Phoenix Gold ZMAX122 (DVC 2 ohm)

12″ subwoofer · dual 2 Ω · 1,500 W RMS

Fs 33.5 HzQts 0.40Vas 0.75 ft³Xmax 0.65″

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 volume0.71 ft³ (20 L)
Qtc0.57
Fc48 Hz
F3 (−3 dB, no cabin gain)65 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 9 9/16″
Open sealed box in designer

Ported

Net volume1.52 ft³ (43 L)
Tuning (Fb)28 Hz
Port2 round ports Ø2 1/2″, 20 9/16″ long
Port velocity at 1,500 W256 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)28 3/16″ × 15 3/4″ × 9 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.5 Hz
Qts0.40
Qes0.423
Qms6.09
Vas0.75 ft³
Re (one coil)2.2 Ω
Sd79.2 in²
Xmax0.65″
Vd51.4 in³ calc.
Mms393 g calc.
BL20.8 T·m calc.
EBP79 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.8 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power1,500 W

Mounting dimensions

Ø12 15/16″cutout Ø11 5/16″mounting depth 7 1/16″magnet Ø≈ 7 3/8″
Cutout diameter11 5/16″
Mounting depth7 1/16″
Overall diameter12 15/16″

“≈” 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 Phoenix Gold 12″ models