Automotive Passive OEM Empty Enclosures

Automotive Passive OEM Enclosure Collection

Custom-Fit Automotive OEM Subwoofer Enclosures for Select Vehicles

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.

57 products

  • A-Trend A608-10CPV : Dual 10" Ported Sub Box for Toyota Tundra Crew Max 2014-2019 A-Trend A608-10CPV : Dual 10" Ported Sub Box for Toyota Tundra Crew Max 2014-2019, side view.

    A-Trend A608-10CPV : Dual 10" Ported Sub Box, 2014-2019 Toyota Tundra (CrewMax)

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    Dual 10-Inch Vented Carpeted Subwoofer-Enclosure for Select 2014-2019 Toyota-Tundra CrewMax-Cab Pickups Dual 10" Ported for Toyota Tundra Crew Max 2014-2019 Behind Seat Application Premium Carpet Finish Mounting Depth: 3.75" Air Space: .88 Cubic Feet (per sub) Tuning Frequency: 36HZ Specifications Configuration: Dual Vented Finish: Charcoal Carpeted Width:47.24" Height:8.86" Depth:16.54" Max Mounting Depth:3.75" Gross VolumePer Sub:1.28 Net Volume Per Sub:0.88

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    $279.99

  • Last One! A-Trend A184-12CPA : Dual 12" Sealed Sub Box, 2014-2018 Silverado Sierra Crew Cab A-Trend A184-12CPA : Dual 12" Sealed Sub Box, 2014-2018 Silverado Sierra Crew Cab, specs.

    A-Trend A184-12CPA : Dual 12" Sealed Sub Box, 2014-2018 Silverado Sierra (Crew Cab)

    1 Available for pickup

    Dual 12-Inch Sealed Carpeted Subwoofer-Box With AMP Space for Select 2014-2018 Chevrolet-Silverado and GMC -Sierra Crew-Cab Pickups CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Accu-Tuned 12” Dual sealed subwoofer enclosure with designated amp room designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2014-2018 Chevrolet / GMC Silverado / Sierra Crew Cab to ensure an OEM fit without impeding the operation of the back seat. High-Grade MDF for Ultimate structural rigidity and no-flex construction. 0.85 Cubic Feet Net Volume internal air space per sub is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 6” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue around all internal joints after final assembly. Pneumatic Applied Brad Nails to pull tight and hold the MDF parts during the glue drying process and help assure a no-leak, no-rattle air chamber. Premium OEM Grade Carpeting for factory look and durability. Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:52.50" Height:4.50" Depth:14.75" Max Mounting Depth:6.50" Gross VolumePer Sub:2.50 Net Volume Per Sub:1.69 Installation Note: Installs under the rear seat with no further modifications required. Rear seat functionality is un-affected

    1 Available for pickup

    $279.99

  • A-Trend A184-10CPA : Dual 10" Sealed Sub Box, 2014-2018 Silverado Sierra Crew Cab A-Trend A184-10CPA : Dual 10" Sealed Sub Box, 2014-2018 Silverado Sierra Crew Cab, specs.

    A-Trend A184-10CPA : Dual 10" Sealed Sub Box, 2014-2018 Silverado Sierra (Crew Cab)

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    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure With AMP Space for Select 2014-2018 Chevrolet-Silverado and GMC-Sierra Crew-Cab Truck CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Accu-Tuned 10” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2014-2018 Chevrolet / GMC trucks to ensure an OEM fit without impeding the operation of the back seat. Will work with some 2018 Legacy model vehicles Mounting Depth For 10" subs = 6" Volume: .6 cu.ft per chamber Amp Space Area: 14" x 15" with box to floor clearance: 1.75" Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:52.50" Height:4.50" Depth:14.75" Max Mounting Depth:6.50" Gross VolumePer Sub:2.50 Net Volume Per Sub:1.69 Installation Note: Installs under the rear seat with no further modifications required. Rear seat functionality is un-affected

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    $279.99

  • A-Trend A602-12CP : Dual 12" Sealed Sub Box for Toyota Tundra Double Cab 2007-2018 A-Trend A602-12CP : Dual 12" Sealed Sub Box for Toyota Tundra Double Cab 2007-2018, specs.

