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Performance Optimized · Datasheet

Performance Optimized Wedge Wide Sealed Triple 10" Enclosure JL Audio 10W7AE · Triple 10" Sealed enclosure

Net volume
1.732 cu ft per driver, 5.20 cu ft total, after both dividers and JL Audio's published 0.088 cu ft displacement per driver
Max mounting depth
7.99 in required; 8.52 in clearance above the motor against the raked rear panel
External dimensions
40 in W × 17 in at the seat face H × 23.00 in at the base D
Front baffle
1.5 in double baffle, outer layer machined as a flush recess
Buy at Audio IntensityFactory-direct, ships from Tullahoma
JL Audio 10W7AEBuy at Audio Intensity
  • Best For: Triple JL Audio 10W7AE SUV Cargo-Floor Builds
  • Net Volume: 1.732 cu ft per Driver (5.20 cu ft Net Total)
  • Driver Match: Three JL Audio 10W7AE (Single 3 Ohm), matched
  • Construction: 3 Chambers | 40" Wide Wedge | V-Groove/Dado | Double 1.5" Baffle | 3 Terminal Cups

Spec of record

Technical specifications

SpecificationValue
SeriesProline X Performance Optimized Wedge Wide
Compatible DriverJL Audio 10W7AE, quantity 3, matched. Direct fit
ConfigurationTriple 10 inch sealed wedge, 3 chambers, 1 driver per chamber
Mounting PositionSUV cargo floor, raked face against the rear seat back
Firing DirectionRearward toward the liftgate. Not a down fire design
External Width40 in
External Height17 in at the seat face
External Depth23.00 in at the base, tapering to 16.81 in at the top
Internal Volume, Gross5.69 cu ft total
Internal Volume, Net Acoustic1.732 cu ft per driver, 5.20 cu ft total, after both dividers and JL Audio's published 0.088 cu ft displacement per driver
Driver Mounting Depth7.99 in required; 8.52 in clearance above the motor against the raked rear panel
Alignment Per Driver10W7AE-3 Qtc 0.712, fc 40.3 Hz, F3 40.1 Hz anechoic
Woofer Openings3 at 8.740 in
Woofer LayoutOne row across the face
Frame Outer Diameter10.512 in
Fs / Qts / Qes / Qms30.6 Hz / 0.540 / 0.580 / 7.650
Vas / Sd / Xmax36.1 L / 386 cm2 / 23 mm
Driver Power Handling750 W RMS per driver, 2250 W RMS for the set of 3 (thermal rating)
Recommended Amplifier520-750 W RMS per driver, 1,560-2,250 W RMS for the full set, at 9 ohms
Parameter SourceJL Audio published specifications
MaterialLangboard Elite MDF
ConstructionCNC cut, V-groove and dado joinery
Panel Thickness0.75 in
Front Baffle1.5 in double baffle, outer layer machined as a flush recess
Internal BracingTwo full-height 3/4 in dividers
Driver MountingThreaded inserts, stainless machine screws included
Terminal CupsThree Proline X ABS and carbon fiber composite, on the rear panel, one per chamber, pre wired 12 gauge OFC
Acrylic InsertGloss black acrylic baffle insert standard
DampingLight polyfill wall lining in every chamber, does not alter acoustic volume
CarpetPlush black
Shipping Weight97 lb
Warranty1 Year Limited
Built InTullahoma, Tennessee

Modelled response

Performance in this enclosure

Net airspace
1.732
cu ft per driver
System Qtc
0.71
sealed
Half power
40.1
Hz · F3
Xmax at
553
W RMS per driver · no filter
With 25 Hz subsonic
824
W RMS per driver · +49%
Amplifier, per driver
520–750
W RMS recommended
This enclosure holds 1.732 cu ft net per driver. In it the JL Audio 10W7AE-3 runs a system Qtc of 0.71 with half power at 40.1 Hz, and the cone reaches its 23.0 mm travel limit at 553 W per driver, below the driver’s 750 W thermal rating, so travel is what stops you here, not heat. Run a subsonic filter at 25 Hz and that becomes 824 W per driver — +271 W, or 49 percent more power for the same 23.0 mm of travel.

00Sizing the amplifier

Every wattage on this panel is per driver. This cabinet holds three, so the amplifier feeds all three at once.

Per driver 520–750 W RMS  ×  3 drivers  =  full set 1,560–2,250 W RMS at 9 ohms
Look for a mono amplifier rated 1,560–2,250 W RMS at 9 ohms, the load the set wires to most easily. The top is the driver’s 750 W thermal rating; with the 25 Hz subsonic set the cone still has travel to spare there, reaching Xmax only at 824 W. The top of the range needs the 25 Hz subsonic filter set; without it, keep each driver under 553 W, where the cone reaches Xmax unfiltered. Below the bottom of the range it will play, just with less headroom; above the top you are buying power the drivers cannot use.

01Is it a sealed driver?

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

EBP = Fs ÷ Qes = 52.8
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 Single 3 Ohm 52.8
Single 3 Ohm · EBP 52.8
At 52.8 the 10W7AE-3 sits in the transition band, not the sealed band. That is not a mismatch: a transition motor works in either alignment, and sealed buys a smaller box and a gentler roll-off at the cost of some low-end output. Stage 02 shows what this airspace actually does with it.

02What the box does to it

1.732 cu ft against a 36.1 L Vas.

α = Vas ÷ Vb = 0.74  ·  Fc = Fs√(α+1) = 40 Hz  ·  Qtc = 0.71
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
Single 3 Ohm · Qtc 0.71, Fc 40 Hz, F3 40.1 Hz
The box lifts resonance from 30.6 Hz free-air to 40 Hz and half power lands at 40.1 Hz, anechoic, before any cabin gain. Figures are JL Audio’s published parameters; Qes and Qms reproduce the printed Qts. This cabinet holds three drivers in three separate sealed chambers of 1.732 cubic feet each, the volume plotted here.

