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Kenwood Excelon KFC-XW12

12" 4-ohm subwoofer

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  • Kenwood Excelon KFC-XW12

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  • Kenwood Excelon KFC-XW12

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  • Kenwood Excelon KFC-XW12

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  • Kenwood Excelon KFC-XW12

  • Kenwood Excelon KFC-XW12

  • Kenwood Excelon KFC-XW12

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Our take on the Kenwood Excelon KFC-XW12

by John Pollard
Kenwood

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

High performance bass
Kenwood puts their most advanced technology into the Excelon subwoofers, so you can enjoy reliable high-performance bass in your ride. This KFC-XW12 12" sub comes equipped with a polypropylene cone attached to a heavy-duty rubber surround that allows for extra excursion, so it'll take whatever you throw at it. The cone is reinforced by a ribbed "Square Array" pattern that helps it to keep its shape through heavy play. The KFC-XW12 is rated to handle up to 400 watts RMS so you know it's ready to rock.

Read more

Side view of subwoofer

Keeping it cool
A dual ventilation system forces heated air out of the motor structure through the back and the sides of the sub, so the inner works stay cooler during extended play. This ventilation system also allows this sub to operate in an extremely shallow enclosure, good news if you're building a box to go in a tight spot. Install this Kenwood in a suitable box, hook up a nice amp, and you're ready to rumble.

To drive this single subwoofer, we recommend a mono amplifier rated between 300 and 600 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Highlights:

  • 12" 4-ohm subwoofer
  • textured polypropylene cone with rubber surround
  • power range: 50-400 watts RMS
  • peak power handling: 1,200 watts
  • frequency response: 34-300 Hz
  • sensitivity: 85 dB
  • top-mount depth: 6-3/16"
  • sealed box volume: 1.25 cubic feet
  • ported box volume: 2.0 cubic feet
  • warranty: 2 years
  • Our 60-day money-back guarantee

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

Features and Specs
Size 12 -inch
Impedance 4 ohms
Cone Material Polypropylene
Surround Material Rubber
Ideal Sealed Box Volume (cubic feet) 1.25
Ideal Ported Box Volume (cubic feet) 2
Port diameter (inches) N/A
Port length (inches) N/A
Free-Air No
Dual Voice Coil No
Sensitivity 85 dB at 1 watt
Frequency Response 34 - 300 Hz
RMS Power Range (Watts) 50-400
Peak Power Handling (Watts) 1200
Top Mount Depth (inches) 6
Bottom Mount Depth (inches) 6 3/16
Cutout Diameter or Length (inches) 11
Vas (liters) 78.7
Fs (Hz) 25
Qts 0.9
Xmax (millimeters) 15.1
Parts Warranty 2 Years
Labor Warranty 2 Years
Product Research
What's in the box?

Download owner's manual

  • One 12" Woofer
  • Plastic trim ring
  • Eight 1-3/8" Self-tapping screws
  • Adhesive backed foam gasket
  • Cardboard template
  • Instruction manual (English/ French/ Spanish/ Portuguese)
  • Warranty information
  • Specifications listed on box top flap

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

Heat Transfer System: The dual ventilation system design helps keep the motor structure cool, improving power handling and longevity.

Long Stroke Design: The pole piece has been extended to provide a more linear magnetic field for woofer operation. This lowers distortion and provides the woofer with better low frequency response.

Double Stacked Magnet: The stacked magnet assembly is used to create a powerful linear motor with increased excursion capability for superior bass output.

Spring Terminals: The spring post terminals on one side of the woofer connect to your amplifier's wiring. The posts will accept pin connectors, single banana plugs, or bare wire up to 8 gauge.

Trim Ring: The included cosmetic trim ring adds to the speaker's mounting height when top mounted. The mounting height (and flange height) becomes 0.71 inches.

