JL Audio 13W7AE-D1.5

13.5″ subwoofer · dual 1.5 Ω · 1,500 W RMS

Fs 23.5 HzQts 0.45Vas 3.68 ft³Xmax 1.26″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 1,500 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume1.70 ft³ (48 L)
Qtc0.80
Fc42 Hz
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)14 15/16″ × 14 15/16″ × 19 1/16″
Open sealed box in designer

Ported

Net volume4.17 ft³ (118 L)
Tuning (Fb)26 Hz
Portslot 3 15/16 × 14 5/16″, 47 5/16″ long
Port velocity at 1,500 W64 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 25 15/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs23.5 Hz
Qts0.45
Qes0.476
Qms7.52
Vas3.68 ft³
Re (one coil)1.21 Ω
Sd107.4 in²
Xmax1.26″
Vd135.3 in³ calc.
Mms299 g calc.
BL10.6 T·m calc.
EBP49 — suits sealed calc.
Sensitivity, 1 W / 1 m86.5 dB calc.

General

Size13.5″
Voice coilsdual 1.5 Ω
RMS power1,500 W

Mounting dimensions

Ø14″cutout Ø11 7/8″mounting depth 10 1/2″magnet Ø8 3/8″
Cutout diameter11 7/8″
Mounting depth10 1/2″
Overall diameter14″
Magnet diameter8 3/8″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other JL Audio 13.5″ models