B&C 18NBX100
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 35 Hz |
| Qts | 0.38 |
| Qes | 0.4 |
| Qms | 5.6 |
| Vas | 198 L |
| Sd | 1210 cm² |
| Xmax | 10 mm |
| Re | 5.2 Ω |
| Bl | 24.8 T·m |
| Mms | 217 g |
| Pe | 1200 W |
| Sensitivity | 96.5 dB |
Alignment hint
| EBP | 88 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 80.4 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma 18LEX1600/ND-8 | 35 = | 0.39 +0.01 | 205 +7 | 10.4 +0.4 | 96.8 +0.3 | close | + | |
| B&C 18NBX100 | 35 = | 0.37 -0.01 | 192 -6 | 10 = | 96 -0.5 | close | 4 Ω vs 8 Ω: amp load changes | + |
| B&C 18 SW 100 | 35 = | 0.375 -0.01 | 180 -18 | 9.7 -0.3 | 96.9 +0.4 | close | Xmax 9.7 mm < 10 mm: lower excursion-limited SPL | + |
| B&C 18SW100 | 35 = | 0.38 = | 180 -18 | 12.5 +2.5 | 97 +0.5 | close | + | |
| Beyma 18LEX1600Fe | 34 -1 | 0.38 = | 188 -10 | 13 +3 | 97 +0.5 | close | + | |
| Celestion POWER PRO X18 | 34.8 -0.2 | 0.379 = | 188.9 -9.1 | 8.6 -1.4 | 96.6 +0.1 | close | Xmax 8.6 mm < 10 mm: lower excursion-limited SPL | + |
| Faital PRO 18HP1060 | 35 = | 0.37 -0.01 | 200.3 +2.3 | 12.45 +2.45 | 98 +1.5 | close | + | |
| Faital PRO 18HW1070 | 32 -3 | 0.38 = | 195.9 -2.1 | 13 +3 | 97 +0.5 | close | + | |
| 18 Sound 18LW2420 | 34 -1 | 0.36 -0.02 | 196 -2 | 10 = | 98 +1.5 | close | + | |
| B&C 18TBW100 | 35 = | 0.39 +0.01 | 175 -23 | 12 +2 | 96 -0.5 | close | + |
Compare the closest 3 against the 18NBX100 →
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.