B&C 12NBX100
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 40 Hz |
| Qts | 0.22 |
| Qes | 0.23 |
| Qms | 7.05 |
| Vas | 46.5 L |
| Sd | 531 cm² |
| Xmax | 10 mm |
| Re | 3.6 Ω |
| Bl | 23.04 T·m |
| Mms | 133 g |
| Pe | 1000 W |
| Sensitivity | 94 dB |
Alignment hint
| EBP | 174 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 5 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 |
|---|---|---|---|---|---|---|---|---|
| Lavoce WAF124.01 | 42 +2 | 0.22 = | 49 +2.5 | 9 -1 | 93.8 -0.2 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 10 mm: lower excursion-limited SPL | + |
| B&C 12NBX100 | 41 +1 | 0.22 = | 51 +4.5 | 10 = | 96 +2 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Lavoce WAN124.01 | 40 = | 0.21 -0.01 | 51 +4.5 | 8.5 -1.5 | 93.6 -0.4 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 8.5 mm < 10 mm: lower excursion-limited SPL | + |
| B&C 12TBX100 | 44 +4 | 0.23 +0.01 | 41.1 -5.4 | 9 -1 | 93 -1 | close | Xmax 9 mm < 10 mm: lower excursion-limited SPL | + |
| B&C 12NW100 | 42 +2 | 0.2 -0.02 | 44 -2.5 | 9 -1 | 96 +2 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 10 mm: lower excursion-limited SPL | + |
| Beyma 12"LEX1300Nd | 45 +5 | 0.24 +0.02 | 43 -3.5 | 11 +1 | 96 +2 | close | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 12NW100 | 44 +4 | 0.2 -0.02 | 43.3 -3.2 | 9 -1 | 92 -2 | usable | Xmax 9 mm < 10 mm: lower excursion-limited SPL | + |
| 18 Sound 12NLW9410 | 42 +2 | 0.26 +0.04 | 55 +8.5 | 11 +1 | 95 +1 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 12 NBX 100 | 41 +1 | 0.226 +0.01 | 51 +4.5 | 6.6 -3.4 | 95.6 +1.6 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 6.6 mm < 10 mm: lower excursion-limited SPL | + |
| Faital PRO 12FX600 | 48 +8 | 0.24 +0.02 | 44.4 -2.1 | 9.9 -0.1 | 97 +3 | usable | 8 Ω vs 4 Ω: amp load changes · 700 W vs 1000 W: lower power handling · Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12NBX100 →
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.