    A-Trend A602-12CP : Dual 12" Sealed Sub Box, 2007-2018 Toyota Tundra (Double Cab)

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    Dual 12-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2018 Toyota-Tundra Double-Cab Trucks Accu-Tuned 12” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2007-2018 Double cab trucks to ensure an OEM fit without impeding the operation of the back seat. High-Grade MDF for Ultimate structural rigidity and no-flex construction. .83 Cubic Feet Net Volume internal air space (per sub) is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 4.375” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue around all internal joints after final assembly. Pneumatic Applied Brad Nails to pull tight and hold the MDF parts during the glue drying process and help assure a no-leak, no-rattle air chamber. Premium OEM Grade Carpeting for factory look and durability. Dimensions Sub Cut Out: 9.125”, Mounting Depth: 4.375”, Width: 50.25” Height: 7.875”, Depth: 22.375” Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:50.25" Height:5.13" Depth:22.38" Max Mounting Depth:4.50" Gross VolumePer Sub:4.23 Net Volume Per Sub:3.07

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    $264.99

  • A-Trend A602-10CP : Dual 10" Sealed Sub Box for Toyota Tundra Double Cab 2007-2018 A-Trend A602-10CP : Dual 10" Sealed Sub Box for Toyota Tundra Double Cab 2007-2018, specs.

    A-Trend A602-10CP : Dual 10" Sealed Sub Box, 2007-2018 Toyota Tundra (Double Cab)

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    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2018 Toyota-Tundra Double-Cab Trucks Accu-Tuned 10” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2007-2018 Double cab trucks to ensure an OEM fit without impeding the operation of the back seat. High-Grade MDF for Ultimate structural rigidity and no-flex construction. .83 Cubic Feet Net Volume internal air space (per sub) is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 4.375” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue around all internal joints after final assembly. Pneumatic Applied Brad Nails to pull tight and hold the MDF parts during the glue drying process and help assure a no-leak, no-rattle air chamber. Premium OEM Grade Carpeting for factory look and durability. Dimensions Sub Cut Out: 9.125”, Mounting Depth: 4.375”, Width: 50.25” Height: 7.875”, Depth: 22.375” Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:50.25" Height:5.13" Depth:22.38" Max Mounting Depth:4.50" Gross VolumePer Sub:4.23 Net Volume Per Sub:3.07

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    $264.99

  • A-Trend A622-10CP : Dual 10" Sealed Sub Box for Toyota Tacoma Double Cab 2005-2015

    A-Trend A622-10CP : Dual 10" Sealed Sub Box, 2005-2015 Toyota Tacoma (Double Cab)

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    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2005-2015 Toyota-Tacoma Double-Cab Pickups Designed Specifically For 2005-2015 Toyota Tacoma Double Cab Premium carpeted finish Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:48.50" Height:18.25" Depth:7.50" Max Mounting Depth:5.50" Gross VolumePer Sub:2.92 Net Volume Per Sub:2.01

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    $259.99

  • A-Trend A604-12CP : Dual 12" Sealed Sub Box for Toyota Tundra CrewMax 2007-2013 A-Trend A604-12CP : Dual 12" Sealed Sub Box for Toyota Tundra CrewMax 2007-2013, specs.

    A-Trend A604-12CP : Dual 12" Sealed Sub Box, 2007-2013 Toyota Tundra (CrewMax)

    Pre-Order Today!

