B2 Audio RAMPAGE15 D1

15″ subwoofer · dual 1 Ω · 5,000 W RMS

Fs 27.5 HzQts 0.41Vas 1.40 ft³Xmax 1.57″

Recommended box

For a sedan, one sub, 5,000 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 volume1.06 ft³ (30 L)
Qtc0.63
Fc42 Hz
F3 (−3 dB, no cabin gain)50 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 9 7/8″
Open sealed box in designer

Ported

Net volume2.22 ft³ (63 L)
Tuning (Fb)26 Hz
Portslot 1 3/4 × 16 11/16″, 48 1/16″ long
Port velocity at 5,000 W175 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 13 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27.5 Hz
Qts0.41
Qes0.44
Qms7.25
Vas1.40 ft³
Re (one coil)1 Ω
Sd116 in²
Xmax1.57″
Vd182.6 in³ calc.
Mms668 g calc.
BL16.2 T·m calc.
EBP63 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.7 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power5,000 W

Mounting dimensions

Ø≈ 15 3/16″cutout ≈ Ø14″mounting depth ≈ 7 1/16″magnet Ø≈ 9 1/16″
Cutout diameter≈ 14″
Mounting depth≈ 7 1/16″

“≈” 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 B2 Audio 15″ models