Driver already fitted

Loaded Subwoofer Boxes

Enclosures with the subwoofer mounted, wired and tested in Tullahoma, Tennessee.

Loaded Subwoofer Boxes - Audio Intensity

Driver already fitted

A loaded enclosure arrives with the subwoofer already mounted, wired and sealed against the baffle. It is not a build standard and not a tier: it is a way of buying, and it cuts across every series we make.

What it removes is the two things installers most often get wrong, the gasket seal and the coil wiring, plus the question of whether the driver and the cabinet were ever matched to each other in the first place.

Loaded enclosures in stock | driver mounted, wired and sealed at the bench | across Vehicle Specific, Micro, Performance and Professional builds

Cut, assembled and finished in Tullahoma, Tennessee, on ShopSabre routers from Langboard Elite MDF.

Net volume for a driver-matched cabinet is calculated from the parameters the driver manufacturer publishes for that model. Universal-cutout cabinets are cut to a standard cutout and a stated volume range instead.

Decision Shortcut

Find Your Match

Curated picks matched to common build goals

Best Loaded Value

Proline - X Sealed 10" Enclosure – Loaded with Prodigy Audio NB3 - Proline X Subwoofer Enclosures for car audio systems

Proline X

Proline-X Sealed 10" Enclosure – Loaded with Prodigy Audio NB3

Sealed 10 inch loaded with the Prodigy NB3. Strong motor, clean sealed alignment, the right entry point for a complete loaded system.

$ 299.99 $ 329.99

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Best Loaded for SQ

Image Dynamics IDMAX 12 Loaded Subwoofer Enclosure (Sealed)

Proline X

Proline-X Sealed 12" Enclosure – Loaded with Image Dynamics IDMAX 12

Sealed Professional Series 12 inch loaded with the Image Dynamics IDMAX 12. SQL-grade construction with the IDMAX as the reference SQ driver.

$ 799.99

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Best Loaded for Trucks

Proline - X Micro Series M10 - S WAV Loaded Wavtech thinPRO 10 Subwoofer + Sealed Enclosure - Proline X Enclosed Subwoofer for car audio systems

Proline X

Proline X Single 10" Sealed Micro Series System | Loaded with Wavtech thinPRO10

Compact sealed system loaded with the Wavtech thinPRO 10. 750W RMS in 2.9 inch mounting depth, purpose-built for behind-seat installs.

$ 849.99 $ 949.99

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Best Loaded Vehicle Specific

2024 - 2025 Ford F - 150 & F - 250 Direct Fit Ford Series Loaded Subwoofer Enclosure – Kicker CompRT 10

Proline X

2024-2026 Ford F-150 Behind-Seat Single 10" Enclosure – Loaded with Kicker CompRT 10

2024-2025 Ford F-150/F-250 behind-seat 10 inch system loaded with the Kicker CompRT. No enclosure design work, no fitment guesswork.

$ 699.99

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What Loaded Covers, by Series

Loaded cuts across the range rather than sitting inside it. The series still decides how the cabinet is built and what warranty it carries; loaded only decides whether the driver is already in it.

Every active loaded enclosure in stock, 29 August 2026.
Series it belongs toHow that cabinet is builtWhy it is loaded
Vehicle SpecificStack-fab with dowel reinforcement, cut to a named cabThe driver has to be fitted to hit the cab dimensions
Micro SeriesStack-fab, shallow-mount, ships with feetShallow pairings are the easiest to get wrong
Performance0.75 in single baffle, universal cutoutA complete entry-point system in one order
ProfessionalDouble or triple baffleThe pairing matters most where the driver is the point
Performance Optimized1.5 in double baffle, cut to one driverThe cabinet was already cut to that exact driver

Shared across every row: Langboard Elite MDF cut on ShopSabre routers in Tullahoma, Tennessee. Plush black carpet. A Proline X ABS and carbon fibre composite terminal cup with stainless hardware, pre-wired in 12-gauge OFC. Construction method varies by series and is stated on each product page.

Loaded Is a Buying Mode, Not a Tier

Every cabinet on this page belongs to one of the Proline X series in its own right, and it is built to that standard. Vehicle Specific direct-fit boxes, shallow-mount Micro cabinets, universal-cutout Performance builds and reference Professional builds all appear here, because any of them can leave the bench with the driver in it.

So the question this page answers is not how the cabinet is made. It is whether you want to source the subwoofer yourself. If you already own the driver, buy the bare cabinet from the series page instead and pay for the box alone.

How to Choose a Loaded Enclosure

Decide whether you actually want loaded

If you already own the driver, you do not. Buy the bare cabinet and keep the money. Loaded earns its keep when you are buying both halves anyway.

Start from the vehicle if there is one

The direct-fit builds do more narrowing than any other filter on this page, because they answer the fitment question outright.

Then the driver and the coil configuration

The listing names the subwoofer and states the coil options where there are any. That choice sets the impedance your amplifier has to be stable at.

