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Kicker 40CWS102

CompS Series 10" 2-ohm subwoofer

13 Reviews | 1 question - 4 answers

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Item # 2064CWS102

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Our take on the Kicker 40CWS102

If you're looking to add some boom to your car's sound system, Kicker's CompS line will get your car shaking without draining your wallet. These subs are the latest in the legendary Kicker Comp line that started in 1986, with a proven pedigree when it comes to delivering powerful bass.

Legendary bass, awesome price

If you're looking to add some boom to your car's sound system, Kicker's CompS line will get your car shaking without draining your wallet. These subs are the latest in the legendary Kicker Comp line that started in 1986, with a proven pedigree when it comes to delivering powerful bass.

Side-view of Kicker 40CWS102 10" sub

The heavy steel basket cuts down on unwanted vibrations.

Kicker technology at work

Kicker's 40CWS102 10" subwoofer features a flex-resistant polypropylene cone for hard-hitting lows without distortion, while the ribbed foam surround promotes long excursion and helps to keep the cone on target. The sub's steel basket provides a reliable foundation for big bass, and its extensive venting ensures long-lasting performance that won't break down when the bass gets heavy.

2-ohm impedance for more power

This sub handles 300 watts RMS to bring out the depth your music's been missing, and its 2-ohm impedance brings out max power from your mono amp. This versatile sub works well in sealed or ported enclosures, and it's even suitable for free-air applications.

To drive this single subwoofer, we recommend a mono amplifier rated between 225 and 450 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Works great has good base and sound!

Thomas, Rutherford, NJ

Featured Video:

What's in the Box:

  • One 10" Single 2-ohm voice coil subwoofer
  • Four 0.25" Crimp on quick slide terminals
  • Owner's manual
  • 2 Kicker decals
  • Template on box

Product Highlights:

  • 10" 2-ohm subwoofer
  • injection-molded polypropylene cone
  • ribbed foam surround
  • suitable for free-air use
  • power handling: 50-300 watts RMS
  • peak power handling: 600 watts
  • frequency response: 30-500 Hz
  • sensitivity: 86.2 dB
  • top-mount depth: 4-3/4"
  • sealed box volume: 1.00 - 2.40 cu. ft.
  • ported box volume: 1.25 - 1.75 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

Kicker 40CWS102 Reviews

Average Customer Review(s):

(13 Reviews)

Kicker 40CWS102

Thomas from Rutherford, NJ on 3/18/2017

Crutchfield Customer Review (What's this?)

Works great has good base and sound!



Awesome Bass

Jorge from St Cloud, FL on 2/9/2017

Crutchfield Customer Review (What's this?)

Big improvement over my old Alpine sub. Nothing wrong with the alpine just not a good match for the amp I had. The two ohms kicker gave me additional 150 watts. Sounds Great, never owned a kicker product before but it seems well built.

Pros: Price, sound.

Cons: None

Great !

JASON from Lancaster, PA on 11/24/2016

Crutchfield Customer Review (What's this?)

Best bass for the money. Sounds better then expected. $69.99 what more could you want ?

Pros: Great deal.

Cons: No

Great replacement for failed RF P300-10 driver

DadInGeorgia from Albany, GA on 8/6/2016

Crutchfield Customer Review (What's this?)

I used this sub to replace a failed Rockford Fosgate P300-10 driver. I should have bought this in the first place. Much tighter bass for my Camaro and perfect complement to the factory Boston Acoustic audio system. It is far more efficient than the RF, as I'm getting cleaner sound and bass with about half of the amp gain I was using before. I'm tempted to get a second one and a good sealed box for my next audio upgrade.



Kicker 40CWS102

Randy from phillipsburg ks on 3/18/2016

2004 Ford F-150
Crutchfield Customer Review (What's this?)

it's a mirror shaker



Good Sub for Under $100

James S from Virginia on 1/18/2016

Crutchfield Customer Review (What's this?)

Good sub for under $100. Clean bass that hits the tight bass notes and extended bass notes without any distortion. I'm only powering it with around 150w RMS since its in-cabin with me and it puts out solid bass. I'm sure with more power it would really pump. Sounds similar to my previous 10in JL which was about double the cost. My only complaint is the sub uses twin-female spade connectors for the speaker wire connections. That makes wiring it up a hassle since you have to split off the (+) and (-) wires from your amp into (Y)s and attach 2 female spade connectors to each. My previous JL just had spring posts which accepted bare wire.

Pros: Sound for the price. Classic, quality, brand. Looks nice.

Cons: Sub wiring requires female spade connectors.

Quality sub for the price point

Joe from Laurel, MD on 9/1/2015

Crutchfield Customer Review (What's this?)

