Davis 31TPA vp nº1 dats v2
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 41.7 Hz |
| Qts | 0.4 |
| Qes | 0.483 |
| Qms | 2.328 |
| Vas | 114.9 L |
| Sd | 535 cm² |
| Xmax | 4.8 mm |
| Re | 6.1 Ω |
| Bl | 13 T·m |
| Mms | 50.8 g |
| Pe | 150 W |
| Sensitivity | 95.5 dB |
Alignment hint
| EBP | 86 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 54.1 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma SM212 vp Nº2 | 41.7 = | 0.41 +0.01 | 110.7 -4.2 | 7.3 +2.5 | 95.2 -0.3 | close | + | |
| Beyma 12LW30 | 45 +3.3 | 0.404 = | 110 -4.9 | 5 +0.2 | 97 +1.5 | close | + | |
| Faital PRO 12PR320-08 v2022 | 42 +0.3 | 0.371 -0.03 | 113 -1.9 | 7.1 +2.3 | 97.1 +1.6 | close | + | |
| Faital PRO 12PR320 | 42 +0.3 | 0.37 -0.03 | 113.3 -1.6 | 7.37 +2.57 | 97 +1.5 | close | + | |
| Beyma SM212 v2018 | 43 +1.3 | 0.381 -0.02 | 103 -11.9 | 7 +2.2 | 96.6 +1.1 | close | + | |
| Conrad CPA12-100FR | 41.7 = | 0.436 +0.04 | 109.5 -5.4 | 4 -0.8 | 94.5 -1 | close | 100 W vs 150 W: lower power handling · Xmax 4 mm < 4.8 mm: lower excursion-limited SPL | + |
| Eminence DELTALITE II 2512 | 44 +2.3 | 0.406 +0.01 | 134.9 +20 | 4.9 +0.1 | 97.9 +2.4 | close | + | |
| Eminence DELTALITE II 2512 v2014 | 44 +2.3 | 0.406 +0.01 | 134.9 +20 | 4.9 +0.1 | 97.9 +2.4 | close | + | |
| Beyma SM212-N2 | 43 +1.3 | 0.372 -0.03 | 103 -11.9 | 6.9 +2.1 | 96.7 +1.2 | close | + | |
| Davis 31TCA12 vp2 | 46.4 +4.7 | 0.449 +0.05 | 113.1 -1.8 | 5.7 +0.9 | 96.4 +0.9 | close | + |
Compare the closest 3 against the 31TPA vp nº1 dats v2 →
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.