Then check the series it belongs to

A loaded cabinet is still a Vehicle Specific, Micro, Performance, Professional or Performance Optimized build, and that tells you how it is made and what warranty it carries. The product page states which.

Budget for the amplifier separately

Loaded means the driver is fitted, not that the system is complete. There is no amplification built in.

Vehicle, Impedance, Then Everything Else

Check whether one is cut for your vehicle

Direct-fit cabinets are the largest group here, cut to a named cab and a specific year range rather than to a generic opening. They fit without trimming or losing seat travel. Platforms changed between generations, so read the year range on the listing rather than assuming.

Confirm the final impedance before you order

A loaded build ships wired. Where a listing offers a coil configuration, that choice sets the load your amplifier sees, and not every monoblock is stable at every load. Work it out before you commit rather than after the box arrives.

Then the space, as usual

Published external dimensions are on every listing, and a loaded cabinet is no smaller than its bare equivalent. Measure the opening with trim in place.

If You Already Own the Driver, Buy the Bare Cabinet

Loaded is worth paying for when you are buying the subwoofer and the enclosure together and want the pairing settled at our bench. It is not worth paying for twice. Every loaded build here has a bare equivalent on its series page, cut to exactly the same volume.

Still Passive, Still Needs an Amplifier

The driver arrives mounted, wired and sealed against the baffle. There is no amplification inside. Match a monoblock to the driver RMS at your final wired impedance, and confirm the amplifier is stable at that load before ordering.

Matched, Tested and Finished Before It Ships

The driver is fitted at our bench in Tullahoma, torqued against the gasket, wired to the terminal cup and checked before the cabinet is closed. The pairing is not left to chance either: a loaded build only exists where the cabinet was cut to that driver published parameters in the first place.

What it does not include is amplification. These are passive enclosures. For a single subwoofer a monoblock matched to your final wired impedance is the standard approach, and the impedance depends on the coil configuration you choose.

Direct fit

Cut to a named vehicle

The largest group

The largest group here. Cut to a specific cab and year range, so it fits without trimming or losing seat travel. On these the driver has to be fitted at the bench to hit the cab dimensions at all.

Check the year range

Shallow mount

Micro Series, loaded

Depth-constrained builds

Stack-fabricated shallow cabinets with the shallow driver already in them. These are the pairings easiest to get wrong when sourced separately.

2 year limited warranty

Complete system

Bought in one order

One order, one box

A cabinet and driver matched, wired and tested together, so the install is a mounting job and a power run rather than an assembly project.

Amplifier still required

Baffle thickness and construction method vary by series. Each product page states how that cabinet is built and, where it is driver-matched, which model it was cut for.

Categories

Keep Reading

Supporting guides to help you design, build, and tune your system.

Loaded Questions

What does a loaded subwoofer box include?

The enclosure with the subwoofer already mounted, wired and sealed against the baffle, finished and tested before it ships. It does not include an amplifier. These are passive enclosures, so you still need amplification matched to the driver RMS at your final wired impedance.

Is loaded a different quality of cabinet?

No. Loaded is a way of buying rather than a build standard. Every cabinet here belongs to one of the Proline X series and is built to that standard, with that series warranty. The product page states which series it is.

Should I buy loaded or bare?

Loaded if you are buying the driver and the cabinet together anyway, because it settles the gasket seal, the coil wiring and the pairing at our bench. Bare if you already own the driver, in which case buy from the series page and pay for the cabinet alone.

Do I still need to check the impedance?

Yes, and it is the thing most worth checking. A loaded build ships wired, and where a listing offers a coil configuration that choice sets the load your amplifier sees. Not every monoblock is stable at every load, so work it out before ordering.

Are the direct-fit loaded boxes vehicle specific?

The direct-fit ones are cut to a named cab and a specific year range rather than to a generic opening, so they fit without trimming or losing seat travel. Platforms changed between generations and the boxes do not interchange. Check the year range on the listing.

Can you load a cabinet you do not list loaded?

Often, yes. If you want a configuration we do not list as a loaded build, tell us the cabinet and the driver and we will tell you whether we can assemble it before it ships.

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Toyota Tacoma Subwoofer Enclosure (2015 - 2023) – Fits 10-inch Subwoofer

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2015 - 2023 Ford F150 Subwoofer Enclosure F - 250 Direct Fit Behind - Seat Subwoofer Enclosure Super Duty Model

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2024-2026 Ford F-150 behind-seat subwoofer enclosure, front view with the 10-inch cutout and terminal cup

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F-150 Behind Seat Single 10" (2024-2026) Behind-Seat Subwoofer Enclosure

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Proline X Performance P8-S Sealed Enclosure for 8-inch Subwoofers

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Proline X 6.5-inch ported subwoofer enclosure, front view with the driver cutout and slot port

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Last updated August 29, 2026