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 2007-up Chevrolet Silverado and GMC Sierra crew cab trucks. It installs under the rear seat on the driver's side. This Stealthbox® includes two 10" 4-ohm W3v3-4 subwoofers from JL Audio, wired for 2-ohm mono impedance. 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 to 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 subwoofers
  • sealed fiberglass enclosure
  • two 10" W3v3-4 subwoofers wired for 2-ohms
  • installs under the rear seat on the driver's side
  • power handling: 1000 watts RMS
  • 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.

Hands-on research

What's in the box?

Download owner's manual

  • Custom subwoofer box with two loaded 10" woofers
  • 2 Socket-cup set-screws
  • 2 Lock washers
  • 2 Flat washers
  • 4 Fender washers
  • 2 Hex-nuts
  • 2 Wax squares
  • Installation Guide
  • Warranty sheet

Product Research

Features

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: Two 10" JL Audio W3v3-4 subwoofers are 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

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.

JL Audio Stealthbox® Reviews

Average Customer Review:

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much more than I expected!

Written By Anonymous, nw Ohio on Monday, June 02, 2014

Crutchfield Customer Review (What's this?)

These speakers are absolutely amazing! These two little 10's in this box far exceeded all expectations. They more than fill the crew cab of our truck with great clear hard hitting base. Completely blew our minds for two little 10's.

Great Sound

Written By carlos, California on Tuesday, March 04, 2014

Crutchfield Customer Review (What's this?)

Paired this with a 1000w JL amp. Awesome clean powerful sound. I am more than happy.

Pros: Clean and small enclosure leaves room under the passenger side seat.

Excellent product. JL Audio customer support is incredible.

Written By eodtommy, Lawton, OK on Thursday, February 19, 2009

Crutchfield Customer Review (What's this?)

I recently installed this in my 2008 2500HD Crewcab. The socket head screw on the left or outboard side was right next to a cab reinforcement rib under the cab; making it impossible to install the fender washer without modifications to the support. I recommended to JL Audio that moving this screw to the right or inboard would alleviate this condition. Within two days JL Audio responded and confirmed that the change will be made to
correct this situation. My commendations to JL Audio for outstanding customer support and incredible products. I use the JL recommended 500/1v2 amp and the sound is wonderful. This entire enclosure and the subs are American-Made products also.

JL Audio Stealthbox®

Written By derek, Idaho on Saturday, May 24, 2008

Crutchfield Customer Review (What's this?)

The sound quality on this box is rediclous I have never heard two tens sound so good ! this seems a little expensive until you consider a custom box and subs to fit under the seat would cost you at least this much and no promise that they would sound good JL did there job and did it well

Get everything you’ll need to enjoy your new JL Audio Stealthbox®

You'll need speaker wire to get the signal from your amp to your sub.
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We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Jeff  Jan 30, 2014 ]  Staff