Audax PR30ST100
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 40 Hz |
| Qts | 0.521 |
| Qes | 0.69 |
| Qms | 2.13 |
| Vas | 138 L |
| Sd | 530 cm² |
| Xmax | 4.5 mm |
| Re | 5.6 Ω |
| Bl | 9.6 T·m |
| Mms | 45.2 g |
| Pe | 100 W |
| Sensitivity | 94.6 dB |
Alignment hint
| EBP | 58 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 163.9 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 |
|---|---|---|---|---|---|---|---|---|
| Audax LFP501 | 40 = | 0.521 = | 138 = | 4.5 = | 94.6 = | close | + | |
| MCM Electronics 55-2973 | 42 +2 | 0.481 -0.04 | 122.6 -15.4 | 5 +0.5 | 94.5 -0.1 | close | + | |
| Focal W31B | 40 = | 0.58 +0.06 | 125 -13 | 6 +1.5 | 95.8 +1.2 | close | + | |
| Visaton BZ300 4 Ohms | 36 -4 | 0.483 -0.04 | 129 -9 | 5 +0.5 | 95.7 +1.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| LaVoce LBASS12-15 | 38 -2 | 0.48 -0.04 | 160.93 +22.93 | 4.7 +0.2 | 95.5 +0.9 | close | + | |
| MCM Electronics 55-3212 | 38.5 -1.5 | 0.477 -0.04 | 122.6 -15.4 | 4.7 +0.2 | 96.6 +2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Monacor SP-305I | 40 = | 0.48 -0.04 | 118 -20 | 4 -0.5 | 93.6 -1 | close | Xmax 4 mm < 4.5 mm: lower excursion-limited SPL | + |
| Eminence LEGEND BP122 8 Ohms | 35 -5 | 0.537 +0.02 | 157.4 +19.4 | 6.2 +1.7 | 94.2 -0.4 | close | + | |
| Conrad PA 12 | 42.9 +2.9 | 0.462 -0.06 | 129.2 -8.8 | 4 -0.5 | 95.2 +0.6 | close | Xmax 4 mm < 4.5 mm: lower excursion-limited SPL | + |
| Celestion PULSE XL 12.20 | 35.1 -4.9 | 0.503 -0.02 | 153.3 +15.3 | 8.3 +3.8 | 94.2 -0.4 | close | + |
Compare the closest 3 against the PR30ST100 →
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.