Professional Series · Datasheet

Professional Series Ported 13" Enclosure JL Audio 13W7AE · Single 13" Ported enclosure

Net volume
2.50 Cubic Feet
Tuning
33.0 Hz
Max mounting depth
10.512 Inches (JL Audio Spec)
Cutout
11.890 Inches (JL Audio Spec)
External dimensions
32.00 Inches W × 16.00 Inches H × 17.75 Inches D
Front baffle
Triple-Layer 2.25" MDF | Woofer Flush-Mounted In The Outer Layer
Buy at Audio IntensityFactory-direct, ships from Tullahoma
  • Alignment: 2.50 cu ft net vented at 33.0 Hz
  • Driver: JL Audio 13W7AE D1.5, 1500 W RMS, 32.0 mm Xmax, 23.50 Hz Fs
  • Build: Front-firing standard box, triple 2.25" baffle with the woofer flush-mounted in the outer layer, JL Audio logo acrylic, dado joinery, 42.5 sq in slot port beside the woofer, internally braced
  • Cabinet: 32.00" W x 16.00" H x 17.75" D, 85 lb

Spec of record

Technical specifications

SeriesProline X Professional
Driver-Specific FitmentJL Audio 13W7AE D1.5 (Dual 1.5 Ohm)
Enclosure TypePorted | Front-Firing Standard Box
External Width32.00 Inches
External Height16.00 Inches
External Depth17.75 Inches
Internal Volume (Net)2.50 Cubic Feet
Port TypeVertical Slot Beside The Woofer | Front Exit | Internally Braced
Port Area42.5 Square Inches
Port Tuning (Fb)33.0 Hz
Design Power Basis2250 W RMS (1.5 x The Driver Rating)
Driver Fs23.50 Hz
Driver Qts0.450
Driver Qes / Qms0.480 / 7.520
Driver Vas104.000 Liters / 3.673 Cubic Feet
Driver Sd693.0 Square Centimeters
Driver Mms300.00 g
Driver BL15.00
Driver Re2.4 Ohm
Driver Xmax32mm (One-Way)
Driver Power Handling1500 Watts RMS
Driver Overall Diameter14.016 Inches (JL Audio Spec)
Mounting Depth Required10.512 Inches (JL Audio Spec)
Cutout Diameter11.890 Inches (JL Audio Spec)
Flush Mount Recess15.000 Inches In The Outer Layer
Voice Coil ConfigurationDual 1.5 Ohm
MaterialLangboard Elite 3/4" MDF
JoineryDado Joinery (CNC-Cut), Flat Panels
Front Baffle ConstructionTriple-Layer 2.25" MDF | Woofer Flush-Mounted In The Outer Layer
Baffle Layers3
AcrylicGlossy Black JL Audio Logo Insert, Outer Layer, Standard
Terminal CupProline X ABS/Carbon Fiber Composite | Back Panel, Terminal-Cup Side | 12g OFC Pre-Wired
DampingNone - Ships Dry. Polyfill Detunes A Ported Enclosure
Carpet FinishPlush Black
Weight85 lb
ShippingUPS Ground Parcel, Included In The 48 States
Bundle OptionsEnclosure Only (Bring Your Own JL Audio 13W7AE)
Warranty2-Year Limited (Enclosure)
ManufacturedTullahoma, Tennessee, USA

Modelled response

Performance in this enclosure

Net airspace
2.50
cu ft
Tuning
33.0
Hz · Fb
Half power
29.9
Hz · F3, anechoic
Xmax at
11546
W RMS · 26 Hz subsonic
With NO filter
2019
W RMS · unfiltered
Port
25.4
m/s at the mouth · 2250 W

01Is this driver right for a ported box?

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

EBP = Fs ÷ Qes = 49.0
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 EBP 49.0
JL Audio 13W7AE-D1.5 · EBP 49.0
Under 50 the raw number leans sealed. The JL Audio 13W7AE-D1.5 reads 49.0, so this is a ported build against the grain of its own EBP: it works because the alignment is tuned for in-car response rather than for an anechoic curve, and because the cabinet holds port area and volume the driver can actually use.

