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Passive OEM Empty Subwoofer Enclosures

Passive OEM Empty Subwoofer Enclosure Collection

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.

3 products

  • A-Trend A162-10CP : Dual 10" Sealed Sub Box, 1999-2006 Silverado Sierra HD Crew Cab A-Trend A162-10CP : Dual 10" Sealed Sub Box, 1999-2006 Silverado Sierra HD Crew Cab, specs.

    A-Trend A162-10CP : Dual 10" Sealed Sub Box, 1999-2006 Silverado Sierra (HD Crew Cab)

    Pre-Order Today!

    Dual 10-Inch Sealed Carpeted Subwoofer-Enclosure for Select 1999-2006 Chevrolet-Silverado and GMC-Sierra HD-Crew -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 1999-2006 Chevrolet / GMC trucks to ensure an OEM fit with out impeding the operation of the back seat. High Grade MDF for Ultimate structural rigidity and no-flex construction. 1.5 Cubic Feet Net Volume internal air space (.75 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. Dimensions Sub cut out: 9.125”, mounting depth: 6”, front height: 7.875”, rear height: 5.5”, width: 43.625”, front depth: 13.125”, rear depth: 12.5”  Installation Note: Custom downfire fit under rear seat, enclosure will only fit heavy duty crew cabs (1500, 2500, 3500). Heavy duty crew cabs will have the jack located under the seat on the passenger side. Specifications Configuration: Dual Sealed Finish: Charcoal Carpeted Width: 43.63" Height: 5.50" Rear - 8.875" Front Depth: 12.50" Rear - 13.13" Front Max Mounting Depth: 6.00 Gross Volume Per Sub: 1.50 Net Volume Per Sub: 1.50

    Pre-Order Today!

    $239.99

  • A-Trend A181-12CPV : Single 12" Vented Sub Box, 2007-2020 Silverado Sierra Crew Cab A-Trend A181-12CPV : Single 12" Vented Sub Box, 2007-2020 Silverado Sierra Crew Cab, bottom side.

    A-Trend A181-12CPV : Single 12" Vented Sub Box, 2007-2020 Silverado Sierra (HD Crew Cab)

    Pre-Order Today!

    Single 12-Inch Vented Carpeted Subwoofer-Enclosure for Select 2007-2020 Chevrolet-Silverado or GMC-Sierra HD-Crew-Cab Trucks CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! Installation Note: Does not fit Xcab, New body style Silverado or GM Sierra CrewCabs. Custom down fire fit under the rear seat, the enclosure will only fit heavy-duty crew cabs (1500, 2500, 3500) Single 12" Vented Subwoofer Enclosure Designed specifically for 2007-2020 Chevrolet-GMC Silverado / Sierra Crew Cab Premium Carpet Finish Underseat Upfire No Modification is required Easy drop-in installation 5.5" Mounting depth Installation Note: Does not fit Xcab, New body style Silverado or GM Sierra CrewCabs. Custom down fire fit under the rear seat, the enclosure will only fit heavy-duty crew cabs (1500, 2500, 3500) Specifications Configuration: Single Vented Finish: Charcoal Carpeted Width: 28.88" Height: 4.50" Depth: 17.75" Max Mounting Depth: 6.50" Gross VolumePer Sub: 1.50 Net Volume Per Sub: .95

    Pre-Order Today!

    $174.99

  • A-Trend A181-10CPV : Single 10" Vented Sub Box, 2007-2020 Silverado Sierra Crew Cab A-Trend A181-10CPV : Single 10" Vented Sub Box, 2007-2020 Silverado Sierra Crew Cab, specs.

    A-Trend A181-10CPV : Single 10" Vented Sub Box, 2007-2020 Silverado Sierra (HD Crew Cab)

    Pre-Order Today!

    Single 10-Inch Vented Carpeted Subwoofer-Enclosure for Select 2007-2020 Chevrolet-Silverado or GMC-Sierra HD-Crew-Cab Trucks CLICK HERE TO VIEW SUBWOOFERS THAT FIT THIS BOX! New body style Silverado or GM Sierra CrewCabs. Custom downfire fit under rear seat, enclosure will only fit heavy duty crew cabs (1500, 2500, 3500). Single 10" Vented Subwoofer Enclosure Designed specifically for 2007-2020 Chevrolet-GMC Silverado / Sierra Crew Cab Premium Carpet Finish Underseat Upfire No Modification is required Easy drop-in installation 5.5" Mounting depth Installation Note: Does not fit Xcab, New body style Silverado, or GMC Sierra CrewCabs. Custom down fire fit under the rear seat, the enclosure will only fit heavy-duty crew cabs (1500, 2500, 3500) Specifications Width 28.875 Height 6.75 Depth 17.75 Vent Width 1.37 Vent Height 5 Vent Depth 10 Mounting Depth 6.5 Gross Cubic Feet Per Side 1 Net Cubic Feet Per Side 0.83 HZ 39 Excursion 1.875

    Pre-Order Today!

    $174.99

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