B&C 18TBX100
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.35 |
| Qes | 0.37 |
| Qms | 7.2 |
| Vas | 212 L |
| Sd | 1210 cm² |
| Xmax | 9 mm |
| Re | 5.1 Ω |
| Bl | 25.5 T·m |
| Mms | 209 g |
| Pe | 1200 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 92 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 68.8 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 |
|---|---|---|---|---|---|---|---|---|
| B&C 18 TBX 100 | 34 = | 0.352 = | 212 = | 9 = | 97.5 +0.5 | close | + | |
| Sica 18 S 4 CP | 33 -1 | 0.35 = | 225 +13 | 11 +2 | 97.1 +0.1 | close | + | |
| PHL Audio 7201ND | 34 = | 0.355 +0.01 | 230 +18 | 8.5 -0.5 | 97.5 +0.5 | close | Xmax 8.5 mm < 9 mm: lower excursion-limited SPL | + |
| 18 Sound 18LW1400 | 33 -1 | 0.32 -0.03 | 210 -2 | 9 = | 97 = | close | 4 Ω vs 8 Ω: amp load changes | + |
| 18 Sound 18LW2420 | 34 = | 0.36 +0.01 | 196 -16 | 10 +1 | 98 +1 | close | + | |
| B&C 18 RBX 100 | 35 +1 | 0.343 -0.01 | 220 +8 | 8.3 -0.7 | 98.1 +1.1 | close | Xmax 8.3 mm < 9 mm: lower excursion-limited SPL | + |
| Beyma 18SW1600ND | 32 -2 | 0.33 -0.02 | 205.7 -6.3 | 10 +1 | 96.6 -0.4 | close | + | |
| Faital PRO 18XL1600 | 32 -2 | 0.36 +0.01 | 211.4 -0.6 | 12.92 +3.92 | 98 +1 | close | + | |
| Eminence DEFINIMAX 4018 LF | 32 -2 | 0.348 = | 237.9 +25.9 | 8.6 -0.4 | 96.4 -0.6 | close | Xmax 8.6 mm < 9 mm: lower excursion-limited SPL | + |
| Beyma 18LEX1600/ND-8 | 35 +1 | 0.39 +0.04 | 205 -7 | 10.4 +1.4 | 96.8 -0.2 | close | + |
Compare the closest 3 against the 18TBX100 →
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.