a mono setup so my amp is only outputting to my sub(bass). The highs and mids are all controlled from my receiver/deck and output to 4 3-way speakers mounted in my doors. I just played with everything and fine tuned it to get a rich equal sound. I also have the remote for the amp so I can adjust the bass on the fly for whatever type of music I am listening to. I have noticed that on my setup and with previous serious before that when you turn the gain all the way up you will start getting distortion at higher volumes. I hope this helps. If you have any other questions feel free to ask [ SHEA M Aug 13, 2014 ]
No , and it all depends on your type of music also, I adjust mine according to music , hope this helps . James [ JAMES Aug 13, 2014 ]
I forwarded your question to an Advisor and they responded with the following: From the information we are provided and looking at the owner's manual it looks as if you will need a remote bass controller for each amplifier individually. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Mar 31, 2014 ] Staff
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 Mar 16, 2014 ] Staff
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 Mar 02, 2014 ] Staff