Rockville W15K5S2

15″ subwoofer · 2 Ω · 500 W RMS

Fs 28.6 HzQts 0.38Vas 4.63 ft³Xmax 0.31″

Recommended box

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

Net volume1.34 ft³ (38 L)
Qtc0.80
Fc60 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 12 5/16″
Open sealed box in designer

Ported

Net volume4.27 ft³ (121 L)
Tuning (Fb)32 Hz
Portslot 2 3/8 × 16 5/16″, 18 3/8″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 18 13/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.6 Hz
Qts0.38
Qes0.407
Qms5.36
Vas4.63 ft³
Re1.96 Ω
Sd124.7 in²
Xmax0.31″
Vd39.3 in³ calc.
Mms216 g calc.
BL13.7 T·m calc.
EBP70 — sealed or ported calc.
Sensitivity, 1 W / 1 m90.8 dB calc.

General

Size15″
Voice coils2 Ω
RMS power500 W

Mounting dimensions

Ø≈ 15 1/8″cutout Ø13 15/16″mounting depth 6″magnet Ø6 11/16″
Cutout diameter13 15/16″
Mounting depth6″
Magnet diameter6 11/16″

“≈” 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.

Data sources

Other Rockville 15″ models