Hifonics ZXE12S4

12″ subwoofer · 4 Ω · 300 W RMS

Fs 38 HzQts 0.60Vas 1.89 ft³Xmax 0.14″

Recommended box

For a sedan, one sub, 300 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 volume1.80 ft³ (51 L)
Qtc0.85
Fc54 Hz
F3 (−3 dB, no cabin gain)49 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

Net volume3.04 ft³ (86 L)
Tuning (Fb)37 Hz
Portslot 1 3/4 × 14 5/16″, 12 3/16″ long
Port velocity at 300 W60 ft/s
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 15/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38 Hz
Qts0.60
Qes0.72
Qms3.44
Vas1.89 ft³
Re3.6 Ω
Sd78.3 in²
Xmax0.14″
Vd10.8 in³ calc.
Mms119 g calc.
BL11.9 T·m calc.
EBP53 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.1 dB calc.

General

Size12″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø12 5/8″cutout Ø10 7/8″mounting depth 5 5/16″magnet Ø≈ 7 1/16″
Cutout diameter10 7/8″
Mounting depth5 5/16″
Overall diameter12 5/8″

“≈” 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