Enclosure Compatibility

Sealed Box: Kenwood recommends a sealed enclosure with an optimum internal volume of 1.25 cubic feet (from 0.75 to 1.75 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Ported Box: Kenwood recommends a ported enclosure with an internal volume of 2.0 cubic feet (from 1.5 to 2.5 cubic feet is acceptable) using an 13-3/4" x 1-1/2" x 21-1/2" slot port. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output.

 
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Kenwood Excelon KFC-XW12 Reviews

Average Customer Review:

6 people say:

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5 out of 5

Got these Bad Boys

Written By jgtmission, Houston, Texas on Saturday, September 13, 2014
 
I have Kenwood dash, Kenwood amp and now Two Kenwood Bad Boys. They look Clean "check" , they sound Mean "check" and turn Heads "check" . I have mine face in Box to hit harder, try it!
Pros:
Price is right, no need for sum over exaggerated over priced speaker when these are enough.
Cons:
No free amp ??
1 out of 1 people found this helpful
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5 out of 5

Beyond loud!

Written By Trey R, Moses washington on Tuesday, June 11, 2013
 
I had these subs for a year before they were stolen a couple days ago. they were awesome loudest of any of my friends and I had the kenwood excellon amp only turned up half way I set off car alarms it was awesome (no wonder they were stolen they could hear me from a mile away) they took a beating and still held up. this is an awesome buy!
Pros:
sound quality, tough, looks good, inexpensive.
Cons:
mine were stolen..
2 out of 3 people found this helpful
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5 out of 5

Awesome

Written By Daril, Jacksonville on Saturday, March 23, 2013
 
Ok, i gave 5 in value. You shouldnt put a 1000rms watts amp for a 400rms speakers, You are doubling the power these speakers can take, plus, at 2 ohms, even worst, yes, at two ohms sound twice as powerful, but the coil resistant goes down twice, so yeah, thats equal to fire. I have these subs with a kenwood amp, is 300watts at 4 ohms, 500rms watts at 2 ohms, yes, these is the amp u want with these subs(pair on parallel). Is the speakers says, 400Watts max, stay in that range, dont go to high with the amp. Mine sounds great, great bass, sealed box, could not be happier. yes, i do recommend these subs, just DO NOT put a Monster amp, they are 400Watts, keep that in mind!
Pros:
deep bass, great sound.
Cons:
nothing
1 out of 1 people found this helpful
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2 out of 5

Not too happy...

Written By Jeff, Riverside on Sunday, December 09, 2012
 
The subs sounded okay with my Rockford prime 500.1, so I upgraded to a alpine mrx 100. Which is 1000.1 at 2 ohm. Well everyone said it would work without a problem without blowing the subs. I had the gain barely even on and the subs started smoking and the coils burned! Ya, they caught fire!
Pros:
Sound ok...
Cons:
Can't overpower at all, they will blow!
1 out of 6 people found this helpful
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5 out of 5

Waay Nice

Written By Dickies_x3, Lincoln, ne on Wednesday, October 24, 2012
 
I recently bought a pair of these with my girl along with a Kenwood 500w mono block amp. Im only giving the subs about half of what they can handle, and it STILL hits hard!! We thump everywhere we go, for the price these cant be beat in my opinion.
Pros:
Nice sound for the price.
Cons:
Not very interesting visually
4 out of 4 people found this helpful
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5 out of 5

Enjoy quality sound at an affordable price

Written By Xxwiinxx, California on Tuesday, June 12, 2012
 
Sick bass. You can throw everything at it and it will not dissapoint. Very durable and the quality is superb. Wait there's more. You can't beat the price. Well worth your investment for your first sound system setup. Two thumbs up.
Pros:
Deep clear bass. Power output is superb. Durable. Good construction quality. Affordable price
Cons:
None I can think of.
3 out of 3 people found this helpful
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For a more in-depth review and enhanced detailed information on the Kenwood Excelon KFC-XW12, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_113XW12/Kenwood-Excelon-KFC-XW12.html ).