B&C 8NW51
Thiele-Small parameters
| Nominal size | 8" |
|---|---|
| Impedance | 4 Ω |
| Fs | 76 Hz |
| Qts | 0.25 |
| Qes | 0.26 |
| Qms | 5.3 |
| Vas | 10.6 L |
| Sd | 220 cm² |
| Xmax | 6 mm |
| Re | 2.5 Ω |
| Bl | 11.2 T·m |
| Mms | 27 g |
| Pe | 200 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 292 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 1.5 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 WAF082.01 | 76 = | 0.21 -0.04 | 10.21 -0.39 | 5.8 -0.2 | 97 = | close | 8 Ω vs 4 Ω: amp load changes · Xmax 5.8 mm < 6 mm: lower excursion-limited SPL | + |
| B&C 8NDL64 | 80 +4 | 0.25 = | 9.6 -1 | 4.5 -1.5 | 97 = | close | 8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 6 mm: lower excursion-limited SPL | + |
| LaVoce WAN082.02 | 80 +4 | 0.23 -0.02 | 8.97 -1.63 | 5.8 -0.2 | 96.5 -0.5 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 5.8 mm < 6 mm: lower excursion-limited SPL | + |
| 18 Sound 8NTLW2000 | 74 -2 | 0.26 +0.01 | 11.3 +0.7 | 4.4 -1.6 | 96.5 -0.5 | close | 16 Ω vs 4 Ω: amp load changes · Xmax 4.4 mm < 6 mm: lower excursion-limited SPL | + |
| B&C 8FW51 | 74 -2 | 0.21 -0.04 | 12 +1.4 | 6 = | 97 = | close | 8 Ω vs 4 Ω: amp load changes | + |
| B&C 8NDL64 | 73 -3 | 0.24 -0.01 | 11.8 +1.2 | 4.5 -1.5 | 97 = | close | 16 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 6 mm: lower excursion-limited SPL | + |
| Oberton 8NMB250v4 | 82.03 +6.03 | 0.258 +0.01 | 10.89 +0.29 | 4.5 -1.5 | 96 -1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 4.5 mm < 6 mm: lower excursion-limited SPL | + |
| B&C 8CLA64 | 71 -5 | 0.24 -0.01 | 12.5 +1.9 | 5.3 -0.7 | 96 -1 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 5.3 mm < 6 mm: lower excursion-limited SPL | + |
| Oberton 8NB201 | 70.56 -5.44 | 0.245 -0.01 | 12.54 +1.94 | 5.25 -0.75 | 95 -2 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 5.25 mm < 6 mm: lower excursion-limited SPL | + |
| Sica 8 K 3 PL | 68.1 -7.9 | 0.25 = | 12.2 +1.6 | 5 -1 | 95.1 -1.9 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 5 mm < 6 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 8NW51 →
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.