    Dual 12-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2013 Toyota-Tundra CrewMax-Cab Pickups Designed specifically for 2007-2013 Toyota Tundra Crew Max Trucks Premium carpeted finish 3/4" Mounting Baffle Hardwood MDF construction Rounded edges Glued and Braced construction Subwoofer mounting depth: 5.25" Box volume: 1.0 cubic feet (per chamber) Behind rear seat installation Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:45.75" Height:16.37" Depth:7.00" Max Mounting Depth:5.00" Gross VolumePer Sub:2.60 Net Volume Per Sub:1.80

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    $259.99

  • A-Trend A604-10CP : Dual 10" Sealed Sub Box for Toyota Tundra CrewMax 2007-2013 A-Trend A604-10CP : Dual 10" Sealed Sub Box for Toyota Tundra CrewMax 2007-2013, specs.

    A-Trend A604-10CP : Dual 10" Sealed Sub Box, 2007-2013 Toyota Tundra (CrewMax)

    Pre-Order Today!

    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2013 Toyota-Tundra CrewMax-Cab Pickups Designed specifically for 2007-2013 Toyota Tundra Crew Max Trucks Premium carpeted finish 3/4" Mounting Baffle Hardwood MDF construction Rounded edges Glued and Braced construction Subwoofer mounting depth: 5.25" Box volume: 1.0 cubic feet (per chamber) Behind rear seat installation Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width:45.75" Height:16.37" Depth:7.00" Max Mounting Depth:5.00" Gross VolumePer Sub:2.60 Net Volume Per Sub:1.80

    Pre-Order Today!

    $259.99

  • A-Trend A168-12CPA : Dual 12" Sealed Sub Box, 2007-2013 Silverado Sierra Standard Cab A-Trend A168-12CPA : Dual 12" Sealed Sub Box, 2007-2013 Silverado Sierra Standard Cab, specs.

    A-Trend A168-12CPA : Dual 12" Sealed Sub Box, 2007-2013 Silverado Sierra (Standard Cab)

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    Dual 12-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2013 Chevrolet-Silverado or GMC-Sierra Regular-Cab Trucks CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Accu-Tuned 12” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2007 -2013 Chevrolet / GMC trucks to ensure an OEM fit without impeding the operation of the back seat and there is a designated area for mounting and amplifier to the enclosure. High-Grade MDF for Ultimate structural rigidity and no-flex construction. 0.7 Cubic Feet Net Volume internal air space per subwoofer is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 6.25” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue around all internal joints after final assembly. Pneumatic Applied Brad Nails to pull tight and hold the MDF parts during the glue drying process and help assure a no-leak, no-rattle air chamber. Premium OEM Grade Carpeting for factory look and durability. Dimensions Sub cut out: 11.125”, sub mounting depth: 6.25” Installation Note: Installs behind the seats. Tools on the hump must be removed to install. What's nice is that you will not have to take out your jack or cut off the bolt that holds your tool kit in place. The main limitation is depth. This truck seems to have less space behind the seats than the previous model, so speaker depth is somewhat limited. Check out the speaker depth guide before buying your subs. You will likely have to sacrifice the last 2-3 clicks on your seat travel to give the box and subs enough space. In most cases, this will still leave you with plenty of legroom to drive comfortably while enjoying your new boom. Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width: 52.00" Height: 14.89" Depth: 6.85" Max Mounting Depth: 6.25" Gross VolumePer Sub: 0.70 Net Volume Per Sub: 0.70

    Pre-Order Today!

    $259.99

  • A-Trend A168-10CPA : Dual 10" Sealed Sub Box, 2007-2013 Silverado Sierra Standard Cab A-Trend A168-10CPA : Dual 10" Sealed Sub Box, 2007-2013 Silverado Sierra Standard Cab, specs.

    A-Trend A168-10CPA : Dual 10" Sealed Sub Box, 2007-2013 Silverado Sierra (Standard Cab)

    Pre-Order Today!

