ESX VE1222 (2x2 Ohm)

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

Fs 36 HzQts 0.32Vas 1.02 ft³Xmax 0.69″

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 volume0.83 ft³ (23.5 L)
Qtc0.48
Fc54 Hz
F3 (−3 dB, no cabin gain)91 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 3/8″
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 W749 ft/s
F3 (−3 dB, no cabin gain)32 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

Fs36 Hz
Qts0.32
Qes0.34
Qms5.22
Vas1.02 ft³
Re (one coil)2 Ω
Sd79.1 in²
Xmax0.69″
Vd54.5 in³ calc.
Mms248 g calc.
BL18.2 T·m calc.
EBP106 — suits ported calc.
Sensitivity, 1 W / 1 m88 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power3,000 W

Mounting dimensions

Ø12 1/2″cutout Ø11 3/16″mounting depth 8 13/16″magnet Ø≈ 7 1/4″
Cutout diameter11 3/16″
Mounting depth8 13/16″
Overall diameter12 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 12″ models