Audax PR33ST150
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 46 Hz |
| Qts | 0.327 |
| Qes | 0.36 |
| Qms | 3.6 |
| Vas | 90 L |
| Sd | 530 cm² |
| Xmax | 3.5 mm |
| Re | 5.8 Ω |
| Bl | 15.6 T·m |
| Mms | 52.4 g |
| Pe | 150 W |
| Sensitivity | 97.2 dB |
Alignment hint
| EBP | 128 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 24.5 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 |
|---|---|---|---|---|---|---|---|---|
| MC Kenzie C12.200L | 45 -1 | 0.296 -0.03 | 90 = | 4.2 +0.7 | 97.4 +0.2 | close | + | |
| B&C 12 FCX 76 | 47 +1 | 0.339 +0.01 | 82 -8 | 5 +1.5 | 97.6 +0.4 | close | + | |
| Ciare PW328 | 48 +2 | 0.32 -0.01 | 91 +1 | 3 -0.5 | 96.3 -0.9 | close | Xmax 3 mm < 3.5 mm: lower excursion-limited SPL | + |
| Sica 12 L1 2.5 SL | 47.5 +1.5 | 0.36 +0.03 | 81.8 -8.2 | 3.7 +0.2 | 97.3 +0.1 | close | + | |
| Beyma SM112/W | 42 -4 | 0.335 +0.01 | 90 = | 5.5 +2 | 96.1 -1.1 | close | + | |
| Monacor SP-12/200PA | 45 -1 | 0.328 = | 114 +24 | 4 +0.5 | 97.4 +0.2 | close | + | |
| Sica 12 N 3 PL | 46 = | 0.3 -0.03 | 87.9 -2.1 | 5.5 +2 | 98.5 +1.3 | close | + | |
| B&C 12 CXT | 49 +3 | 0.321 -0.01 | 91 +1 | 3 -0.5 | 98.6 +1.4 | close | Xmax 3 mm < 3.5 mm: lower excursion-limited SPL | + |
| Beyma 12MW/ND | 43 -3 | 0.328 = | 100 +10 | 6.5 +3 | 96.9 -0.3 | close | + | |
| JBL 2204H | 45 -1 | 0.35 +0.02 | 87.8 -2.2 | 5.6 +2.1 | 95.7 -1.5 | close | + |
Compare the closest 3 against the PR33ST150 →
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.