ESX QXE15D2 (2x2 Ohm)

15″ subwoofer · dual 2 Ω · 1,500 W RMS

Fs 32 HzQts 0.40Vas 2.24 ft³Xmax 0.55″

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 volume1.17 ft³ (33 L)
Qtc0.68
Fc55 Hz
F3 (−3 dB, no cabin gain)60 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 11 1/16″
Open sealed box in designer

Ported

Net volume2.44 ft³ (69 L)
Tuning (Fb)34 Hz
Portslot 3 1/8 × 16 5/16″, 42 13/16″ long
Port velocity at 1,500 W63 ft/s
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 15 7/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32 Hz
Qts0.40
Qes0.43
Qms5.68
Vas2.24 ft³
Re (one coil)1.9 Ω
Sd127.1 in²
Xmax0.55″
Vd70.1 in³ calc.
Mms372 g calc.
BL18.2 T·m calc.
EBP74 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.8 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power1,500 W

Mounting dimensions

Ø15 9/16″cutout Ø13 3/4″mounting depth 8 1/16″magnet Ø7 1/2″
Cutout diameter13 3/4″
Mounting depth8 1/16″
Overall diameter15 9/16″
Magnet diameter7 1/2″

“≈” 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 ESX 15″ models