Selenium WPU1805
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.447 |
| Qes | 0.46 |
| Qms | 15.43 |
| Vas | 316 L |
| Sd | 1190 cm² |
| Xmax | 4.3 mm |
| Re | 6.7 Ω |
| Bl | 20.7 T·m |
| Mms | 137.7 g |
| Pe | 450 W |
| Sensitivity | 97.1 dB |
Alignment hint
| EBP | 74 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 210.3 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 |
|---|---|---|---|---|---|---|---|---|
| Selenium 18SWS1100 | 34 = | 0.447 = | 316 = | 9.3 +5 | 97.8 +0.7 | close | + | |
| Sica 18 F 3 CP | 31.6 -2.4 | 0.44 -0.01 | 321 +5 | 6.5 +2.2 | 96.9 -0.2 | close | + | |
| Selenium WPU1807 | 31 -3 | 0.475 +0.03 | 318 +2 | 4.3 = | 95.6 -1.5 | close | + | |
| Beyma SM118/N | 36 +2 | 0.492 +0.04 | 300 -16 | 5.5 +1.2 | 97.2 +0.1 | close | + | |
| Mivoc WS 1865 C-4 | 35 +1 | 0.44 -0.01 | 270 -46 | 5 +0.7 | 95.7 -1.4 | close | 4 Ω vs 8 Ω: amp load changes · 300 W vs 450 W: lower power handling | + |
| Eminence KILOMAX PRO 18 A v2016 | 32 -2 | 0.467 +0.02 | 331.5 +15.5 | 10 +5.7 | 97.4 +0.3 | close | + | |
| Beyma 18G40 | 31 -3 | 0.407 -0.04 | 323 +7 | 7 +2.7 | 96.9 -0.2 | close | + | |
| Selenium 18WS600 | 33 -1 | 0.43 -0.02 | 375 +59 | 3.8 -0.5 | 96.7 -0.4 | close | Xmax 3.8 mm < 4.3 mm: lower excursion-limited SPL | + |
| P.Audio E18-400S | 33 -1 | 0.498 +0.05 | 284.4 -31.6 | 5 +0.7 | 96.1 -1 | close | + | |
| SB Audience ROSSO-18SW650 | 31 -3 | 0.418 -0.03 | 304.3 -11.7 | 9 +4.7 | 97.2 +0.1 | close | + |
Compare the closest 3 against the WPU1805 →
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.