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.

Our take on the Kenwood Excelon KFC-XW800F

by Dominic Devito

The Kenwood Excelon KFC-XW800F 8" "flat" subwoofer produces serious bass output in the hard-to-fit areas of your compact car or truck. And this shallow-mount sub measures under 3 inches deep, so you can get creative with your installation.

The carbon-glass fiber cone employs a honeycomb pattern to deliver quick response in demanding conditions without flexing. The beefed-up rubber surround maintains control over the cone, minimizing distortion caused by resonance. A die-cast aluminum basket offers a rock-solid housing with plenty of venting to keep the heat down. The silver-plated push terminals offer convenient connections and provide excellent signal transfer.

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Highlights:

8" 4-ohm shallow-mount subwoofer
carbon-glass fiber composite cone with butyl rubber surround
cast aluminum basket
power range: 50-150 watts RMS
peak power: 600 watts
frequency response: 40-500 Hz
sensitivity: 78 dB
mounting depth: 2-3/4"
sealed box volume: 0.5 cu. ft.
ported box volume: 0.5 cu. ft.
warranty: 2 years
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Features and specs chart | What’s in the box? | In-depth notes

Features and Specs


Size Loading...	8 -inch
Impedance Loading...	4 ohms
Cone Material Loading...	Carbon-glass fiber
Surround Material Loading...	Butyl rubber
Ideal Sealed Box Volume (cubic feet) Loading...	0.5
Ideal Ported Box Volume (cubic feet) Loading...	0.5
Port diameter (inches) Loading...	N/A
Port length (inches) Loading...	N/A
Free-Air Loading...	No
Dual Voice Coil Loading...	No
Sensitivity Loading...	78 dB at 1 watt
Frequency Response Loading...	40 - 500 Hz
RMS Power Range (Watts) Loading...	50-150
Peak Power Handling (Watts) Loading...	600
Top Mount Depth (inches) Loading...	2 3/4
Bottom Mount Depth (inches) Loading...	3 5/16
Cutout Diameter or Length (inches) Loading...	7 3/16
Vas (liters) Loading...	10.7
Fs (Hz) Loading...	43
Qts Loading...	0.812
Xmax (millimeters) Loading...	6.5
Parts Warranty Loading...	2 Years
Labor Warranty Loading...	2 Years

Product Research

What's in the box?

Download owner's manual

One 8" SVC Woofer
Rubber concealing ring (installed)
Self-adhesive foam strip
8 Mounting screws
"Kenwood" logo sticker for woofer
"eXcelon logo sticker for woofer
Cardboard template
Instruction Manual (Eng/Fre/Spa)
Warranty Card

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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

Flat Subwoofer: The Kenwood eXcelon flat subwoofer design is approximately 40% slimmer in height than a standard subwoofer. This makes them ideal for installation in the tightest of spaces such as behind or under the seat of a pickup truck.

Carbon-Glass Fiber Cone: The eXcelon flat woofer uses a carbon-glass fiber honeycomb cone which allows the woofer to be efficient and durable at the same time.

Rubber Surround: The Kenwood woofer features a smooth linear rubber surround for added durability and increased excursion resulting in exceptional deep bass response.

Super Linear Spider: The flat woofer utilizes a super linear spider for maximum control over the woofer's linear motion to improve overall sound quality.

Heat Transfer System: The Kenwood woofer features an advanced Heat Transfer System designed specifically for its slim-design to provide proper ventilation to keep the woofer cool.

Aluminum-Cast Basket: The woofer is housed in a cast-aluminum basket for increased rigidity and long-lasting reliability.

Spring Terminals: The flat woofer utilizes a pair of silver-plated spring terminals on one side of the woofer for connection to your amplifier's speaker wiring. The spring terminals will accept up to 10 AWG speaker wire.

Concealing Ring: The eXcelon woofer comes supplied with a removable, rubber concealing ring used to hide the woofer's mounting screws for a neat and professional looking installation. The concealing ring increases the top mounting height to 0.875".

Enclosure Compatibility

Sealed Box Volume: The sealed box size recommended by Kenwood is 0.5 cu/ft.

Vented Box Volume: The vented box size recommended by Kenwood is 0.5 cu/ft. One 1-3/16" x 11" x 17-1/8" (long) slot port should be used with a 0.5 cu/ft enclosure.

