For a sedan, one sub, 300 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 Ported · SPL in dB at 1 W / 1 m, no cabin gain
Thiele/Small parameters
Fs
37 Hz
Qts
0.45
Qes
0.52
Qms
3.15
Vas
0.60 ft³
Re (one coil)
≈ 1.7 Ω
Sd
50.2 in²
Xmax
0.75″
Vd
37.6 in³ calc.
Mms
161 g calc.
BL
11.1 T·m calc.
EBP
71 — sealed or ported calc.
Sensitivity, 1 W / 1 m
84.2 dB calc.
General
Size
10″
Voice coils
dual 2 Ω
RMS power
300 W
Mounting dimensions
Cutout diameter
9 5/16″
Mounting depth
6″
Overall diameter
11″
“≈” 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.