SEAS 33F-WB
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 27 Hz |
| Qts | 0.348 |
| Qes | 0.4 |
| Qms | 2.7 |
| Vas | 280 L |
| Sd | 550 cm² |
| Xmax | 5 mm |
| Re | 6 Ω |
| Bl | 11.6 T·m |
| Mms | 52.6 g |
| Pe | 80 W |
| Sensitivity | 94.6 dB |
Alignment hint
| EBP | 68 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 89.5 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 |
|---|---|---|---|---|---|---|---|---|
| Ciare HW321 | 27 = | 0.33 -0.02 | 205 -75 | 5 = | 93.8 -0.8 | close | + | |
| Philips AD12200/W8 | 24 -3 | 0.303 -0.04 | 287.4 +7.4 | 5 = | 93.6 -1 | close | + | |
| Klipsch K24K | 24 -3 | 0.323 -0.02 | 281 +1 | 4 -1 | 94.3 -0.3 | close | Xmax 4 mm < 5 mm: lower excursion-limited SPL | + |
| Crites Speakers CW1228 | 27.7 +0.7 | 0.277 -0.07 | 286.6 +6.6 | 6.4 +1.4 | 96.3 +1.7 | usable | + | |
| Focal 12V 726DB | 25.9 -1.1 | 0.354 +0.01 | 210.5 -69.5 | 8.5 +3.5 | 96 +1.4 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Samy Speaker LW1200 | 30.7 +3.7 | 0.36 +0.01 | 210 -70 | 6 +1 | 94.3 -0.3 | usable | + | |
| Audiotechnology FLEXUNIT 12B772510 | 25 -2 | 0.299 -0.05 | 250 -30 | 8.6 +3.6 | 94.3 -0.3 | usable | + | |
| JBL 335151-001 | 28.2 +1.2 | 0.355 +0.01 | 177.3 -102.7 | 5 = | 93.8 -0.8 | usable | + | |
| Sphynx SP-W12 | 28 +1 | 0.415 +0.07 | 258 -22 | 4 -1 | 93.9 -0.7 | usable | Xmax 4 mm < 5 mm: lower excursion-limited SPL | + |
| Davis 31TK12-M vp | 27.8 +0.8 | 0.416 +0.07 | 376 +96 | 5 = | 94.5 -0.1 | usable | + |
Compare the closest 3 against the 33F-WB →
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.