For a sedan, one sub, 600 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
33 Hz
Qts
0.38
Qes
0.48
Qms
1.75
Vas
1.48 ft³
Re
1.3 Ω
Sd
53.6 in²
Xmax
0.37″
Vd
20.1 in³ calc.
Mms
94 g calc.
BL
7.3 T·m calc.
EBP
69 — sealed or ported calc.
Sensitivity, 1 W / 1 m
87 dB calc.
General
Size
10″
Voice coils
2 Ω
RMS power
600 W
Mounting dimensions
Cutout diameter
8 7/8″
Mounting depth
5 5/8″
Overall diameter
10 3/8″
“≈” 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.