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Reviews for the Kenwood Excelon KFC-XW800F

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5 people say:

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5 out of 5

I like it

Written By Jjkinsd, San Marcos, CA on Wednesday, May 16, 2012

Crutchfield Customer Review (What's this?)

This sub does exactly what it is advertised to do. I had the need to build a custom, shallow odd shaped box (sealed) to fit where a sub is not supposed to and this fit the bill. If I were able to fit the 10" version, I would have but the 8" sounds great. I was just looking to fill in the bottom end (mostly rock/punk/alternative) and I am very pleased with my selection. I am feeding it with a kicker 140w @ 4ohms and so far this seems to be a good match. I couldn't quite get the recommended .5 cu ft, closer to .4, but used polyfil, made sure the box is well sealed and the result is good clean full sound. Great sub for applications tight on space.

Pros:

Shallow mount, quality construction, good sound.

Cons:

None

2 out of 2 people found this helpful

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5 out of 5

Replaced stock sub in my 1999 Mercury Mountaineer

Written By TommyA, The Dalles, Oregon on Wednesday, October 19, 2011

I needed a replacement sub for my blown stock sub in my 1999 Mercury Mountaineer. The stock sub is 8" and is pretty shallow. Only option I saw were the MTX, a JL audio, a Pioneer Shallow Mount, and this Kenwood.

The Mach audio system has a 85w RMS amp(150w Peak), I didn't think this speaker stood a chance because it had lower db's than the other speakers that would fit, which means it needs more watts to put out the same sound.

Anyways coming down to it all I found a tutorial on how to get the old sub out, and the screw that screws into the back of the stock speaker magnet. Really simple job to replace, I did it all in under 1 hour. I found a plug at True Value for 30 cents that filled the hole that was left after I put the aftermarket sub in.

Very helpful info is available on online forums for those wanting to change the stock sub in expeditions, explorers, mountaineers.

15 out of 15 people found this helpful

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4 out of 5

Nice

Written By sirheck, Oklahoma on Saturday, May 28, 2011

Paired this with a pioneer GM5400t amp, which is rated at 380 watts x1RMS at 4 ohms and is CEA compliant. It hits hard but the Pioneer amp runs hot.

1 out of 4 people found this helpful

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5 out of 5

This sub fit a shallow area/enclosure.

Written By Happy Camper, Smyrna, GA on Monday, May 23, 2011

Crutchfield Customer Review (What's this?)

This sub fit into my stock sub housing for my 98' Mercury Moutaineer's stock Mach audio system which is located on the passenger side spaced behind the rear wheelwell. It has a more shallow depth compared to the majority of subwoofers available in 8" but the sound is very good. Comparing the original sub with this Kenwood sub, it's pretty evident why aftermarket speakers are the way to go. The quality in appearance alone amazed me. The sales rep, Adam via instant messaging, was very helpful in helping me choose the right subwoofer to make the replacement installation simple. It took me less than an hour to finish and I'm really enjoying my tunes again. Thanks!!

2 out of 3 people found this helpful

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5 out of 5

Great for an 8" sub

Written By James, Southern California on Monday, September 21, 2009

I put this sub in a custom box I built for an 07 Frontier crew cab. The box has a little over .5 cubic feet. The key to making the sub sound great is having a good amp to go with it. I origanally hooked up a cheesy 300 watt amp and I couldn't even hear the sub. I ended up getting the Kenwood KAC-6104D 600 watt mono sub amp. That made all the difference. The sub sounds great. It doesn't hit like a ten but it fills in the bass that is missing from your system.

18 out of 20 people found this helpful

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1-5 of 5

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Kenwood Excelon KFC-XW800F

Shallow-mount 8" 4-ohm subwoofer

Item# 113XW800F offer details

Review Summary

By buying this product you'll earn up to 153 Rewards points.

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

Our take on the Kenwood Excelon KFC-XW800F

by Dominic Devito

Highlights:

Shop all Kenwood Component Subwoofers

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

Features and Specs

Product Research

Our Product Research Team

Features

Enclosure Compatibility

Product Reviews

Reviews for the Kenwood Excelon KFC-XW800F

Average Customer Review:

Review this product:

Crutchfield Video Review Guidelines

Filter by rating:

I like it

Replaced stock sub in my 1999 Mercury Mountaineer

Nice

This sub fit a shallow area/enclosure.

Great for an 8" sub

Accessories

Add accessories for the Kenwood Excelon KFC-XW800F

It's critical to have good wire, and none is included with the sub. See all categories & accessories

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