B2 Audio RAGE XL12 D2
12″ subwoofer · dual 2 Ω · 3,500 W RMS
Fs 31 HzQts 0.59Vas 0.78 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 | 0.95 ft³ (27 L) |
|---|---|
| Qtc | 0.80 |
| Fc | 42 Hz |
| F3 (−3 dB, no cabin gain) | 39 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 12 11/16″ |
Ported
| Net volume | 2.65 ft³ (75 L) |
|---|---|
| Tuning (Fb) | 25 Hz |
| Port | slot 2 9/16 × 14 5/16″, 54 3/16″ long |
| Port velocity at 3,500 W | 131 ft/s |
| F3 (−3 dB, no cabin gain) | 22 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 18 1/8″ |
Thiele/Small parameters
| Fs | 31 Hz |
|---|---|
| Qts | 0.59 |
| Qes | 0.66 |
| Qms | 5.99 |
| Vas | 0.78 ft³ |
| Re (one coil) | 1.9 Ω |
| Sd | 73.3 in² |
| Xmax | 1.18″ |
| Vd | 86.5 in³ calc. |
| Mms | 376 g calc. |
| BL | 14.5 T·m calc. |
| EBP | 47 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 82 dB calc. |
General
| Size | 12″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 3,500 W |
Mounting dimensions
| Cutout diameter | 11 1/8″ |
|---|---|
| Mounting depth | ≈ 5 7/8″ |
| Overall diameter | 12 7/16″ |
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 12″ models
- B2 Audio HN12v3 D1 12″ · dual 1 Ω
- B2 Audio HN12v3 D2 12″ · dual 2 Ω
- B2 Audio IS12 D2 v3 12″ · dual 2 Ω
- B2 Audio IS12 D4 v3 12″ · dual 4 Ω
- B2 Audio RAGE12 D2 v4 12″ · dual 2 Ω