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JL Audio SB-T-CROLA/12W3v3

Stealthbox for 2009-2013 Toyota Corolla

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JL Audio SB-T-CROLA/12W3v3

Stealthbox for 2009-2013 Toyota Corolla


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High-Performance NVX Speaker Wire

25 ft. of True Spec 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)


20 ft. of NVX SDTK20 Trunk Kit

Keep your trunk from rattling and improve bass quality by using a sound dampening trunk kit.



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Subwoofer Features:

  • One JL Audio 12W3v3-2 Subwoofer
  • Power Handling:
    • RMS: 500 watts
  • Recommended power range: 150 - 500 watts RMS
  • Wired to a 2 ohm load
  • Mineral-filled polypropylene cone woofer
  • Nitrile-butadiene rubber surround
  • DMA-optimized, long linear excursion capability to virtually eliminate distortion and increase sound output
  • Vented reinforcement collar improves rigidity and stability of the cone, spider, and voice coil
  • Spider and lead wire assembly
  • Elevated frame cooling enhances power and sound quality
  • Floating Cone Attach Method allow the cone and surround to be aligned independently
  • Xmax: 13.0 mm
  • Sensitivity: 87.15 dB
  • Matching Amplifier: JL Audio JX500/1D
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Enclosure Features:

  • For 2009-2013 Toyota Corolla
  • Side-firing design
  • Sealed fiberglass enclosure
  • Steel mesh woofer grille is included
  • Stealthbox® installs neatly into the driver side rear corner of the trunk
  • Binding post terminals for secure and sturdy connection and installation
  • Optional Toyota Cargo Tray and Cargo Net will not fit with Stealthbox® installed
  • During installation, a slit must be cut in the trunk floor carpet to allow the trunk floor carpet to be lifted for spare tire access
  • OEM Color: Trunk liner
  • Color Match Grade: Excellent

Color Matching your Stealthbox®:

Some JL Audio Stealthboxes are not designed to perfectly match OEM colors. Some colors will contrast with OEM colors in order to provide a stylish setup. If you are looking for the closest color match, please select the JL Audio Stealthbox® color that is as close to your OEM color as possible and indicate your vehicle's interior color when ordering

Carpet Color Grade Identification
Perfect Actual exact factory color and texture (dye lot may differ slightly)
Excellent Precise color match, different texture
Good Very close to factory shade/tone
Fair Same basic color, different shade/tone
Poor Same basic color, substantially different shade/tone
Contrasts Not intended to match any factory color. Usually black. Good choice if no Good or better color match exists

Message from JL Audio: Our goal is to provide all Stealthbox® products in colors that match well with factory interiors. Because of availability issues with carpet colors, some Stealthbox® colors are not precise matches at this time. The match grades above give you an indication of how precise our color match is for each Stealthbox® model.

Check out the JL Audio SB-T-CROLA/12W3v3 Owner's Manual

Enclosure Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Subwoofer Cutout Shape
This is the shape of the enclosures cutout hole and defines the style of subwoofer that can be installed.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Vehicle Specific
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
Box Volume (Each Chamber)
This is the total air space inside each chamber of the empty subwoofer enclosure. By matching this value with the recommended air space of the subwoofer, you will be able to know if the subwoofer will match this box.
Number of Terminals
The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.
Terminal Type
Spring clip terminals work best with bare wire connections with small-gauge speaker wire, or pin-type connectors.

Binding post terminals are a sturdier, more versatile type of speaker terminal. Because binding post terminals are are threaded, you can tighten them down against the wire or connector for a tight, clean connection. The most popular style of binding post terminals is known as a "5-way binding post". This type can accept bare wire, or any of the common speaker wire connectors. Binding posts with the option to be used with banana clips are even more versatile

Spring posts are a hybrid of the two. Instead of using a thread and "screwing" them tight, they use a spring to allow the wire to fit and tighten against the terminal.

Binding posts
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Tuning Frequency
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Toyota Corolla

Port Details

Number of Ports
The number of ports the enclosure has.
Tuning Frequency
Port Diameter
The outside diameter of the port. Check the product's owner's manual for the recommended port diameter for your sub.
Port Length
The length of the included port tubes. Many tubes are cardboard and may be cut to the length recommended by the sub's manufacturer. Check your product's owner's manual for the recommended port length for your sub.

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

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Accessory Tools and Products

Accessories added

High-Performance NVX Speaker Wire

25 ft. of True Spec 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

Your Price $39.99

Belva CCA Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

20 ft. of NVX SDTK20 Trunk Kit

Keep your trunk from rattling and improve bass quality by using a sound dampening trunk kit.

Your Price $53.99

NVX SDBP40 - 40 ft. (10% More Than Competition)

40 ft. Bulk Pack of Sound Dampening Material

Your Price $97.99

20 ft. of Dynamat Xtreme Trunk Kit

Keep your trunk from rattling and improve bass quality by using a sound dampening trunk kit.

Your Price $97.97

NVX SDRLR1 Universal Roller Tool

Install your sound damping with the SDRLR1 tool

Your Price $7.99

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JL Audio SB-T-CROLA/12W3v3

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