Rockville W15K6D2 V2

15″ subwoofer · dual 2 Ω · 1,000 W RMS

Fs 29.8 HzQts 0.61Vas 3.80 ft³Xmax 0.94″

Recommended box

For a sedan, one sub, 1,000 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 volume3.00 ft³ (85 L)
Qtc0.91
Fc45 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 12 3/8″
Open sealed box in designer

Ported

Net volume5.09 ft³ (144 L)
Tuning (Fb)32 Hz
Portslot 3 1/8 × 16 11/16″, 21″ long
Port velocity at 1,000 W64 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 22 1/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29.8 Hz
Qts0.61
Qes0.68
Qms5.62
Vas3.80 ft³
Re (one coil)2 Ω
Sd131.7 in²
Xmax0.94″
Vd124.4 in³ calc.
Mms271 g calc.
BL12.2 T·m calc.
EBP44 — suits sealed calc.
Sensitivity, 1 W / 1 m88.2 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power1,000 W

Mounting dimensions

Ø≈ 15 1/4″cutout Ø14 1/8″mounting depth 7 3/8″magnet Ø≈ 9 3/16″
Cutout diameter14 1/8″
Mounting depth7 3/8″

Cone area (Sd) calculated from Fs, Vas and Mms: 131.7 in².

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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