SEAS 33F-WKA
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 22 Hz |
| Qts | 0.209 |
| Qes | 0.22 |
| Qms | 4.2 |
| Vas | 310 L |
| Sd | 550 cm² |
| Xmax | 5 mm |
| Re | 6 Ω |
| Bl | 16.4 T·m |
| Mms | 71.6 g |
| Pe | 70 W |
| Sensitivity | 95 dB |
Alignment hint
| EBP | 100 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 29.7 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 |
|---|---|---|---|---|---|---|---|---|
| Monacor SPH-300TC v1 | 23 +1 | 0.198 -0.01 | 315 +5 | 4 -1 | 95.4 +0.4 | close | Xmax 4 mm < 5 mm: lower excursion-limited SPL | + |
| Monacor SPH-315 | 22 = | 0.235 +0.03 | 330 +20 | 4.5 -0.5 | 94.5 -0.5 | close | Xmax 4.5 mm < 5 mm: lower excursion-limited SPL | + |
| Focal AUDIOM 12V | 25 +3 | 0.203 -0.01 | 318 +8 | 6 +1 | 97 +2 | close | + | |
| AER STUDIO BASS | 21 -1 | 0.237 +0.03 | 360 +50 | 5.2 +0.2 | 94.3 -0.7 | close | + | |
| Siare 31TE | 23 +1 | 0.265 +0.06 | 322 +12 | 5 = | 95.1 +0.1 | close | + | |
| Focal AUDIOM 12VX | 23.5 +1.5 | 0.202 -0.01 | 238 -72 | 6 +1 | 94.5 -0.5 | close | + | |
| Vifa M30W0-49-08 | 21 -1 | 0.225 +0.02 | 400 +90 | 6 +1 | 95.2 +0.2 | close | + | |
| Monacor SPP-300/AD | 23 +1 | 0.265 +0.06 | 305 -5 | 5 = | 93.9 -1.1 | close | + | |
| Visaton W300S4 | 23 +1 | 0.253 +0.04 | 300 -10 | 7 +2 | 96.4 +1.4 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Monacor SPH-300TC vp 1 seule bobine | 23 +1 | 0.239 +0.03 | 290 -20 | 4 -1 | 94.3 -0.7 | usable | Xmax 4 mm < 5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 33F-WKA →
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.