02What the box does to it

2.50 cu ft net against a 104.0 L Vas, vented at 33.0 Hz.

Fb = 33.0 Hz  ·  F3 = 29.9 Hz  ·  passband ripple 3.11 dB
20 30 50 70 100 150 200 +6 +0 −6 −12 −18 −24 FREQUENCY · Hz LEVEL · dB −3 dB Fb 33.0
JL Audio 13W7AE-D1.5 · Fb 33.0 Hz, F3 29.9 Hz
Anechoic, before any cabin gain, with the 26 Hz subsonic filter already applied. The vent takes over below 33 Hz and the cone stops doing the work there, which is what holds travel down at the bottom of the passband.

03Ported vs Sealed

No sealed comparison is shown for this driver.

A ported-versus-sealed chart is only worth reading against a sealed box someone would actually build: the one we make for the driver, or the one its maker recommends. Neither exists for the JL Audio 13W7AE-D1.5 — we do not build a sealed enclosure for it and JL Audio publish no sealed volume for it — so rather than compare this cabinet against itself stuffed and sealed, a box no one would build, the comparison is left out.

04The 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 JL Audio's published 32.0 mm. The two traces are the same cabinet with the subsonic filter switched on and switched off.

PXmax = 11546 W with a 26 Hz subsonic  ·  2019 W with none  →  the filter is worth 5.7×
20 30 50 70 100 150 200 0 8 16 24 32 40 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 32.0 mm 11546 W reaches Xmax here
11546 W · subsonic at 26 Hz, 24 dB/oct2019 W · no subsonic filterXmax 32.0 mm one-way, published
Each trace touches the limit and no further, because each is drawn at the exact power that puts the cone on 32.0 mm. With a 26 Hz subsonic that takes 11546 W, reached first at 45 Hz. Take the filter away and the same cabinet reaches 32.0 mm on 2019 W — the filter is worth 5.7× the safe power. A vent unloads the cone below tuning, so there is nothing holding it once the box stops loading: on a sealed build a subsonic filter is an improvement, here it is required equipment. The unfiltered trace is still rising where this chart stops at 20 Hz, so treat 2019 W as a bound rather than a floor. Every wattage on this page is a MECHANICAL limit, not an electrical one. It is the power at which the cone runs out of linear travel in this cabinet, and nothing more. What the voice coil can dissipate as heat is a separate ceiling set by the driver, not by the box — JL Audio rate this one at 1500 W RMS, and that is the number that binds first here: heat stops you before travel does, so treat 1500 W as the ceiling and the travel figures above as headroom. Final wired impedance, amplifier output and how long you hold the level are all electrical questions this graph does not answer.

From the shop floor

Installer's take

I built this box on JL Audio's own published numbers for the 13W7AE, the largest driver this line's W7 family carries.

The port stays clean to 1004 watts, a fraction of the coil's own 1500 watt rating; this driver's motor can move more air than a port this size can pass without starting to chuff.

Wire the dual coil in series for a nominal 3 ohms, or in parallel only on an amplifier built for a sub-one-ohm load.

It ships dry. Do not add polyfill to a ported box. Set your subsonic filter at 26 Hz.

How it's built

Construction

Precision Engineering for Perfect Fit

Precision Engineering for Perfect Fit

Custom Fit for JL Audio 13w7

The Proline-X enclosure is tailored specifically for the JL Audio 13w7 subwoofer. This precision fit maximizes the subwoofer's performance by ensuring an airtight seal. The custom dimensions allow the subwoofer to work in optimal conditions. This careful design results in better audio performance and increased efficiency.

