PSI subwoofers
Thiele/Small parameters of PSI subwoofers (8″, 10″, 12″, 15″, 18″) and a recommended sealed and ported box for every model, in a free sub box calculator.
10 models
| Model | Size | Voice coils | Fs, Hz | Qts | Vas, ft³ | Xmax, in | RMS, W |
|---|---|---|---|---|---|---|---|
| PSI-8 | 8″ | DVC | 35 | 0.97 | 0.37 | 0.94 | 400 |
| Platform 1 10 D2 | 10″ | dual 2 Ω | 26.5 | 0.51 | 1.29 | 1.02 | 750 |
| Platform 1 12 D2 | 12″ | dual 2 Ω | 29.7 | 0.60 | 1.43 | 1.10 | 600 |
| Platform 2 12 D2 | 12″ | dual 2 Ω | 31.3 | 0.51 | 1.38 | 1.10 | 1,500 |
| Platform 3 12 | 12″ | DVC | 32.7 | 0.24 | 1.30 | 1.18 | 2,500 |
| Bass-line 15 | 15″ | 3 Ω | 33.1 | 0.67 | 3.39 | 0.87 | 600 |
| Platform 1 15 D2 | 15″ | dual 2 Ω | 26 | 0.74 | 4.04 | 1.10 | 600 |
| Platform 2 15 D2 | 15″ | dual 2 Ω | 26.6 | 0.55 | 4.47 | 1.10 | 1,500 |
| Platform 2 18 | 18″ | DVC | 26.4 | 0.60 | 8.02 | 1.10 | 1,500 |
| Platform 3 18 D2 | 18″ | dual 2 Ω | 27.5 | 0.30 | 8.16 | 1.18 | 2,500 |
Click a column header to sort. “!” means the model’s published specs don’t add up; details are on its page.