Directed Audio Xtreme 104SX

10" 4-ohm subwoofer

  • Directed Audio Xtreme 104SX


  • Directed Audio Xtreme 104SX


  • Directed Audio Xtreme 104SX

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Item #: 607X104SX

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Our take on the Directed Audio Xtreme 104SX

by Ken Nail

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.

Want a sub that'll hit hard, play clean, and do it without taking up a lot of space? Directed Audio optimizes their Xtreme SX subs for small sealed or ported boxes, so they match your taste in bass without wasting space.

The 104SX 10" subwoofer features a sturdy Kevlar-reinforced paper cone that won't flex and distort your tunes, even during extreme bass production. The durable rubber surround allows plenty of movement and holds up to the unavoidable extremes of temperature and humidity in a car environment. A sharp-looking Xtreme logo graces the cone's dustcap, ready to inject a little style into your ride.

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  • 10" 4-ohm subwoofer
  • Kevlar-reinforced paper cone with rubber surround
  • power range: 50-200 RMS watts (500 watts peak power)
  • frequency response: 40-2500 Hz
  • sensitivity: 89.58 dB
  • mounting depth: 4-5/8"
  • sealed box volume: 0.40-1.25 cu. ft.
  • ported box volume: 0.75 cu. ft.
  • warranty: 2 years
  • Our 60-day money-back guarantee

Priced per speaker

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

Features and Specs
Size 10 -inch
Impedance 4 ohms
Cone Material Kevlar-reinforced paper
Surround Material Synthetic rubber
Ideal Sealed Box Volume (cubic feet) 0.5
Ideal Ported Box Volume (cubic feet) 0.75
Port diameter (inches) 3
Port length (inches) 10
Free-Air No
Dual Voice Coil No
Sensitivity 89.58 dB at 2.83 watts
Frequency Response 40 - 2500 Hz
RMS Power Range (Watts) 50-200
Peak Power Handling (Watts) 400
Top Mount Depth (inches) 4 5/8
Bottom Mount Depth (inches) 5
Cutout Diameter or Length (inches) 8 11/16
Vas (liters) 21.66
Fs (Hz) 45.25
Qts 0.64
Xmax (millimeters) 8.5
Parts Warranty 2 Years
Labor Warranty 2 Years
Product Research
What's in the box?

Download owner's manual

  • 10" Subwoofer
  • Specifications sheet
  • Warranty sheet
  • Product Registration card

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.


Construction: The Xtreme 104SX subwoofer has the following components:

  • Cone: sturdy Kevlar-reinforced paper cone
  • Surround: tough, high-damping, wide synthetic rubber surround
  • Spider: Paper Conex spider
  • Voice Coil: single 4-ohm, 4-layer voice coil with Kapton voice coil former
  • Basket: heavy steel stamped basket

Venting: The subwoofer's voice coil is vented through the cone and voice coil former. The speaker also has an aerodynamic pole vent, and a bumped back plate.

Terminals: The speaker has male 0.205" quick-slide terminals. The positive and the negative both have two quick slides to allow you to connect more than one speaker wire per terminal.

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Directed Audio Xtreme 104SX Reviews

Average Customer Review:

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5 out of 5

These are amazing! Super deep bass!

Written By Garrett, Sacramento CA on Tuesday, January 07, 2014
These are unbelievable for that price. I bought 2 used and wired them to a 350 watt rms amp and they were way to loud!. Ive been running 1 of them in a small sealed box for over a year, it sounds incredible! At first install it didn't sound good, so I used an old trick and stuffed the inside of a pillow, poly, into the box. It sounded better, so I stuffed another one! Ha Ha, then it thumped like crazy, huge difference. I love this sub, and I'm hanging on to the second one as a spare. Oh ya, the one sub is running off an Interfire 700.2 which gets 350 watts RMS! I have the gain way down, but it can take it, sounds perfectly clean too. Great sub,
Deep bass when hooked up right.
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"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
4 out of 5

It's decent

Written By Pete, Potter Valley, CA on Monday, July 17, 2006
I bought two of these with plans to mount them into the bottom of a coffee table I am building. It isn't yet complete.

Each subwoofer is mounted in a sealed .68 cubic foot box. I tested them with a 1978 Pioneer SX-1250 amplifier, with 200 watts RMS per channel. These subs sound good and add a lot of strong bass, but even in the small sealed boxes they can't handle half of the rated 200 watts. Perhaps if they were installed in a smaller box they could handle more power without bottoming out. Nevertheless, they do what they are supposed to do, are reasonably priced, and are well-made. But if you are looking for some serious thump, spend more money and get something a bit bigger.
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4 out of 5

What a surprise!

Written By Randy, Quakertown, PA on Monday, July 17, 2006
Crutchfield Customer Review (What's this?)
For the price, they sound as good or better than woofers normally in the $80-150 price range. Overall construction looks great, better than the photo on here makes them look. Sound quality is good for the price. Pretty efficient as the pair is being run off a low end Pioneer amp running 75-100W and it's as loud as we want to listen with some to spare. If you're looking at woofers under $200, this one is as good as any in that price range. I'd definetly buy these for $60/ea if I needed a decent working man's sub.
2 out of 2 people found this helpful
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For a more in-depth review and enhanced detailed information on the Directed Audio Xtreme 104SX, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_607X104SX/Directed-Audio-Xtreme-104SX.html ).