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JL Audio Stealthbox®

Custom-fit fiberglass enclosure with 10" W3v3 subwoofer
Fits 2007-up Ford Expedition (EL version only)

Item #: 13694343

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4 Reviews | Ask Questions

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The JL Audio Stealthbox® custom-fit subwoofer delivers incredible bass in a package that takes up minimal space and blends in with your vehicle's interior. JL Audio designs Stealthboxes to fit in specific vehicles, then loads them with appropriate subwoofers for optimal performance. Pair the system with an appropriate amp and wiring for stellar, concealed bass.

Perfect sound to go with the perfect fit
JL Audio puts months of research and design into each Stealthbox® custom-fit subwoofer to ensure not only that it fits, but that it sounds better than any other custom enclosed system. First, JL Audio determines the ideal shape and mounting location for each enclosure, so that it looks like an original part of the vehicle it's designed for. Next, they mount each high-performance subwoofer so it delivers amazing firepower from within its unique enclosure, without sacrificing clarity or musical depth.

The fiberglass enclosure offers superior rigidity while allowing more interior volume, so the sub can turn out louder, deeper bass. JL Audio craftsmen then laminate, grind, join, and finish each Stealthbox® by hand. The end result: full-bodied, distortion-free bass from an impressively stealthy enclosure.

Enjoy enhanced, custom-fit sound
This Stealthbox® enclosure fits behind the driver side factory cargo area trim of 2007-up Ford Expedition EL (will not fit non-EL models). If a factory subwoofer is present, this enclosure replaces it. This Stealthbox® includes one W3v3 10" 2-ohm subwoofer from JL Audio. A black grille is included. Please check with us before purchasing by using the vehicle selector on our site, or calling a Sales Advisor at 1-888-955-6000 to verify fit information.

JL Audio has rated the difficulty of this Stealthbox® installation as moderate or high. Crutchfield recommends using a car audio professional to install this enclosure, unless you have extensive experience installing car audio gear.

Product Highlights:

  • Stealthbox® custom-fit subwoofer
  • sealed fiberglass enclosure
  • 10" 2-ohm W3v3 subwoofer
  • grille included
  • fits behind cargo area trim panel
  • power handling: 100-500 watts RMS (1,000 watts peak power)
  • warranty: 2 years
  • Our 60-day money-back guarantee

Vehicle-specific enclosures with subs? Say what?

Instead of the usual sub in a box, the manufacturer creates a molded enclosure that fits perfectly into a convenient spot in your specific vehicle, housing a high-quality sub. Some enclosures even include a built-in amp, for the ultimate in stealth bass. The advantages? You don't lose much space (if any), your sub is perfectly matched to its enclosure, and your enclosure has a factory look that won't tell potential thieves you have an awesome sound system. Doesn't get better than that.

JL Audio Stealthbox® Reviews

Average Customer Review:

4 Reviews

awesome punch..

Written by: Johnny M from Puerto Rico on December 13, 2015

Wow, i own a 2015 Ford Expedition Platinum and installed this JL Stealthbox with a 10 inch sub and paired to a MTX 250.1 and the sound is incredible. You think that you put a single 15 in your trunk. That's how loud this bass is. I didn't purschase this from Crutchfield, because in PR is a distributor although i purschase the amplifier from Crutchfield. Buy it, you wont be dissapointed. Johnny M

Pros: More punch that i expected This thing hits hard My 2015 Expedition Platinum isn't EL, and this Stealthbox fits nice, a little creative to place the DSP and the PLG but, it's okay

Cons: None

2007 Expedition (NON-EL)

Written by: BriceKin from South Bend, IN on May 14, 2013

I did not purchase this through Crutchfield but work for a JL dealer. I have a 07 non-EL SUV. I decided to give it a shot to see if this would fit without issue and it does. If you're looking for an alternative to the stock subwoofer in your non-EL truck, this one will fit despite their claims that it won't. It bolts right in, aside from a bracket modification I had to make, which consisted of drilling a new hole to make the box mount to the bracket. I did let them know of this issue and hopefully they fix it in further production units.

The only issue that I had with the fitment was the supplied grille. The EL side panel moves a hump in the panel further towards the front of the vehicle away from the subwoofer grille cut-out. I didn't like the way it would look once installed so I came up with another option.

