Dayton Audio SS12-22

12″ subwoofer · dual 2 Ω · 900 W RMS

Fs 27 HzQts 0.35Vas 1.74 ft³Xmax 0.91″

Recommended box

For a sedan, one sub, 900 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 volume0.76 ft³ (21.5 L)
Qtc0.64
Fc49 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 10 1/16″
Open sealed box in designer

Ported

Net volume1.55 ft³ (44 L)
Tuning (Fb)30 Hz
Portslot 1 3/4 × 14 5/16″, 44 3/8″ long
Port velocity at 900 W72 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 9/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27 Hz
Qts0.35
Qes0.39
Qms3.47
Vas1.74 ft³
Re (one coil)2.45 Ω
Sd81.8 in²
Xmax0.91″
Vd74.1 in³ calc.
Mms278 g calc.
BL17.2 T·m calc.
EBP69 — sealed or ported calc.
Sensitivity, 1 W / 1 m86 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power900 W

Mounting dimensions

Ø12 5/8″cutout Ø11 1/4″mounting depth 7 5/8″magnet Ø≈ 7 5/16″
Cutout diameter11 1/4″
Mounting depth7 5/8″
Overall diameter12 5/8″

“≈” 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 Dayton Audio 12″ models