Audax HD33S66 vp
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 28.8 Hz |
| Qts | 0.272 |
| Qes | 0.309 |
| Qms | 2.286 |
| Vas | 441.3 L |
| Sd | 517.2 cm² |
| Xmax | 9.9 mm |
| Re | 6.16 Ω |
| Bl | 9.7 T·m |
| Mms | 25.9 g |
| Pe | 150 W |
| Sensitivity | 98.5 dB |
Alignment hint
| EBP | 93 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 76.6 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 |
|---|---|---|---|---|---|---|---|---|
| Davis 31TCA12W | 27 -1.8 | 0.283 +0.01 | 335 -106.3 | 6 -3.9 | 96.2 -2.3 | usable | Xmax 6 mm < 9.9 mm: lower excursion-limited SPL | + |
| Crites Speakers CW1228 | 27.7 -1.1 | 0.277 +0.01 | 286.6 -154.7 | 6.4 -3.5 | 96.3 -2.2 | usable | Xmax 6.4 mm < 9.9 mm: lower excursion-limited SPL | + |
| Altec 414 B vp | 29 +0.2 | 0.256 -0.02 | 377 -64.3 | 4 -5.9 | 97.3 -1.2 | usable | 16 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 9.9 mm: lower excursion-limited SPL | + |
| Hifonics MXZ 12D4 | 34 +5.2 | 0.398 +0.13 | 450 +8.7 | 11 +1.1 | 102.1 +3.6 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Siare 31TE V2 | 23 -5.8 | 0.265 -0.01 | 387 -54.3 | 5 -4.9 | 95.9 -2.6 | usable | Xmax 5 mm < 9.9 mm: lower excursion-limited SPL | + |
| Visaton W300S4 | 23 -5.8 | 0.253 -0.02 | 300 -141.3 | 7 -2.9 | 96.4 -2.1 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 9.9 mm: lower excursion-limited SPL | + |
| Monacor SP-305PA | 35 +6.2 | 0.283 +0.01 | 315 -126.3 | 5.3 -4.6 | 99.8 +1.3 | usable | Xmax 5.3 mm < 9.9 mm: lower excursion-limited SPL | + |
| Jensen RS12045SW | 25 -3.8 | 0.3 +0.03 | 220 -221.3 | 11 +1.1 | 95.6 -2.9 | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Audiotechnology FLEXUNIT 12B772510 | 25 -3.8 | 0.299 +0.03 | 250 -191.3 | 8.6 -1.3 | 94.3 -4.2 | usable | Xmax 8.6 mm < 9.9 mm: lower excursion-limited SPL | + |
| Ciare CW322 | 22 -6.8 | 0.251 -0.02 | 355 -86.3 | 5 -4.9 | 97.4 -1.1 | usable | 4 Ω vs 8 Ω: amp load changes · 100 W vs 150 W: lower power handling · Xmax 5 mm < 9.9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the HD33S66 vp →
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.