Beyma 12BR70 vp
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 49.1 Hz |
| Qts | 0.461 |
| Qes | 0.538 |
| Qms | 3.24 |
| Vas | 95.8 L |
| Sd | 540 cm² |
| Xmax | 4 mm |
| Re | 6.26 Ω |
| Bl | 12.7 T·m |
| Mms | 44.8 g |
| Pe | 125 W |
| Sensitivity | 96.3 dB |
Alignment hint
| EBP | 91 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 70.8 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 330 | 48.1 -1 | 0.468 +0.01 | 93.7 -2.1 | 4.5 +0.5 | 95.9 -0.4 | close | + | |
| B&C 12 HPL 51 | 51 +1.9 | 0.479 +0.02 | 96 +0.2 | 4 = | 97.3 +1 | close | + | |
| Davis 31TCA12 v2015 | 48.5 -0.6 | 0.442 -0.02 | 92.3 -3.5 | 5 +1 | 96.5 +0.2 | close | + | |
| PHL Audio 4530 vp clio p | 47.1 -2 | 0.46 = | 93.2 -2.6 | 6 +2 | 95.7 -0.6 | close | + | |
| Davis 31TPA vp nº2 dats v2 | 46.4 -2.7 | 0.437 -0.02 | 96.4 +0.6 | 4.4 +0.4 | 95.8 -0.5 | close | + | |
| Davis 31TCA12 vp | 49.1 = | 0.459 = | 107.8 +12 | 5.5 +1.5 | 96.9 +0.6 | close | + | |
| Monacor SP-12 vp nº1 | 45.8 -3.3 | 0.458 = | 104.3 +8.5 | 3.9 -0.1 | 95.6 -0.7 | close | Xmax 3.9 mm < 4 mm: lower excursion-limited SPL | + |
| Davis 31TCA12 vp2015 n2 | 48.5 -0.6 | 0.471 +0.01 | 85.1 -10.7 | 4.9 +0.9 | 95.6 -0.7 | close | + | |
| Faital PRO 12PR300 | 50 +0.9 | 0.49 +0.03 | 89.7 -6.1 | 4.92 +0.92 | 97 +0.7 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Eminence DELTA 12 LF v1 | 45 -4.1 | 0.424 -0.04 | 95.5 -0.3 | 4.6 +0.6 | 96.1 -0.2 | close | + |
Compare the closest 3 against the 12BR70 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.