Resilient Sounds Platinum 18 D1
18″ subwoofer · dual 1 Ω · 2,000 W RMS
Fs 25.9 HzQts 0.34Vas 5.79 ft³Xmax 1.18″
Recommended box
For a sedan, one sub, 2,000 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 | 2.14 ft³ (60.5 L) |
|---|---|
| Qtc | 0.65 |
| Fc | 50 Hz |
| F3 (−3 dB, no cabin gain) | 58 Hz |
| Example box (outside) | 20 1/16″ × 20 1/16″ × 13 7/16″ |
Ported
| Net volume | 3.78 ft³ (107 L) |
|---|---|
| Tuning (Fb) | 32 Hz |
| Port | slot 3 3/8 × 19 7/16″, 38 5/16″ long |
| Port velocity at 2,000 W | 63 ft/s |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 20 7/8″ × 18 3/8″ |
Thiele/Small parameters
| Fs | 25.9 Hz |
|---|---|
| Qts | 0.34 |
| Qes | 0.38 |
| Qms | 2.89 |
| Vas | 5.79 ft³ |
| Re (one coil) | 1 Ω |
| Sd | 179.1 in² |
| Xmax | 1.18″ |
| Vd | 211.5 in³ calc. |
| Mms | 435 g calc. |
| BL | 13.7 T·m calc. |
| EBP | 68 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 90.8 dB calc. |
General
| Size | 18″ |
|---|---|
| Voice coils | dual 1 Ω |
| RMS power | 2,000 W |
Mounting dimensions
| Cutout diameter | 16 3/4″ |
|---|---|
| Mounting depth | 11″ |
| Overall diameter | 18 1/2″ |
Cone area (Sd) calculated from Fs, Vas and Mms: 179 in².
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 18″ models
- Resilient Sounds Team 18 D1 18″ · dual 1 Ω