B2 Audio RIOT15 D2 v2
15″ subwoofer · dual 2 Ω · 1,000 W RMS
Fs 31 HzQts 0.72Vas 2.12 ft³Xmax 0.71″
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 volume | 2.97 ft³ (84 L) |
|---|---|
| Qtc | 0.95 |
| Fc | 41 Hz |
| F3 (−3 dB, no cabin gain) | 34 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 12 1/2″ |
Ported
| Net volume | 5.05 ft³ (143 L) |
|---|---|
| Tuning (Fb) | 28 Hz |
| Port | slot 3 3/8 × 16 5/16″, 30 3/4″ long |
| Port velocity at 1,000 W | 65 ft/s |
| F3 (−3 dB, no cabin gain) | 23 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 23 13/16″ |
Thiele/Small parameters
| Fs | 31 Hz |
|---|---|
| Qts | 0.72 |
| Qes | 0.8 |
| Qms | 7.5 |
| Vas | 2.12 ft³ |
| Re (one coil) | 1.8 Ω |
| Sd | 130.2 in² |
| Xmax | 0.71″ |
| Vd | 92.2 in³ calc. |
| Mms | 438 g calc. |
| BL | 13.9 T·m calc. |
| EBP | 39 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 85.5 dB calc. |
General
| Size | 15″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 1,000 W |
Mounting dimensions
| Cutout diameter | 13 3/4″ |
|---|---|
| Mounting depth | 8 1/8″ |
| Overall diameter | 15 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 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 RAGE XL15 D2 15″ · dual 2 Ω
- B2 Audio RAGE15 D2 v3 15″ · dual 2 Ω
- B2 Audio RAMPAGE15 D1 15″ · dual 1 Ω