Dayton Audio PCS12-4

12″ subwoofer · 4 Ω · 180 W RMS

Fs 30 HzQts 0.67Vas 3.14 ft³Xmax 0.28″

Recommended box

For a sedan, one sub, 180 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 volume1.73 ft³ (49 L)
Qtc1.13
Fc50 Hz
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 3/4″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)37 Hz
Portslot 1 9/16 × 14 5/16″, 11 1/8″ long
Port velocity at 180 W47 ft/s
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 3/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.67
Qes0.75
Qms6.4
Vas3.14 ft³
Re3.5 Ω
Sd75.5 in²
Xmax0.28″
Vd20.8 in³ calc.
Mms106 g calc.
BL9.7 T·m calc.
EBP40 — suits sealed calc.
Sensitivity, 1 W / 1 m87.1 dB calc.

General

Size12″
Voice coils4 Ω
RMS power180 W

Mounting dimensions

Ø12 3/4″cutout Ø10 3/4″mounting depth 5 11/16″magnet Ø≈ 7″
Cutout diameter10 3/4″
Mounting depth5 11/16″
Overall diameter12 3/4″

“≈” 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 Dayton Audio 12″ models