Infinity Kappa 100.9W

10″ subwoofer · 4 Ω · 350 W RMS

Fs 33.8 HzQts 0.44Vas 0.64 ft³Xmax 0.69″

Recommended box

For a sedan, one sub, 350 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 volume0.46 ft³ (13 L)
Qtc0.67
Fc52 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 9 3/16″
Open sealed box in designer

Ported

Net volume0.99 ft³ (28 L)
Tuning (Fb)32 Hz
Portround port Ø3″, 16 3/8″ long
Port velocity at 350 W132 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)21 3/16″ × 15 3/4″ × 8 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.8 Hz
Qts0.44
Qes0.53
Qms2.43
Vas0.64 ft³
Re4.2 Ω
Sd51.2 in²
Xmax0.69″
Vd35.2 in³ calc.
Mms189 g calc.
BL17.9 T·m calc.
EBP64 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.2 dB calc.

General

Size10″
Voice coils4 Ω
RMS power350 W

Mounting dimensions

Ø10 3/4″cutout Ø9 3/16″mounting depth 5 7/8″magnet Ø≈ 6″
Cutout diameter9 3/16″
Mounting depth5 7/8″
Overall diameter10 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.

Data sources

Other Infinity 10″ models