Subwoofer Enclosures Loaded Custom Fit

Passive OEM Loaded Subwoofer Enclosure Collection

Passive OEM Style Custom-Fit Loaded Subwoofer-Enclosures

Loaded subwoofer enclosures come in Passive or Active styles. Passive enclosures, or boxes, require an additional amplifier to produce sound while Active enclosures have amplifiers built into them and are self contained all-in-one systems.

Subwoofer drivers, also know as subs, are specific only to the lowest frequencies of the sound spectrum, and are the largest drivers in any car stereo. They are generally found in sizes of 8″ – 12″ diameters. Subs move massive amounts of air creating large pressure waves. These large pressure waves give that bottom end punch you expect from your kick drum, the undeniable funk of a bass guitar and the earthshaking bump of a house beat. 

The frequency range of a subwoofer generally covers the first 2 octaves of the sound spectrum, also known as the lows. Subwoofers require their own mounting structure called a sub box. Sub boxes are built to create negative pressure on the sub to help move their large diameter cones back and forth for accurate reproduction of low end frequencies. Custom subwoofer boxes are built to meet certain cubic air space specifications of sub drivers and are sometimes custom built to fit under seats or other hidden areas to maximize the use of space in the vehicle. JL Audio’s Stealthbox's are custom designed to fit many vehicles while minimizing the footprint needed to be installed in your car.

RMS vs. MAX power: The RMS rating of any speaker driver is the continuous power rating that the speaker is designed to withstand at a maximum continued volume rating. The RMS rating is the only number to go by when pairing your speakers with an amplifier. As an example a speaker with a 100Watt, or 100W for short, RMS rating and a 300-Watt Max rating is ultimately a 100 Watt speaker. The Max rating is the temporary spikes in voltage that the speaker can handle. A 100-Watt RMS / 300-Watt Max speaker is going to outperform a 100W RMS / 250W Max speaker at higher volumes, but may not be the more detailed reference speaker.

Ohms: The Ohm rating, or resistance rating, of a speaker is an essential part of a well balanced car stereo system. Many JBL factory speaker systems have 2ohm drivers. Most aftermarket speakers are 4ohm drivers. Replacing these types of factory speakers may require a wiring bypass of the factory amplifier.

Driver resistance ratings are essential when pairing subwoofer and speaker drivers with amplifiers. An amplifier that is 750W @ 2ohms might only generally be 500W or less @ 4ohms. When purchasing a subwoofer driver the correct pairing of a subwoofer’s RMS wattage and Ohm ratings with an amplifier’s output power rating is absolutely essential.

Frequency Response: Frequencies are measured in Hertz or Hz for short. The frequency response of speaker drivers will generally fall between 20Hz and 22kHz. At 20Hz the sound spectrum begins. Every time you double your frequency you move up one octave in scale. 20-Hertz to 40-Hertz covers the first Octave, 40Hz to 80Hz covers the next octave and so on. Subwoofer drivers are generally tuned to crossover at 80 Hertz. This can depend on the subwoofer type and the type of music you listen to.

4 products

  • JL Audio SB-F-SUPRCNSL/10W3v3 : 10" 500W Subwoofer Enclosure @ 2Ω, 1998-2007 (SuperDuty F-Series) Excursion JL Audio SB-F-SUPRCNSL/10W3v3 : 10" 500W Subwoofer Enclosure, shown installed.

    JL Audio SB-F-SUPRCNSL/10W3v3 : 10" 500W Subwoofer Enclosure @ 2Ω, 1998-2007 Ford SuperDuty, Excursion (Front Bucket-Seats)

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    Single 500-Watt 2-Ohm 10-Inch Subwoofer-Enclosure for Select 1998-2007 Ford-Excursion and F-Series SuperDuty Trucks with Front Bucket-Seats If you drive Ford's biggest SUV or if your SuperDuty truck is equipped with bucket seats and a center console, this Stealthbox® model is right up your alley. Without infringing on people space and without being visible, it will fill your interior with rich, deep bass. This compact unit installs inside the factory center console. The cup holders remain unaffected and some console storage is retained. A powerful JL Audio 10-inch subwoofer driver fires down into the floor for intense up-front bass presence. The Hard Data: Contains one 10W3v3-2 in a sealed enclosure. 500 watt power handling. Wired for 2 ohm mono. Stealthbox® installs inside factory center console and fires down on the floor. Cupholders are not affected. For installation into front console only. Console storage is reduced. The factory console is not supplied with the Stealthbox®. After installation, the factory console is raised approximately 1.5 inches above the floor. Will not fit in SuperDuty trucks with bench seats. Will not fit consoles with rear cup holders and rear audio controls. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-F-SUPRCNSL/10W3v3 Installation Manual

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    $1,099.99

  • JL SB-D-QDRAM/10W3v3 : Single 10" 500W Sub Box for Ram 1500 Crew Cab 2009-2018 JL SB-D-QDRAM/10W3v3 : Single 10" 500W Sub Box for Ram 1500 Crew Cab 2009-2018, installed.

