Hifonics ZXS12D2

12″ subwoofer · dual 2 Ω · 500 W RMS

Fs 28.5 HzQts 0.47Vas 2.06 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 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 volume1.13 ft³ (32 L)
Qtc0.80
Fc48 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 14 9/16″
Open sealed box in designer

Ported

Net volume3.07 ft³ (87 L)
Tuning (Fb)28 Hz
Portslot 2 3/16 × 14 5/16″, 29 13/16″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 7/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.5 Hz
Qts0.47
Qes0.55
Qms3.46
Vas2.06 ft³
Re (one coil)2 Ω
Sd79.1 in²
Xmax0.55″
Vd43.6 in³ calc.
Mms197 g calc.
BL11.3 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.9 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø12 1/2″cutout Ø11 3/16″mounting depth 6 9/16″magnet Ø≈ 7 1/4″
Cutout diameter11 3/16″
Mounting depth6 9/16″
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 Hifonics 12″ models