ESX VX15PRO (2x2 Ohm)

15″ subwoofer · dual 2 Ω · 3,500 W RMS

Fs 33 HzQts 0.54Vas 1.91 ft³Xmax 0.91″

Recommended box

For a sedan, one sub, 3,500 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 volume1.62 ft³ (46 L)
Qtc0.80
Fc49 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 13 3/4″
Open sealed box in designer

Ported

Net volume4.87 ft³ (138 L)
Tuning (Fb)27 Hz
Portslot 5 7/8 × 16 11/16″, 66″ long
Port velocity at 3,500 W64 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 32 13/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33 Hz
Qts0.54
Qes0.65
Qms3.26
Vas1.91 ft³
Re (one coil)2 Ω
Sd125.6 in²
Xmax0.91″
Vd113.7 in³ calc.
Mms400 g calc.
BL16 T·m calc.
EBP51 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.8 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power3,500 W

Mounting dimensions

Ø15 7/16″cutout Ø14 1/8″mounting depth 9 7/8″magnet Ø8 11/16″
Cutout diameter14 1/8″
Mounting depth9 7/8″
Overall diameter15 7/16″
Magnet diameter8 11/16″

“≈” 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