B&C 12 NDL 76
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 50 Hz |
| Qts | 0.2 |
| Qes | 0.21 |
| Qms | 4.2 |
| Vas | 73 L |
| Sd | 522 cm² |
| Xmax | 4.3 mm |
| Re | 5.3 Ω |
| Bl | 20.5 T·m |
| Mms | 53 g |
| Pe | 400 W |
| Sensitivity | 100.1 dB |
Alignment hint
| EBP | 238 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 6.3 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 12NDL76 | 50 = | 0.2 = | 73 = | 7 +2.7 | 100 -0.1 | close | + | |
| Beyma 12P80FE V2 | 50 = | 0.201 = | 66.8 -6.2 | 5.2 +0.9 | 99.9 -0.2 | close | + | |
| B&C 12NDL76 | 50 = | 0.19 -0.01 | 70 -3 | 6 +1.7 | 100 -0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 12 MH 32 | 52 +2 | 0.194 -0.01 | 71 -2 | 4.1 -0.2 | 100.7 +0.6 | close | Xmax 4.1 mm < 4.3 mm: lower excursion-limited SPL | + |
| PHL Audio 4050 | 49 -1 | 0.197 = | 84 +11 | 4.1 -0.2 | 100.1 = | close | Xmax 4.1 mm < 4.3 mm: lower excursion-limited SPL | + |
| Oberton 12NXL400 | 48.6 -1.4 | 0.203 = | 79.24 +6.24 | 5.25 +0.95 | 101 +0.9 | close | + | |
| 18 Sound 12MB710 | 46 -4 | 0.2 = | 81 +8 | 5 +0.7 | 100 -0.1 | close | + | |
| 18 Sound 12MB720 | 46 -4 | 0.2 = | 81 +8 | 5 +0.7 | 100 -0.1 | close | + | |
| 18 Sound 12MB810 | 46 -4 | 0.2 = | 81 +8 | 5 +0.7 | 100 -0.1 | close | + | |
| Oberton 12NB450 | 46.46 -3.54 | 0.204 = | 72.57 -0.43 | 7.75 +3.45 | 100 -0.1 | close | + |
Compare the closest 3 against the 12 NDL 76 →
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.