For a sedan, one sub, 500 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
34 Hz
Qts
0.59
Qes
0.65
Qms
7
Vas
0.58 ft³
Re
0.88 Ω
Sd
55.2 in²
Xmax
0.59″
Vd
32.6 in³ calc.
Mms
240 g calc.
BL
8.3 T·m calc.
EBP
52 — sealed or ported calc.
Sensitivity, 1 W / 1 m
82 dB calc.
General
Size
10″
Voice coils
1 Ω
RMS power
500 W
Mounting dimensions
Cutout diameter
9 1/8″
Mounting depth
3 1/16″
“≈” 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.