Skar Audio ZVX-12v2 D1

12″ subwoofer · dual 1 Ω · 1,500 W RMS

Fs 51 HzQts 0.39Vas 0.86 ft³Xmax 1.14″
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 volume0.99 ft³ (28 L)
Qtc0.54
Fc70 Hz
F3 (−3 dB, no cabin gain)100 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 12 3/8″
Open sealed box in designer

Ported

Net volume1.52 ft³ (43 L)
Tuning (Fb)44 Hz
Port2 round ports Ø2 1/2″, 7 1/4″ long
Port velocity at 1,500 W306 ft/s
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)19 3/4″ × 15 3/4″ × 12 3/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs51 Hz
Qts0.39
Qes0.44
Qms3.8
Vas0.86 ft³
Re (one coil)≈ 0.85 Ω
Sd79.1 in²
Xmax1.14″
Vd90.3 in³ calc.
Mms147 g calc.
BL9.5 T·m calc.
EBP116 — suits ported calc.
Sensitivity, 1 W / 1 m90.7 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power1,500 W

Mounting dimensions

Ø12 5/8″cutout Ø11 1/4″mounting depth 9 7/8″magnet Ø7 13/16″
Cutout diameter11 1/4″
Mounting depth9 7/8″
Overall diameter12 5/8″
Magnet diameter7 13/16″

“≈” 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 Skar Audio 12″ models