Rockville W15K6D4 V2

15″ subwoofer · dual 4 Ω · 1,000 W RMS

Fs 38.1 HzQts 1.32Vas 1.70 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 volume2.90 ft³ (82 L)
Qtc1.66
Fc48 Hz
F3 (−3 dB, no cabin gain)34 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 12″
Open sealed box in designer

Ported

Net volume4.91 ft³ (139 L)
Tuning (Fb)36 Hz
Portslot 3 3/8 × 16 11/16″, 17 5/16″ 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″ × 21 1/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38.1 Hz
Qts1.32
Qes1.514
Qms10.27
Vas1.70 ft³
Re (one coil)4.04 Ω
Sd127 in²
Xmax0.94″
Vd120 in³ calc.
Mms345 g calc.
BL14.9 T·m calc.
EBP25 — suits sealed calc.
Sensitivity, 1 W / 1 m84.4 dB calc.

General

Size15″
Voice coilsdual 4 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″

“≈” 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