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Kicker KM104W

10" 4-ohm marine subwoofer

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Our take on the Kicker KM104W

by Jon Paulette
Kicker

Bass on your boat

If you want to bump up the sound on your boat, there's an easy solution — add a sub. Specially designed and built for the marine environment, Kicker's durable KM104W 10" marine subwoofer offers exceptional performance, whether it's installed in your bulkhead or housed in a sealed or ported box. It'll add the low-frequency punch your music needs to project over engine, wind, and wave noise. The white finish blends in beautifully with your boat, too.

The KM104W meets or exceeds tough industry standards for resistance to corrosion, humidity, and UV exposure. For extra protection, the woofer sports a water-resistant grille, stainless steel hardware, and splash-resistant locking terminal cover, while its internal structure is sealed against moisture. The woofer's shielded magnet won't interfere with compasses and other sensitive navigation equipment.

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Highlights:

  • 10" 4-ohm marine subwoofer, white
  • injection-molded polypropylene cone with Santoprene rubber surround
  • water-resistant grille
  • sealed motor structure
  • splash-resistant locking terminal cover
  • corrosion-proof stainless steel hardware
  • power range: 30-150 watts RMS (300 watts peak power)
  • frequency response: 30-500 Hz
  • sensitivity: 86.5 dB
  • suitable for free-air applications
  • mounting depth: 5-1/4"
  • recommended sealed box volume: 1.0-1.5 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • 10" Woofer
  • Woofer grille
  • Eight 1-1/2" Stainless steel self-tapping screws
  • 8 Stainless steel speed clips
  • Manual (English/ Spanish/ German/ French)

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 open the box, verify contents, 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.

Features
Enclosure Compatibility

Features

Marine-Ready: The Kicker KM10W Marine Subwoofer is engineered to meet or exceed industry standards for environmental humidity and corrosion, and for material degradation due to UV exposure. The sub features a sealed motor, cone, and locking wire terminal cover. UV treatments on the cone, surround, basket, and grille help them last in freshwater or saltwater environments.

Cone: The injection-molded polypropylene cone is UV light, pollution, and moisture resistant. For increased durability, the surround is Santoprene rubber.

Magnetic Shielding: The KM10W is magnetically shielded to minimize compass and gauge deviation in your dash.

Terminal Cover: The speaker terminals feature a splash and spray resistant locking cover. The cover also provides strain relief, insulation, corrosion protection, and aids in ignition protection.

Stainless Hardware: The provided hardware is forged from corrosion proof 316L stainless steel.

Grille: The KM10W comes with a water-resistant, bolt-through, high-impact plastic grille to protect the woofer.

Enclosure Compatibility

Mounting Flexibility: The Kicker KM10W can be mounted in sealed or vented enclosures, or it can be mounted free-air. If the subwoofer is to be used in a marine environment, the enclosure should be built with 3/4" thick Marine Grade plywood.

Sealed Enclosures: Sealed enclosures give the smoothest response, with increased energy at the lowest frequency octave (20-40 Hz). The KM10W performs well in any size sealed enclosure between the Compact and SQ volume recommendations. Compact enclosures are ideal when space is at a premium, producing high-impact bass. SQ enclosures are ideal for ultra sound quality, and generate a flat response curve and extend the sub-bass response.

  • Compact Sealed Enclosures: internal volume 1.0 ft³
  • SQ Sealed Enclosures: internal volume 2.4 ft³

Vented Enclosures: Vented enclosures increase bass efficiency, and the compact version fits in many space-limited applications. Compact enclosures are the smallest recommended vented enclosure, but still feature higher output in the 30-80 Hz range than sealed boxes. SPL/Deep Bass enclosures are the largest and most efficient, and produce extremely low bass notes. Because of the length of the recommended ports, Kicker recommends slot ports instead of round ports.

  • Compact Vented Enclosures: internal volume of 1.25 ft³, with a slot port 1.5" high x 10.5" wide x 14.5" long
  • Deep Bass/SPL Vented Enclosures: internal volume of 1.75 ft³, with a slot port 1.5" high x 10.5" wide x 13.25" long

Free-air Mounting: In addition to being compatible with sealed and ported enclosures, the woofer can be used in free-air applications (also known as infinite baffle), often using a storage space as an enclosure.

 
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Kicker KM104W Reviews

Average Customer Review:

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4 out of 5

Kicker KM104W

Written By Eric, Tulsa, OK on Thursday, September 26, 2013
Crutchfield Customer Review (What's this?)
 
Speaker looks great and was easy to install. Supplied grill looks awesome. Sound quality is great with most music; however, it does start to distort when playing music with really low bass tones. May have more to do with my amp than anything. Overall, I'm very pleased with the product and Crutchfield was great as always. Shipped the same day and had it in just a couple days.
Pros:
Appearance and overall sound quality
Cons:
Distortion with extremely low tones. May have more to do with amp than speaker though. Still working on the balance.
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4 out of 5

Pretty Good

Written By Dane, Virginia Beach, VA on Monday, August 12, 2013
Crutchfield Customer Review (What's this?)
 
Marine installation in the cabin of my boat. Sound is good - I have a direct comparison with another sub installed topside, a JBL MX10IB3-CG-WH. Both are powered by the same amp and mounted to cabin walls with small compartments behind. The JBL puts out more sound, but that might be the result in a slight difference in enclosures - the Kicker enclosure has a top which is not secured (a rigid seat cusion). The JBL enclosure is larger, but all walls are solid. In a perfect world I would have gotten a 2nd JBL, but some other Kicker midrange speakers i got were so awesome, I thought I would try their sub.
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Add accessories for the Kicker KM104W

Make sure you have speaker wire for your sub installation. See all categories & accessories

JL Audio XM-WHTSC16 Speaker Wire 16-gauge marine speaker wire — priced per foot
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S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire
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Pro.Fit Wire Worm Installation tool helps route wiring through tight spaces
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Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
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Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
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XTC 10" Speaker Baffles Protect your speakers! (6-1/4" depth)
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For a more in-depth review and enhanced detailed information on the Kicker KM104W, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_20611M104W/Kicker-KM104W.html ).

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