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.

2 products

  • JL Audio SB-T-TUNDCMAX/13TW5v2 : 13" 600W 4Ω Thin Subwoofer Enclosure, 2007-2013 Toyota Tundra CrewMax JL Audio SB-T-TUNDCMAX/13TW5v2 : 13" 600W 4Ω Thin Subwoofer Enclosure, shown installed.

    JL Audio SB-T-TUNDCMAX/13TW5v2 : 13" 600W 4Ω Thin Subwoofer Enclosure, 2007-2013 Toyota Tundra (CrewMax)

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    Single 13-Inch 600-Watt 4-Ohm Thin Subwoofer-Enclosure for Select 2007-2013 Toyota Tundra-CrewMax Pickups Toyota's largest truck offers amazing people space, but doesn't leave much for a traditional subwoofer enclosure. It's a good thing JL Didn't let conventional thinking get in the way of creating Stealthbox® solutions. Using the remarkable 13TW5v2 thin-line subwoofer, JL Audio have created a powerful Stealthbox® that can be installed behind the back seat of the big Tundra. One is enough for creating outstanding sub-bass with deep extension and solid impact, but for those looking for maximum performance, installing a pair of them will deliver up to 6dB more output. The Hard Data: Contains one 13TW5v2-4 subwoofer in a sealed enclosure. 600 watt power handling. Wired for 4 ohm mono. Installs behind the rear bench. One notch of seat travel is lost with installation and full-recline of the seat-back is only available when the seat is in its more forward positions. If the vehicle is equipped with the factory JBL® subwoofer, you must do one of the following to install the Stealthbox®: A) Permanently modify (cut) the factory trim panel.  B) Obtain a replacement “no-subwoofer” trim panel from Toyota Parts prior to installation. Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-T-TUNDCMAX/13TW5v2 Installation Manual

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    $1,399.99

  • JL Audio SB-F-SUPRCC/13TW5v2 : 13" Thin 600W Subwoofer Enclosure @ 2Ω, 2010-2016 F-Series SuperDuty Crew Cab JL Audio SB-F-SUPRCC/13TW5v2 : 13" Thin 600W Subwoofer Enclosure, shown installed.

    JL Audio SB-F-SUPRCC/13TW5v2 : 13" Thin 600W Subwoofer Enclosure @ 2Ω, 2004-2016 F-Series SuperDuty (Crew Cab)

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    Single 600-Watt 2-Ohm Thin 13-Inch Subwoofer-Enclosure for Select 2004-2016 Ford SuperDuty Crew-Cab Trucks with FlexFold 60/40 Split-Bench Rear-Seat Ford's big trucks were designed to haul people and serious payloads with ease. They also present a tough challenge for a conventional subwoofer solution due to a severe shortage of unused space in the cab. It's a good thing JL didn't let convention get in the way of creating outstanding sub-bass. JL Audio now offers two clever Stealthbox® solutions for Ford's biggest hauler: one that installs inside the center console and this one: a super-thin, all fiberglass enclosure loaded with JL's revolutionary 13TW5v2 subwoofer and designed to install under the rear bench seat. So, if your console space is non-negotiable, you can still get world-class sub-bass that remains invisible and doesn't compromise your truck's people space. Whether your miles pile up towing a boat or using your truck for work, you can now enjoy every one of them with one of our Stealthbox® solutions. The Hard Data: Contains one 13TW5v2-2 subwoofer in a sealed enclosure. 600 watt power handling. Wired for 2 ohm mono. Installs under driver side of rear bench seat. Does not affect folding or reclining of seat. Please Note: “Black (leather)”, as indicated in the chart below is the OEM color/material. The Stealthbox® model that matches that OEM color is carpeted Stealthbox® products are built to order and generally ship within 5-6 business days of receiving your order. JL Audio SB-F-SUPRCC/13TW5v2 Installation Manual

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    $1,399.99

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