Selenium WPU1207
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 46 Hz |
| Qts | 0.335 |
| Qes | 0.34 |
| Qms | 21.84 |
| Vas | 52 L |
| Sd | 495 cm² |
| Xmax | 4.3 mm |
| Re | 6.6 Ω |
| Bl | 21.1 T·m |
| Mms | 79.1 g |
| Pe | 500 W |
| Sensitivity | 94.5 dB |
Alignment hint
| EBP | 135 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 15 L |
EBP > 100: favours a ported (bass-reflex) 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 WPU1205 | 46 = | 0.331 = | 57 +5 | 4.3 = | 94.9 +0.4 | close | + | |
| Selenium 12WS600 | 46 = | 0.339 = | 60 +8 | 4.3 = | 94.7 +0.2 | close | + | |
| Radian 2312-8 | 46.7 +0.7 | 0.36 +0.02 | 51.3 -0.7 | 4.9 +0.6 | 93.6 -0.9 | close | + | |
| Eminence DEFINIMAX 4012HO | 51 +5 | 0.35 +0.01 | 53.801 +1.8 | 6.2 +1.9 | 94.8 +0.3 | close | + | |
| Eminence DEFINIMAX 4012 HO | 46 = | 0.356 +0.02 | 59.4 +7.4 | 6.2 +1.9 | 95.2 +0.7 | close | + | |
| Faital PRO 12HP1010 | 45 -1 | 0.34 +0.01 | 56.5 +4.5 | 9.25 +4.95 | 96 +1.5 | close | + | |
| Beyma POWER 12 vp | 42.7 -3.3 | 0.358 +0.02 | 53.1 +1.1 | 5.9 +1.6 | 96.2 +1.7 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Audax PR33LXT250 | 48.6 +2.6 | 0.311 -0.02 | 55 +3 | 3.9 -0.4 | 96.3 +1.8 | close | 250 W vs 500 W: lower power handling · Xmax 3.9 mm < 4.3 mm: lower excursion-limited SPL | + |
| Sica 12 PNS 4 | 41.7 -4.3 | 0.31 -0.03 | 50.2 -1.8 | 9.5 +5.2 | 94.5 = | close | + | |
| Precision Devices PD.123C01 | 46 = | 0.32 -0.02 | 66.82 +14.82 | 7 +2.7 | 94.9 +0.4 | close | + |
Compare the closest 3 against the WPU1207 →
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.