Rockville PUNISHER 12D2

12″ subwoofer · dual 2 Ω · 1,400 W RMS

Fs 32.8 HzQts 0.37Vas 0.93 ft³Xmax 1.10″

Recommended box

For a sedan, one sub, 1,400 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 volume0.79 ft³ (22.5 L)
Qtc0.54
Fc48 Hz
F3 (−3 dB, no cabin gain)69 Hz
Example box (outside)14 15/16″ × 14 15/16″ × 9 7/8″
Open sealed box in designer

Ported

Net volume1.59 ft³ (45 L)
Tuning (Fb)29 Hz
Portslot 1 9/16 × 14 5/16″, 41 3/16″ long
Port velocity at 1,400 W108 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32.8 Hz
Qts0.37
Qes0.424
Qms2.81
Vas0.93 ft³
Re (one coil)2 Ω
Sd82.2 in²
Xmax1.10″
Vd90.6 in³ calc.
Mms357 g calc.
BL18.6 T·m calc.
EBP77 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.4 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power1,400 W

Mounting dimensions

Ø≈ 13 1/8″cutout Ø11 15/16″mounting depth 7 1/2″magnet Ø8 1/4″
Cutout diameter11 15/16″
Mounting depth7 1/2″
Magnet diameter8 1/4″

“≈” 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 Rockville 12″ models