    JL Audio SB-D-QDRAM/10W3v3 : 10" 500W Subwoofer Enclosure @ 2Ω, 2002-UP Ram (Quad Cab)

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    Single 10-Inch 500-Watt 2-Ohm Carpeted Fiberglass Subwoofer-Enclosure for Select 2002-2018 Dodge Ram 1500 Quad Cab, 2003-Up 2500 & 3500 Quad Cab & 2009-2018 1500 Crew Cab & 2009-Up 2500 & 3500 Crew Cab Trucks Dodge's big hauler combines large sedan passenger comfort with tough pickup truck capabilities. JL's Stealthbox® for the Quad Cab tucks under the rear seat on the passenger side and encloses a 10-inch driver for impressive sub-bass performance. Seat folding is unaffected and plenty of room is left on the driver side for amplifier installation or storage. Best of all, the Stealthbox® is essentially invisible once installed. The Hard Data: Contains one 10W3v3-2 in a sealed enclosure. 500 watt power handling. Wired for 2 ohm mono. Installs under passenger side rear-bench seat. The seat folding function remains unaffected. Cup holders are not affected. Some models require removal of the passenger side metal floor extension located under the rear seat. Some models may require cutting and removal of the underseat carpet and/or carpet padding. Will not fit Mega Cab. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-D-QDRAM/10W3v3 Installation Manual

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    $1,099.99

  • JL Audio SB-J-GCHWK2/10W3v3/BK : 10" 500W 2Ω Subwoofer Enclosure, 2011-2021 Jeep Grand Cherokee JL Audio SB-J-GCHWK2/10W3v3/BK : 10" 500W 2Ω Subwoofer Enclosure, 2011-2021 Jeep Grand Cherokee, show installed.

    JL Audio SB-J-GCHWK2/10W3v3/BK : 10" 500W 2Ω Subwoofer Enclosure, 2011-2021 Jeep Grand Cherokee

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    10-Inch 2-Ohm 500-Watt Subwoofer Enclosure for Select 2011-2021 Jeep Grand-Cherokee with Black or Light-Frost Interior The Grand Cherokee's pedigree for off-road prowess, comfort and everyday utility is well-represented by this generation of the venerable nameplate. We know that Jeep owners value the “go-anywhere, do-anything” capabilities of their vehicles. A bulky subwoofer enclosure that takes up valuable cargo space is not part of that experience, so JL Audio was pleased to present this beautiful Stealthbox® solution for the Jeep Grand Cherokee owner seeking great audio performance. The Stealthbox® replaces the OEM “subwoofer” with a sealed enclosure housing a potent 10-inch JL Audio subwoofer driver. The enclosure installs in the passenger side rear corner of the cargo area without interfering with under-floor storage or cargo tie-down fixtures, while the included steel mesh grille keeps the driver safe from cargo-related mishaps. The Hard Data: Contains one 10W3v3-2 subwoofer in a sealed enclosure. 500 watt power handling. Wired for 2 ohm mono. Black steel mesh woofer grille is included. Installs into passenger-side rear cargo panel and requires removal of factory “subwoofer”, if so equipped. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-J-GCHWK2/10W3v3 Installation Manual

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    $1,099.99

  • JL SB-D-CHLGR/12W3v3 : Single 12" 500W Sub Box for Dodge Challenger 2009-UP JL SB-D-CHLGR/12W3v3 : Single 12" 500W Sub Box for Dodge Challenger 2009-UP, installed.

    JL Audio SB-D-CHLGR/12W3v3 : 12" 500W Subwoofer Enclosure @ 2Ω, 2009-UP Dodge Challenger

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    Single 12-Inch 2-Ohm 500-Watt Subwoofer-Enclosure for Select 2009-UP Dodge-Challenger This reborn American legend just might be the most faithful interpretation of the classic “muscle car” formula to date. It has it all... raw power, aggressive looks, a comfortable interior... but, it certainly could use a serious audio system upgrade to erase the wimpy performance of the factory system. JL's Stealthbox® for the Challenger is the perfect product to begin your audio transformation. It installs neatly into the driver-side corner of the trunk with minimal impact on usable cargo area. Spectacular sound quality and impressive output are delivered by a high-performance JL Audio 12-inch subwoofer in a sealed enclosure precisely matched to the Challenger's acoustics by our engineering team. Great audio in your Challenger begins here. The Hard Data: Contains one 12W3v3-2 subwoofer in a sealed enclosure. 500 watt power handling. Wired for 2 ohm mono. Installs against driver-side wheel well. Stealthbox® includes a steel-mesh grille to protect the driver. Access to the spare tire, jack and tools remains unaffected. Installation requires removal of factory-installed ‘subwoofer' if vehicle is equipped with ‘Kicker® SRT® Audio Package'. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-D-CHLGR/12W3v3 Installation Manual

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    $1,099.99

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