Great sub for the price point. Matched it up with my alpine m350 I had laying around. This sub will hit hard if you crank it. Looks great too.

Pros: Well built, good sound

Cons: None yet

Nice Sub

bob F. from New Jersey on 7/19/2015

Crutchfield Customer Review (What's this?)

Nice hard hitting bass, reasonable price

Pros: Hard hitting , great value

Cons: None


Accord coupe from San Antonio Tx on 7/19/2015

Crutchfield Customer Review (What's this?)

Excellent sound quality, hooked up to kenwood amp powered by factory system. Components up front and 3 ways in the back...matched perfectly with the single sub.

Pros: Sounds great and easy to install, much better then the JL Audio I previously had that went out after 1yr.

Cons: None that I've noticed

kicker 40cws102

Sanchezthenoodle from 11596 on 4/12/2015

Crutchfield Customer Review (What's this?)

excellent sound. Excellent price. Perfect for the set up I purchased

Pros: Excellent price, very good quality

Cons: Only issue I had was that it didn't fit in the stock bracket for the sub I was replacing the way it should have. A few holes drilled and some foam tape on the backside of the bracket and all set

Great product

Clisby from Atlanta, GA on 4/5/2015

Crutchfield Customer Review (What's this?)

Couldn't believe how much sound this small sub put out. Very impressed.

Pros: Minimal box size needed. Big sound with only a 250 RMS kicker amp.

Cons: None.

Great sound

Nate from Arkansas on 1/28/2015

Crutchfield Customer Review (What's this?)

The crutchfield team recommended this sub to match my amp and type of music and they nailed it. The sub sounds awesome with a 300.1 kicker amp and it's not even turned up half way. Great product and fast shipping from crutchfield.

Pros: Sound, power handling

Cons: None

Kicker Comp 10"

Gil from Lincoln,Ca. on 1/18/2015

Crutchfield Customer Review (What's this?)

BOOM. I searched and watched videos until the old me woke up and bass was found. I matched this 10 to a 300.1 kicker amp and sealed a box approximately 1.0qf of air space. I honestly think I am only running half of this amp right now and ac/dc sounds worthy to show all of the firends. This acura rsx is rocking. My hair is moving and I have the sub setting at -3.




Hands-on research

Product Research

Subwoofer Features
Enclosure Compatibility

Subwoofer Features

Ribbed Surround: The optimized ribbed polyurethane helps eliminate flex and distortion.

Spiralead Tinsel Leads: The durable Spiralead tinsel leads are woven into the woofer's spider, for added strength and reliability.

Steel Basket with Vented Pole Piece: The steel basket's vented pole piece and Kicker's Quad Venting slots contribute to the woofers' efficient cooling and durability.

Speaker Terminals: Each speaker terminal has two 0.25" push-on terminals (crimp-on quick slides included).

Enclosure Compatibility

Enclosure Versatility: The Kicker Comp subwoofer is versatile, performing well in vented or sealed enclosures, and in free-air applications.

Sealed Enclosures: A sealed enclosure design offers the smoothest response, with increased energy at the lowest frequencies (between 20 to 30 Hz).

  • Minimum enclosure volume: 1.0 ft³
  • Maximum enclosure volume: 2.4 ft³

Ported Enclosures: A ported (vented) enclosure design is typically more efficient than a sealed enclosure.

  • Minimum enclosure volume: 1.25 ft³ with a 1.5" x 10.5" slot port opening that is 14.5" deep
  • Maximum enclosure volume: 1.75 ft³ with a 1.5" x 10.5" slot port opening that is 13.25" deep

Infinite Baffle Mounting: The Kicker Comp subwoofers are also designed to be used as free-air drivers. The infinite baffle mounting method effectively utilizes the trunk of a sedan as the enclosure.

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.

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Customer Q&A

Crutchfield asked  
Why did you buy this?

Get the most out of my amp 2 ohm vs 4 ohm [ Jorge  Jan 27, 2017 ]
I have two 12" versions of these and they are awesome, I'm pairing two of these with a kicker CXA300.1 and I'm sure they will be awesome, kicker has never let me down before. [ Ben  Jun 11, 2016 ]
for a single subwoofer enclosure [ Jeffrey  Apr 10, 2016 ]

1 question already asked

Probably not. But I'd recommend it for best performance especially if you plan to power it well. I'm not a fan of the twin spade connectors, but I did split my wires at the end and use both. [ JAMES  Mar 13, 2017 ]
I only used one + and - I'm not sure the purpose of the two of each. [ Anthony  Mar 11, 2017 ]
No [ Jake  Mar 10, 2017 ]
yes, just combine the end of your positive speaker wire to make one connection. And do the same for the negative that's having two connections positive and negative. [ JERRY B  Mar 10, 2017 ]