Selenium 18SW3P
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 37 Hz |
| Qts | 0.41 |
| Qes | 0.43 |
| Qms | 11.51 |
| Vas | 215 L |
| Sd | 1194 cm² |
| Xmax | 6.75 mm |
| Bl | 23.4 T·m |
| Mms | 175.8 g |
| Pe | 800 W |
| Sensitivity | 96 dB |
Alignment hint
| EBP | 86 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 108.9 L |
EBP 50-100: works in either a sealed or ported alignment.
Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.
Substitute candidates
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| P.Audio FL-18ELF | 36 -1 | 0.39 -0.02 | 209.8 -5.2 | 8 +1.25 | 95.6 -0.4 | close | + | |
| B&C 18 TBX 100 (prodance) | 36.6 -0.4 | 0.406 = | 198 -17 | 9 +2.25 | 97.4 +1.4 | close | + | |
| DAS Audio 18LXN | 38.5 +1.5 | 0.45 +0.04 | 213.7 -1.3 | 8 +1.25 | 97.2 +1.2 | close | + | |
| Selenium 18SW2P | 36 -1 | 0.419 +0.01 | 179 -36 | 6.5 -0.25 | 96.4 +0.4 | close | 600 W vs 800 W: lower power handling · Xmax 6.5 mm < 6.75 mm: lower excursion-limited SPL | + |
| Fane 18XLS | 36 -1 | 0.407 = | 187 -28 | 9.3 +2.55 | 97 +1 | close | + | |
| Fane COLOSSUS 18XLS | 36 -1 | 0.407 = | 187 -28 | 9.3 +2.55 | 97 +1 | close | + | |
| Faital PRO 18HP1042 | 38 +1 | 0.41 = | 191.9 -23.1 | 9 +2.25 | 98 +2 | close | + | |
| Beyma 18LEX1600/ND-8 | 35 -2 | 0.39 -0.02 | 205 -10 | 10.4 +3.65 | 96.8 +0.8 | close | + | |
| Beyma 118Nd/W | 36 -1 | 0.398 -0.01 | 249 +34 | 7 +0.25 | 97.7 +1.7 | close | + | |
| Beyma 18G550 | 36 -1 | 0.374 -0.04 | 210 -5 | 8.1 +1.35 | 97.8 +1.8 | close | + |
Compare the closest 3 against the 18SW3P →
Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.
Used in enclosures (0)
No enclosure in the catalog uses this driver yet.