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 23.0 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

PXmax = 553 W per driver unfiltered  →  824 W per driver with a 25 Hz subsonic
20 30 50 70 100 150 200 0 8 16 24 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 23.0 mm 553 W reaches Xmax here
Single 3 Ohm · 553 W, no filterSingle 3 Ohm · 824 W with subsonic at 25 Hz, 24 dB/octXmax 23.0 mm one-way
Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 23.0 mm. Unfiltered that is 553 W per driver, reached first at 20 Hz. It sits under the 750 W the driver can take thermally, so the enclosure sets the ceiling, not the voice coil. 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 824 W per driver before hitting the same 23.0 mm. That is 49 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs30.60Hzfree-air resonance
Qts0.540Single 3 Ohm
Vas36.10Lequivalent compliance
Sd386.0cm²effective piston area
Xmax23mmone-way linear travel
Pe750Wcontinuous RMS
SPL84.4dB1 W / 1 m, derived from T/S

Driver parameters as published by JL Audio 10W7AE-3 published specifications. Curves computed against this enclosure’s actual net airspace.

From the shop floor

Installer's take

Start with the size. 1.732 cubic feet per driver puts the 10W7AE at Qtc 0.712, resonance 40.3 Hz, half power 40.1 Hz anechoic: maximally flat, no peak, the lowest F3 a sealed box reaches without a lift. JL Audio publish no sealed recommendation for the 10W7AE, so this is the Butterworth box.

Measure the base depth, not the top. This cabinet is 23.00 in deep where it meets the floor, 16.81 at the top, 40 wide and 17 tall. In an SUV the 40 has to clear between the rear wheel wells at floor height, the base depth is measured from the seat back with the seat upright and latched, and the 17 has to clear the cargo cover.

All three terminal cups are on the rear panel, and the rear panel is the face that goes against the seat back. Wire all three before the box goes in, with enough slack to slide it into place; once the raked face is against the seat you cannot reach them.

Impedance. 10W7AE-3: wire for 9 ohms (the three in series), the load most monoblocks are built to deliver full power into; 1 ohm is the other clean option (the three in parallel). Work the load out before you buy the amplifier, not after.

Power. Size the amplifier for the set, not one driver: 520 to 750 W RMS per driver is 1,560 to 2,250 W RMS across all 3 at 9 ohms. Set the 25 Hz subsonic to use the top of that range; without it keep each driver under 553 W. At 2,250 W the charging system is part of the install: alternator output, the big three, and a battery that holds voltage under load.

JL Audio's Qes and Qms reproduce the printed Qts within 3 percent, so the alignment rests on a self-consistent set.

Polyfill is in as a wall lining in every chamber. Do not add more: it makes the box act larger and walks Qtc off 0.71.

Before you order

Questions

Does this fit the JL Audio 10W7AE, and its coil versions?

Yes. Each opening is cut to 8.740 in for the 10.512 in frame, and the 7.99 in deep motor clears the raked rear panel with 8.52 in to spare. Coil versions of the JL Audio 10W7AE share the frame, cutout and mounting depth, so any of them drops in. The alignment on this page is computed on the 10W7AE-3 parameters.

Run three matched drivers, same model and same coil, so every chamber sees the alignment on this page.

Why 1.732 cubic feet per driver, and what alignment does it target?

On JL Audio's published Fs 30.6 Hz, Qts 0.540 and Vas 36.1 liters, 1.732 cubic feet per driver gives Qtc 0.712, system resonance 40.3 Hz and half power 40.1 Hz.

Qtc 0.707 is maximally flat: the deepest response a sealed box gives without a lift near resonance.

What amplifier power should I run, and how should I wire it?

JL Audio rates the 10W7AE at 750 watts RMS per driver. Recommended amplifier: 520 to 750 W RMS per driver, 1,560 to 2,250 W RMS for the full set of 3. The top of that range needs the 25 Hz subsonic; without it keep each driver under 553 W.

Each 10W7AE-3 has a single 3 ohm voice coil. The three in parallel present 1 ohm; in series, 9 ohms. Check the result against your amplifier's minimum stable impedance before powering up.

Will it fit my SUV?

It is 40 inches wide, 17 tall and 23.00 deep at the base, tapering to 16.81 at the top. Measure between the rear wheel wells, the floor depth with the seat upright, and the height under your cargo cover.

The raked face goes against the seat back and the woofers fire toward the liftgate.

Why are all three terminal cups on the back?

Each driver has its own sealed chamber, and the center chamber has no side wall to take a cup. Putting all three on the rear panel gives a matching set, one cup per chamber.

Wire them at the amplifier end; there is no cross-chamber wiring inside the cabinet.

What is the expected low-frequency extension?

Anechoic F3 is 40.1 Hz per driver with system resonance at 40.3 Hz.

Those figures exclude cabin gain. An SUV cabin adds real output below about 50 Hz, so in-vehicle response runs deeper than the numbers above.

Do I need to add polyfill or damping?

No. Polyfill is already installed as a light wall lining in every chamber, and the quantity is chosen so it does not change the acoustic volume.

Do not add more. Packing a sealed box makes it behave as though it were larger, which moves the alignment away from 1.732 cubic feet per driver.

Are the drivers included?

No. This is an enclosure only. You receive the cabinet finished in plush black carpet with the gloss black acrylic baffle insert, three pre-wired terminal cups on the rear panel, the polyfill lining in place, threaded inserts and stainless machine screws.

Bring three matched JL Audio 10W7AE drivers. The cabinet is cut direct fit to them, not a general purpose 10 inch box.

Same series, same size

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