B2 Audio RAGE XL15 D2
15″ subwoofer · dual 2 Ω · 3,500 W RMS
Fs 27 HzQts 0.65Vas 1.99 ft³Xmax 1.18″
Recommended box
For a sedan, one sub, 3,500 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 volume | 2.72 ft³ (77 L) |
|---|---|
| Qtc | 0.86 |
| Fc | 36 Hz |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 11 3/8″ |
Ported
| Net volume | 4.59 ft³ (130 L) |
|---|---|
| Tuning (Fb) | 25 Hz |
| Port | slot 5 1/2 × 16 11/16″, 77 13/16″ long |
| Port velocity at 3,500 W | 64 ft/s |
| F3 (−3 dB, no cabin gain) | 21 Hz |
| Example box (outside) | 31 1/2″ × 18 1/8″ × 33 1/2″ |
Thiele/Small parameters
| Fs | 27 Hz |
|---|---|
| Qts | 0.65 |
| Qes | 0.74 |
| Qms | 5.5 |
| Vas | 1.99 ft³ |
| Re (one coil) | 1.9 Ω |
| Sd | 118.6 in² |
| Xmax | 1.18″ |
| Vd | 140.1 in³ calc. |
| Mms | 511 g calc. |
| BL | 14.9 T·m calc. |
| EBP | 36 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 83.8 dB calc. |
General
| Size | 15″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 3,500 W |
Mounting dimensions
| Cutout diameter | 14 1/4″ |
|---|---|
| Mounting depth | ≈ 7 1/16″ |
| Overall diameter | 15 1/2″ |
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 B2 Audio 15″ models
- B2 Audio HN15v3 D1 15″ · dual 1 Ω
- B2 Audio IS15 D2 v3 15″ · dual 2 Ω
- B2 Audio IS15 D4 v3 15″ · dual 4 Ω
- B2 Audio RAGE15 D2 v3 15″ · dual 2 Ω
- B2 Audio RAMPAGE15 D1 15″ · dual 1 Ω
- B2 Audio RIOT15 D2 v2 15″ · dual 2 Ω