Resilient Sounds Onyx 12 D1
12″ subwoofer · dual 1 Ω · 2,500 W RMS
Fs 44.4 HzQts 0.28Vas 0.56 ft³Xmax 1.18″
Recommended box
For a sedan, one sub, 2,500 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 | 0.90 ft³ (25.5 L) |
|---|---|
| Qtc | 0.35 |
| Fc | 57 Hz |
| F3 (−3 dB, no cabin gain) | 142 Hz |
| Example box (outside) | 14 9/16″ × 14 9/16″ × 11 1/2″ |
Ported
| Net volume | 1.45 ft³ (41 L) |
|---|---|
| Tuning (Fb) | 32 Hz |
| Port | round port Ø2 1/2″, 7 1/8″ long |
| Port velocity at 2,500 W | 690 ft/s |
| F3 (−3 dB, no cabin gain) | 127 Hz |
| Example box (outside) | 20 7/16″ × 15 3/4″ × 11 7/16″ |
Thiele/Small parameters
| Fs | 44.4 Hz |
|---|---|
| Qts | 0.28 |
| Qes | 0.31 |
| Qms | 2.69 |
| Vas | 0.56 ft³ |
| Re (one coil) | 1 Ω |
| Sd | ≈ 76 in² |
| Xmax | 1.18″ |
| EBP | 143 — suits ported calc. |
| Sensitivity, 1 W / 1 m | 88.5 dB calc. |
General
| Size | 12″ |
|---|---|
| Voice coils | dual 1 Ω |
| RMS power | 2,500 W |
Mounting dimensions
| Cutout diameter | 11 1/4″ |
|---|---|
| Mounting depth | 9″ |
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 Resilient Sounds 12″ models
- Resilient Sounds Gold 12 D4 12″ · dual 4 Ω
- Resilient Sounds Platinum 12 D1 12″ · dual 1 Ω
- Resilient Sounds RS 12 D4 12″ · dual 4 Ω
- Resilient Sounds RS 12 V2 D4 12″ · dual 4 Ω