ESX VX12PRO (2x2 Ohm)

12″ subwoofer · dual 2 Ω · 3,000 W RMS

Fs 39 HzQts 0.53Vas 0.64 ft³Xmax 0.91″

Recommended box

For a sedan, one sub, 3,000 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 volume0.81 ft³ (23 L)
Qtc0.71
Fc52 Hz
F3 (−3 dB, no cabin gain)54 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 3/16″
Open sealed box in designer

Ported

Net volume1.52 ft³ (43 L)
Tuning (Fb)32 Hz
Portround port Ø2 1/2″, 6 3/4″ long
Port velocity at 3,000 W717 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)21 5/8″ × 15 3/4″ × 11 1/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs39 Hz
Qts0.53
Qes0.61
Qms3.95
Vas0.64 ft³
Re (one coil)2 Ω
Sd79.4 in²
Xmax0.91″
Vd71.9 in³ calc.
Mms344 g calc.
BL16.6 T·m calc.
EBP64 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.4 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power3,000 W

Mounting dimensions

Ø12 3/8″cutout Ø11 3/16″mounting depth 8 3/4″magnet Ø8 11/16″
Cutout diameter11 3/16″
Mounting depth8 3/4″
Overall diameter12 3/8″
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 12″ models