Kenwood KFC-W2513PS

10″ subwoofer · 4 Ω · 300 W RMS

Fs 31 HzQts 0.54Vas 1.50 ft³Xmax 0.21″

Recommended box

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

Net volume1.24 ft³ (35 L)
Qtc0.80
Fc46 Hz
F3 (−3 dB, no cabin gain)43 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 20 11/16″
Open sealed box in designer

Ported

Net volume2.08 ft³ (59 L)
Tuning (Fb)32 Hz
Portslot 1 9/16 × 14 5/16″, 24 3/8″ long
Port velocity at 300 W56 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31 Hz
Qts0.54
Qes0.575
Qms8.24
Vas1.50 ft³
Re3.6 Ω
Sd54.3 in²
Xmax0.21″
Vd11.3 in³ calc.
Mms108 g calc.
BL11.5 T·m calc.
EBP54 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.4 dB calc.

General

Size10″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø≈ 10 5/16″cutout ≈ Ø9 1/8″mounting depth 5″magnet Ø≈ 5 15/16″
Cutout diameter≈ 9 1/8″
Mounting depth5″

“≈” 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 Kenwood 10″ models