Enhanced Sound Output with Premium Materials

Enhanced Sound Output with Premium Materials

MDF Construction

The Proline-X enclosure uses Medium Density Fiberboard (MDF) to ensure durability and superior acoustic performance. MDF is known for its density and uniformity, which helps create a non-resonant environment for the subwoofer. This provides cleaner and more impactful bass. High-grade MDF also ensures longevity, making the enclosure a reliable investment.

High Power Handling for Peak Performance

High Power Handling for Peak Performance

Designed for High Power Subwoofers

The enclosure is designed to accommodate the immense power of the JL Audio 13w7. It can handle high wattage without flexing or losing acoustic integrity. This high power handling ensures that users can push the subwoofer to its limits without worrying about damaging the enclosure. The result is powerful, distortion-free bass even at peak volumes.

Acoustic Performance Tailored for JL Audio 13w7

Acoustic Performance Tailored for JL Audio 13w7

Perfect Air Volume

The internal volume of the Proline-X enclosure is specifically calculated for the JL Audio 13w7 subwoofer. Proper air volume ensures the subwoofer operates within its optimal range. This provides deeper bass without compromising clarity. By tailoring the air space, the enclosure maximizes the subwoofer’s efficiency and performance.

Before you order

Questions

Why is this enclosure tuned to 33.0 Hz?

The port on this box stays clean up to 1004 W before the mouth velocity crosses the chuff threshold, a fraction of the coil's own 1500 W power rating; this driver's motor and Xmax outrun what a port this size can pass cleanly. Ripple across the passband holds at 3.11 dB, and the in-car curve stays tight across the passband rather than peaking at either end. There is no sealed reference for the 13W7AE in our data, so no sealed-versus-ported comparison is offered for this driver. Tuning is chosen for in-car response rather than an anechoic curve: a vehicle adds roughly 12 dB per octave below about 45 Hz, and this tuning is where that sum comes out flattest across 25 to 60 Hz.

What makes this Professional rather than Performance Optimized?

The box. A Performance Optimized cabinet is cut to fit a trunk shape on a 1.5 inch double baffle; this one is a full-size front-firing box on a 2.25 inch triple baffle with the woofer flush-mounted in the outer layer, JL Audio logo acrylic, and a port checked at 2250 W rather than the rating. It carries a 2 year warranty against 1.

Threaded inserts or a kit?

Threaded insert kit included for customer installation: 8 to 12 inserts sized to the woofer, the correct drill bit, 2.5 inch allen-head screws, allen key and gasket tape. One kit serves one woofer; a dual cabinet ships two.

Do I need a subsonic filter?

Yes, at 26 Hz, 24 dB per octave. Below tuning a vented box stops loading the cone and excursion runs away toward DC. With the filter in place this cabinet puts the JL Audio 13W7AE at 44 percent of its usable travel at 2250 W.

Would a sealed box be better for me?

Not one we can show you. We do not build a sealed enclosure for the JL Audio 13W7AE and JL Audio publish no sealed volume for it, so the Performance Graphs tab carries no ported-versus-sealed chart: the only sealed box left to plot would be this cabinet stuffed and sealed, which nobody would build, and a comparison against it would tell you nothing you could buy. What a vented box gives up is the region below tuning, where the cone unloads and the 26 Hz subsonic filter takes over; around 33.0 Hz the vent carries the load and cone travel drops to its minimum, which no sealed alignment can do.

How does the front port work?

It is a vertical slot beside the woofer, 42.5 square inches, tuned to 33.0 Hz. The port stays under the chuff threshold up to 1004 W; above that the air at the mouth moves faster than the 17 metres per second where a slot starts to chuff.

How heavy is it and how does it ship?

85 lb, 32.00" W x 16.00" H x 17.75" D external. It ships as a UPS parcel; the price includes shipping in the 48 states. Do not add polyfill; it ships dry on purpose.

Is the 13W7AE included?

No. This is an enclosure only, cut for the JL Audio 13W7AE specifically: the 11.890 inch cutout and the 10.512 inch mounting depth allowance come from JL Audio's published parameters. Bring your own driver.