Loaded Series · Datasheet

2015-2023 Ford F-150/F-250 Behind-Seat Single 10" Enclosure – Loaded with JL Audio 10TW3 Single 10" Sealed enclosure

Net volume
0.50 ft³, JL Audio's published target
Tuning
N/A: Sealed
Max mounting depth
3.25"
Cutout
9-1/16"
Buy at Audio IntensityFactory-direct, ships from Tullahoma
  • Best For: 2015 to 2023 F-150 and 2017 to 2023 F-250 behind seat
  • Configuration: Single 10" Sealed, Vehicle Specific, loaded
  • Volume: 0.50 ft³ Net, JL Audio's published target
  • Tuning: N/A, Sealed
  • Sonic Character: Accurate, controlled, front stage friendly

Spec of record

Technical specifications

EnclosureProline X Vehicle Specific, direct fit behind seat
Fits2015 to 2023 Ford F-150, 2017 to 2023 Ford F-250
DriverJL Audio 10TW3-D4, pre-installed
Voice CoilDual 4 ohm, wired to 2 ohm
Enclosure TypeSealed
Net Internal Volume0.50 ft³, JL Audio's published target
Tuning FrequencyN/A: Sealed
MaterialLangboard Elite MDF, 3/4" (18mm)
Subwoofer Cutout9-1/16"
Driver Mounting Depth3.25"
Terminal CupProline X ABS/Carbon Fiber, recessed mount, stainless hardware, copper ring terminals
WiringPre-wired 12g OFC speaker wire
PolyfillInstalled
FinishAutomotive carpet
BuiltTullahoma, Tennessee

Modelled response

Performance in this enclosure

Net airspace
0.50
cu ft per chamber
System Qtc
0.96
sealed
Half power
40.1
Hz · F3
Xmax at
677
W RMS · no filter
With 25 Hz subsonic
713
W RMS · +5%
Amplifier
200–400
W RMS recommended
This enclosure holds 0.50 cu ft net per chamber. In it the JL Audio 10TW3-D4 runs a system Qtc of 0.96 with half power at 40.1 Hz, and the cone reaches its 15.2 mm travel limit at 677 W, above the driver’s 400 W thermal rating, so heat stops you before travel does. Run a subsonic filter at 25 Hz and that becomes 713 W — +36 W, or 5 percent more power for the same 15.2 mm of travel.

01Is it a sealed driver?

Efficiency bandwidth product places the motor before anything else is decided.

EBP = Fs ÷ Qes = 48.9
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 D4 48.9
D4 · EBP 48.9
EBP under 50 means a motor that wants a sealed load. The 10TW3-D4 sits at 48.9, inside that band, which is why this is a sealed build rather than a ported one.

02What the box does to it

0.50 cu ft against a 19.8 L Vas.

α = Vas ÷ Vb = 1.40  ·  Fc = Fs√(α+1) = 50 Hz  ·  Qtc = 0.96
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
D4 · Qtc 0.96, Fc 50 Hz, F3 40.1 Hz
The box lifts resonance from 32.3 Hz free-air to 50 Hz and half power lands at 40.1 Hz, anechoic, before any cabin gain.

03The watts that reach Xmax (in this enclosure)

Travel scales with the square root of power, so there is one wattage that puts the cone exactly on 15.2 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

PXmax = 677 W unfiltered  →  713 W with a 25 Hz subsonic
20 30 50 70 100 150 200 0 4 8 12 16 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 15.2 mm 677 W reaches Xmax here
D4 · 677 W, no filterD4 · 713 W with subsonic at 25 Hz, 24 dB/octXmax 15.2 mm one-way
Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 15.2 mm. Unfiltered that is 677 W, reached first at 34 Hz. It sits above the 400 W the driver can take thermally, so the voice coil gives up before the suspension does. The dashed traces are the same driver behind a subsonic filter at 25 Hz, 24 dB/oct: stopping the cone wasting travel below the passband lets it take 713 W before hitting the same 15.2 mm. That is 5 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs32.30Hzfree-air resonance
Qts0.620D4
Vas19.80Lequivalent compliance
Sd365.0cm²effective piston area
Xmax15.2mmone-way linear travel
Pe400Wcontinuous RMS
SPL81.9dB1 W / 1 m, derived from T/S

Driver parameters as published by loudspeakerdatabase.com. Curves computed against this enclosure’s actual net airspace.

From the shop floor

Installer's take

Check your year first. This fits the 2015 to 2023 F-150 and the 2017 to 2023 F-250. Ford changed the platform for 2024 and the boxes do not interchange, so a 2024 truck needs the other build. It is the most common ordering mistake on this line and it costs return shipping both ways.

Plan the amplifier location before you set the box. The enclosure fills the behind seat space by design, which is exactly where most people were intending to put the amp. A compact Class D monoblock will usually go under a front seat or against the rear wall beside the enclosure, but decide that first rather than discovering it with the box already seated.

The driver arrives wired to 2 ohms at the terminal cup, so your only electrical work is the run from the amplifier. Route and test power and signal before final placement, because lifting the box back out to fish a wire is not a two minute job once it is in.

