Hifonics ZRX12D2

12″ subwoofer · dual 2 Ω · 1,000 W RMS

Fs 33.4 HzQts 0.54Vas 1.00 ft³Xmax 0.49″

Recommended box

For a sedan, one sub, 1,000 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 volume0.85 ft³ (24 L)
Qtc0.80
Fc49 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 9/16″
Open sealed box in designer

Ported

Net volume2.58 ft³ (73 L)
Tuning (Fb)27 Hz
Portslot 2 3/4 × 14 5/16″, 51″ long
Port velocity at 1,000 W63 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 13/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.4 Hz
Qts0.54
Qes0.63
Qms3.88
Vas1.00 ft³
Re (one coil)2 Ω
Sd76.7 in²
Xmax0.49″
Vd37.8 in³ calc.
Mms278 g calc.
BL13.6 T·m calc.
EBP53 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.2 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power1,000 W

Mounting dimensions

Ø12 13/16″cutout Ø11 1/8″mounting depth 7 5/16″magnet Ø≈ 7 3/16″
Cutout diameter11 1/8″
Mounting depth7 5/16″
Overall diameter12 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 Hifonics 12″ models