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
36.3 Hz
Qts
0.39
Qes
0.409
Qms
9.37
Vas
0.68 ft³
Re (one coil)
1.68 Ω
Sd
55.8 in²
Xmax
0.64″
Vd
35.8 in³ calc.
Mms
182 g calc.
BL
13.1 T·m calc.
EBP
89 — sealed or ported calc.
Sensitivity, 1 W / 1 m
85.6 dB calc.
General
Size
10″
Voice coils
dual 2 Ω
RMS power
600 W
Mounting dimensions
Cutout diameter
9 3/16″
Mounting depth
5 15/16″
Magnet diameter
6 3/4″
“≈” 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.