How it's built

Construction

Precision Fit for Ford F-Series Trucks

Precision Fit for Ford F-Series Trucks

Tailored Compatibility

The enclosure is designed specifically for Ford F-150 from 2015 to 2023 and Super Duty trucks from 2017-2023. Additional modifications to the truck are needed for it to fit 2024. Call for details. It provides a custom fit behind the seat, ensuring no modifications are needed and guaranteeing a seamless installation experience.

Seamless Integration

The subwoofer enclosure integrates effortlessly into your truck without interfering with any factory components. It allows for clean audio system upgrades while maintaining the truck’s factory finish.

Efficient Use of Space

This enclosure fits behind the rear seat, allowing the driver to maximize the cab's space without compromising audio performance or utility.

Optimal Sound Performance

Optimal Sound Performance

Enhanced Bass Response

The enclosure's sealed design optimizes the bass output, delivering rich, deep sound. This design ensures that you can enjoy enhanced audio performance without sacrificing clarity.

Vibration Minimization

The structure is crafted to minimize vibrations often occurring with standard subwoofer enclosures. This ensures smooth, clean sound even at high volumes.

Sound Quality Retention

This enclosure is engineered to retain sound quality even when space is limited, offering powerful audio output that complements both factory and aftermarket audio systems.

Maintains Under-Seat Storage Access

Maintains Under-Seat Storage Access

Practical Design

The enclosure is engineered to maintain access to the under-seat storage in your truck. This makes it ideal for users who need to preserve storage options while enhancing their audio experience.

Convenient Setup

Installation does not interfere with the truck’s seat functions, allowing easy access to under-seat compartments. This design feature maximizes usability for drivers who require frequent storage access.

Versatility

The enclosure’s compatibility with various storage setups makes it a versatile option for Ford truck owners who prioritize space and sound quality.

Compatible with Multiple 10" Woofers

Compatible with Multiple 10" Woofers

Flexible Subwoofer Choices

The enclosure is compatible with several 10-inch subwoofer models, giving users flexibility in their audio setup. It offers versatility for various subwoofer preferences without compromising performance.

Designed for Performance

The enclosure is built to handle high-output subwoofers, allowing users to push their audio system to its limits. This makes it a strong contender for users seeking superior bass performance.

Perfect Balance of Size and Power

Despite its compact form, the enclosure can house subwoofers that deliver substantial power. This design feature ensures a balance between space efficiency and sound output.

Before you order

Questions

Which trucks does this fit?

The 2015 to 2023 Ford F-150 and the 2017 to 2023 Ford F-250. Ford changed the platform for 2024 and the enclosures are not interchangeable, so a 2024 or later truck needs our 2024 to 2026 build instead. Check your model year before ordering. It is the most common mistake on this line.

Do I lose seat travel or storage?

No. The enclosure is cut for this specific cab rather than adapted to it, so it sits behind the rear bench without fouling the seat or the factory under seat storage. That is the whole reason a vehicle specific build exists. A universal box in the same space either does not fit or costs you something.

Do I need an amplifier, and how much power?

Yes. This is a passive enclosure with no amplification built in. The driver ships wired to 2 ohms at the terminal cup, so target 300 to 400 watts RMS at 2 ohms from a Class D monoblock. The 10TW3-D4 is rated at 400 watts RMS. If you are keeping the factory head unit you will also need a line output converter or a DSP with speaker level inputs.

What makes the 10TW3 different from other shallow subs?

Most shallow mount drivers get their form factor by shrinking the motor and accepting less excursion. JL Audio's concentric tube architecture puts the voice coil beneath the dust cap and moves the motor structure forward instead, which gives a 3.25 inch mounting depth while keeping 15.2mm of one-way Xmax. That combination does not exist in a conventional shallow driver.

Why only 0.50 cubic feet?

Because that is JL Audio's published sealed target for this driver. It is the alignment the 10TW3-D4 was engineered around rather than a compromise made to fit a truck. It also suits the cab: a truck cab is small, sealed and heavily reinforced, so cabin gain below 80 Hz is unusually strong and a tighter box gives you control while the cab supplies the low end.

Where do I put the amplifier?

Plan this before the box goes in. The enclosure fills the behind seat space by design, which is where most people were intending to put the amp. A compact Class D monoblock will usually fit under a front seat or against the rear wall beside the enclosure. Route and test your power and signal runs before final placement.

What is the warranty on this system?

The enclosure carries a 2 year limited warranty on craftsmanship and materials, which is the standard across the Vehicle Specific line. The JL Audio 10TW3-D4 carries its own manufacturer warranty separately, handled through JL Audio.

Is there a higher output version for the same space?

Yes. The PR Edition uses a passive radiator in the same cab location to extend the low end further than a sealed box can, without needing the port length the space will not allow. We also build a dual 10 version for this platform, and the same cab with the Kicker CompRT 10, the Alpine RS-W10D4 and the Wavtech thinPRO 12 if you prefer a different driver.

Same series, same size

Other Loaded Series models