I took the trim ring from the subwoofer, and a 10" grille, and was able to screw it into the 4 corner holes that were left over from the factory grille. Looks clean with a touch of custom and the third row folds up without hitting.

According to my research, this should also fit 03-06 models equipped with a factory subwoofer as other reviewers have noted.

Pros: Fits more vehicle than noted and gives good amount of bass that is out of the way.

Cons: Not loud enough for me, but that's a trade-off for being concerned with having space.

Awesome Product

Written by: Manuel from San Antonio, TX on April 6, 2012

2006 Ford Expedition
Crutchfield Customer Review (What's this?)

I bought this for my 2006 Expedition (it fits exactly in the space shown, even though I don't have an EL), also drilled one extra hole in top mounting bracket to mount. Easy installation -30 minutes like customer above says. Be sure to remember it is wired 2 Ohm already. Loving the sound and the fact that it is hdiden in my vehicle!




Written by: Reeko from Houston, TX on November 27, 2010

I bought this for my 2005 Expedition (even though crutchfield says it won't fit), It installed in about 30 mins. after slight modification of the top mounting bracket (had to drill new holes).
It sounds Awesome!, lots of bass out of just one 10". I love it!



Hands-on research

What's in the box?

Download owner's manual

  • Custom subwoofer box loaded with 10" woofer
  • Installation Guide
  • Warranty sheet

Product Research


Overview: JL Audio's Stealthbox subwoofer systems are designed to hide away in a specific vehicle. Please consult "Outfit My Car" to confirm compatibility with your vehicle.

Construction: Stealthboxes are hand-crafted from fiberglass and/or Advanced Molded Composite (AMC) materials. Fiberglass delivers a level of enclosure rigidity and dimensional stability not possible with other enclosure materials, allowing wall thickness to be reduced compared to a typical wood enclosure. This gives you more interior box volume for a given external volume. Fiberglass and AMC materials are very strong and can be molded into very complex shapes; giving JL Audio the ability to design your Stealthbox to fit perfectly into tight spots and minimize intrusion into your vehicle's useful space. Each Stealthbox is laminated, ground, joined, and finished by hand in the USA. Proprietary techniques and materials developed by JL Audio through years of fiberglass manufacturing experience ensure consistent quality and performance.

Woofer: One 10" JL Audio W3v3-2 subwoofer is loaded in this sealed enclosure and wired as a 2Ω load at the enclosure's 5-way post speaker terminal.

  • Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method aimed at improving dynamic motor behavior. As a result of DMA optimization, W3v3 motors remain linear in motor force over a very long range of excursion, and also maintain a highly stable fixed magnetic field in the gap over a wide power range. The result is vastly reduced distortion, faithfully reproduced transients, and tight, clean, articulate bass.
  • Floating Cone Attachment Method (FCAM): JL Audio's patented FCAM technology is an innovative method of bonding the surround/cone assembly to the voice coil/spider assembly. This assembly technique ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.
  • Vented Reinforcement Collar (VRC): The Vented Reinforcement Collar is a composite structure that addresses two issues related to reliability. By reinforcing the critical junction between the cone, voice coil and spider, the VRC greatly reduces failures due to glue breakdown or material weaknesses. It does this by greatly increasing adhesive contact area and providing stress relief to the spider material at excursion extremes. the VRC also feature slots that facilitate air flow directly onto the voice coil windings to reduce thermal compression effects and enhances reliability.
  • Spider/Lead Wire Assembly: The W3v3 features a unique spider, coil and terminal subassembly which is assembled prior to installation in the speaker frame for optimum alignment and glue-joint integrity. The spider is insert-molded into a composite carrier tray which also incorporates the terminal assembly and lead wire strain relief features for enhanced reliability and optimal alignment of parts. The flying lead wires are carefully controlled and strain-relieved without resorting to woven-in lead wires, which can degrade spider performance.
  • Elevated Frame Cooling: The elevated frame design of the W3v3 delivers high-velocity air flow through slots directly above the top plate to the voice coil of the speaker. This not only enhances power handling, but also sound quality by minimizing dynamic parameter shifts and power compression.
  • Surround Stress Relief: By creating a radiused feature on the edge of the cone, stress is relieved from the surround material at maximum forward excursion, resulting in longer life and more consistent surround behavior.

Our Product Research Team

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Fits 2007-up Ford Expedition (EL version only)