Audax PR33S100 vp1
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36.8 Hz |
| Qts | 0.164 |
| Qes | 0.17 |
| Qms | 4.39 |
| Vas | 124.3 L |
| Sd | 530 cm² |
| Xmax | 3.8 mm |
| Re | 5.87 Ω |
| Bl | 21.8 T·m |
| Mms | 59.3 g |
| Pe | 200 W |
| Sensitivity | 98.9 dB |
Alignment hint
| EBP | 216 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 7.1 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 |
|---|---|---|---|---|---|---|---|---|
| BMS 12N820 | 37.8 +1 | 0.16 = | 98.7 -25.6 | 4.5 +0.7 | 98 -0.9 | close | + | |
| PD PD 123C001 | 35 -1.8 | 0.144 -0.02 | 122 -2.3 | 6.4 +2.6 | 99.1 +0.2 | close | + | |
| Precision Devices PD 123C001 | 35 -1.8 | 0.144 -0.02 | 122 -2.3 | 6.4 +2.6 | 99.1 +0.2 | close | + | |
| Beyma LIBERTY | 37 +0.2 | 0.167 = | 130 +5.7 | 2.5 -1.3 | 99.3 +0.4 | close | Xmax 2.5 mm < 3.8 mm: lower excursion-limited SPL | + |
| Audax PR33S100 vp2 | 35 -1.8 | 0.136 -0.03 | 136.9 +12.6 | 3.8 = | 99.6 +0.7 | close | + | |
| Monacor SP-30PAX | 46 +9.2 | 0.164 = | 130 +5.7 | 3.9 +0.1 | 102.3 +3.4 | usable | + | |
| B&C 12CXN76 | 42 +5.2 | 0.19 +0.03 | 120 -4.3 | 6 +2.2 | 98.3 -0.6 | usable | + | |
| B&C 12 CXN 76 | 42 +5.2 | 0.195 +0.03 | 120 -4.3 | 4 +0.2 | 100.5 +1.6 | usable | + | |
| B&C 12 HCX 76 | 42 +5.2 | 0.195 +0.03 | 118.9 -5.4 | 4 +0.2 | 100.5 +1.6 | usable | + | |
| 18 Sound 12MB600 | 44 +7.2 | 0.18 +0.02 | 115 -9.3 | 4.5 +0.7 | 101 +2.1 | usable | + |
Compare the closest 3 against the PR33S100 vp1 →
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.