B&C 12NW76
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 43 Hz |
| Qts | 0.15 |
| Qes | 0.15 |
| Qms | 3.75 |
| Vas | 64.5 L |
| Sd | 522 cm² |
| Xmax | 8 mm |
| Re | 3.4 Ω |
| Bl | 22 T·m |
| Mms | 82 g |
| Pe | 500 W |
| Sensitivity | 98 dB |
Alignment hint
| EBP | 287 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 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 12NW76 | 40 -3 | 0.16 +0.01 | 76 +11.5 | 8 = | 98.5 +0.5 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Oberton 12NB400 | 43.58 +0.58 | 0.18 +0.03 | 70.45 +5.95 | 5.25 -2.75 | 98 = | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5.25 mm < 8 mm: lower excursion-limited SPL | + |
| Oberton 12NMB600 | 41.03 -1.97 | 0.134 -0.02 | 70.8 +6.3 | 5.25 -2.75 | 99 +1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5.25 mm < 8 mm: lower excursion-limited SPL | + |
| 18 Sound 12ND940 | 49 +6 | 0.2 +0.05 | 64.8 +0.3 | 7.6 -0.4 | 100 +2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.6 mm < 8 mm: lower excursion-limited SPL | + |
| B&C 12 NW 76 | 40 -3 | 0.163 +0.01 | 76 +11.5 | 4.8 -3.2 | 98.3 +0.3 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 4.8 mm < 8 mm: lower excursion-limited SPL | + |
| Beyma 12"P80/Fe V2 | 48 +5 | 0.21 +0.06 | 61 -3.5 | 7.5 -0.5 | 99 +1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.5 mm < 8 mm: lower excursion-limited SPL | + |
| Oberton 12NB450 | 46.46 +3.46 | 0.204 +0.05 | 72.57 +8.07 | 7.75 -0.25 | 100 +2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.75 mm < 8 mm: lower excursion-limited SPL | + |
| RCF LF12P903 | 47 +4 | 0.23 +0.08 | 65 +0.5 | 7 -1 | 97.8 -0.2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7 mm < 8 mm: lower excursion-limited SPL | + |
| Beyma 12P80ND V2 | 50 +7 | 0.163 +0.01 | 65 +0.5 | 4.5 -3.5 | 100.7 +2.7 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 8 mm: lower excursion-limited SPL | + |
| JBL 2254J | 46.6 +3.6 | 0.159 +0.01 | 73.6 +9.1 | 3.9 -4.1 | 97 -1 | usable | 16 Ω vs 4 Ω: amp load changes · Xmax 3.9 mm < 8 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12NW76 →
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.