Hifonics ZXT12D2

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

Fs 39 HzQts 0.58Vas 0.57 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)
Qtc0.75
Fc51 Hz
F3 (−3 dB, no cabin gain)50 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 3/16″
Open sealed box in designer

Ported

Net volume1.77 ft³ (50 L)
Tuning (Fb)30 Hz
Portslot 2 3/16 × 14 5/16″, 47 5/8″ long
Port velocity at 3,000 W125 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 13 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
Qts0.58
Qes0.67
Qms4.28
Vas0.57 ft³
Re (one coil)2 Ω
Sd73.2 in²
Xmax0.91″
Vd66.2 in³ calc.
Mms328 g calc.
BL15.5 T·m calc.
EBP58 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.5 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 Ø≈ 7 1/4″
Cutout diameter11 3/16″
Mounting depth8 3/4″
Overall diameter12 3/8″

“≈” 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