B&C 18 NW 100
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 31 Hz |
| Qts | 0.254 |
| Qes | 0.27 |
| Qms | 4.2 |
| Vas | 252 L |
| Sd | 1210 cm² |
| Xmax | 8.7 mm |
| Re | 5.1 Ω |
| Bl | 28.1 T·m |
| Mms | 214.7 g |
| Pe | 1200 W |
| Sensitivity | 98.4 dB |
Alignment hint
| EBP | 115 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 37.3 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 18NW100 | 31 = | 0.26 +0.01 | 252 = | 9 +0.3 | 98 -0.4 | close | + | |
| RCF LF 18N401 | 32 +1 | 0.259 +0.01 | 257 +5 | 8.8 +0.1 | 98.9 +0.5 | close | + | |
| RCF LF18N401 | 32 +1 | 0.26 +0.01 | 257 +5 | 9 +0.3 | 98 -0.4 | close | + | |
| RCF LF 18N451 | 31 = | 0.24 -0.01 | 245 -7 | 8.8 +0.1 | 98.7 +0.3 | close | + | |
| RCF LF18N451 | 31 = | 0.24 -0.01 | 245 -7 | 9 +0.3 | 97.5 -0.9 | close | + | |
| 18 Sound 18NLW9400 | 33 +2 | 0.26 +0.01 | 268 +16 | 9.5 +0.8 | 98 -0.4 | close | + | |
| B&C 18 TBX 46 | 31 = | 0.277 +0.02 | 270 +18 | 9 +0.3 | 98.2 -0.2 | close | + | |
| Beyma 18PW1400/FE | 32 +1 | 0.273 +0.02 | 228.9 -23.1 | 9.1 +0.4 | 98.3 -0.1 | close | + | |
| Beyma 18PW1400FE /S | 32 +1 | 0.27 +0.02 | 228.9 -23.1 | 10 +1.3 | 98 -0.4 | close | + | |
| TC Sounds PRO 5100 NEO 2+2 | 26.5 -4.5 | 0.241 -0.01 | 251.4 -0.6 | 8.6 -0.1 | 98.9 +0.5 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 8.6 mm < 8.7 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 18 NW 100 →
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.