Dayton Audio LS12-44

12″ subwoofer · dual 4 Ω · 250 W RMS

Fs 33.7 HzQts 0.50Vas 2.00 ft³Xmax 0.39″

Recommended box

For a sedan, one sub, 250 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 volume1.31 ft³ (37 L)
Qtc0.80
Fc54 Hz
F3 (−3 dB, no cabin gain)51 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 16 7/16″
Open sealed box in designer

Ported

Net volume3.28 ft³ (93 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 14″ long
Port velocity at 250 W65 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.7 Hz
Qts0.50
Qes0.56
Qms4.95
Vas2.00 ft³
Re (one coil)3.75 Ω
Sd84.8 in²
Xmax0.39″
Vd33.4 in³ calc.
Mms167 g calc.
BL15.4 T·m calc.
EBP60 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.9 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power250 W

Mounting dimensions

Ø≈ 12 5/16″cutout ≈ Ø11 1/8″mounting depth ≈ 5 7/8″magnet Ø≈ 7 3/16″
Cutout diameter≈ 11 1/8″
Mounting depth≈ 5 7/8″

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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