    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2007-2013 Chevrolet-Silverado or GMC-Sierra Standard-Cab Pickups CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Accu-Tuned 10” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2007 -2013 Chevrolet / GMC trucks to ensure an OEM fit without impeding the operation of the back seat and there is a designated area for mounting and amplifier to the enclosure. High-Grade MDF for Ultimate structural rigidity and no-flex construction. 0.7 Cubic Feet Net Volume internal air space per subwoofer is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 6.25” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue around all internal joints after final assembly. Pneumatic Applied Brad Nails to pull tight and hold the MDF parts during the glue drying process and help assure a no-leak, no-rattle air chamber. Premium OEM Grade Carpeting for factory look and durability. Dimensions Sub cut out: 9.125”, sub mounting depth: 6.25” Installation Note: Installs behind the seats. Tools on the hump must be removed to install. You will not have to take out your jack or cut off the bolt that holds your tool kit in place. The main limitation is depth. This truck seems to have less space behind the seats than the previous model, so speaker depth is somewhat limited. Check out the speaker depth guide before buying your subs. You will likely have to sacrifice the last 2-3 clicks on your seat travel to give the box and subs enough space. In most cases, this will still leave you with plenty of legroom to drive comfortably while enjoying your new boom. Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width: 52.00" Height: 14.89" Depth: 6.85" Max Mounting Depth: 6.25" Gross VolumePer Sub: 0.70 Net Volume Per Sub: 0.70

    Pre-Order Today!

    $259.99

  • A-Trend A391-10CPV : Single 10" Vented Sub Box for F-250, 350, 450 Crew Cab 1999-2007

    A-Trend A391-10CPV : Single 10" Vented Sub Box for, 1999-2007 F-Series (SuperDuty Crew Cab)

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    Single 10-Inch Vented Carpeted Subwoofer-Enclosure for Select 1999-2007 Ford F-250, F-350 and F-450 Crew-Cab Pickups CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Designed specifically for 1999-2007 Ford F250/F350/F450 Crew Cab Trucks Premium carpeted finish 3/4" Mounting Baffle Hardwood MDF construction Rounded edges Glued and Braced construction Subwoofer mounting depth: 4.75" Box volume: 1.19 cubic feet (per chamber) Installation Note: Fits behind the rear seat, removal of jack kit is required along with rear seat belt cover and carpet. The power motor will need to be removed during installation Specifications Configuration: Single Vented Finish: Charcoal Carpeted Width:55.25" Height:16.13" Depth:6.13" Max Mounting Depth:5.50" Gross VolumePer Sub:2.46 Net Volume Per Sub:1.55 Installation Note: Fits behind the rear seat, removal of jack kit is required along with rear seat belt cover and carpet. The power motor will need to be removed during installation

    Pre-Order Today!

    $259.99

  • Last One! A-Trend A144-10CP : Dual 10" Sealed Sub Box, 2014-2019 Silverado Sierra Extended Cab A-Trend A144-10CP : Dual 10" Sealed Sub Box, 2014-2019 Silverado Sierra Extended Cab, specs.

    A-Trend A144-10CP : Dual 10" Sealed Sub Box, 2014-2019 Silverado Sierra (Extended Cab)

    1 Available for pickup

    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 2014-2019 Chevrolet-Silverado or GMC-Sierra Extended-Cab Trucks CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Custom downfire under rear seat Accu-Tuned 10” Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers. OEM-Fit is designed and engineered specifically for the 2014-2019 Chevrolet / GMC trucks to ensure an OEM fit without impeding the operation of the back seat. High-Grade MDF for Ultimate structural rigidity and no-flex construction. 2.42 Cubic Feet Net Volume internal air space(.93 per sub) is ideal for tight accurate bass reproduction. Subwoofer Mounting Depth is 7” which is ideal for lower profile subwoofers. Specially Formulated Aliphatic Wood Glue to ensure an airtight seal between all MDF parts with a second application of glue. Premium OEM Grade Carpeting for factory look and durability. Dimensions Sub cut out: 9.125”, mounting depth:7”, front height: 6.88”, rear height: 6.25”, width: 51.75”, front depth: 11.88”, rear depth: 13.25” Specifications Width 52.75 Height 6.875 Depth 11.875 Mounting Depth 5.25 Gross Cubic Feet Per Side 0.8 Net Cubic Feet Per Side 0.8 Excursion 3

    1 Available for pickup

    $254.99


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