B&C 18IPAL
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 2 Ω |
| Fs | 32 Hz |
| Qts | 0.14 |
| Qes | 0.14 |
| Qms | 4.2 |
| Vas | 164 L |
| Sd | 1210 cm² |
| Xmax | 20 mm |
| Re | 1.3 Ω |
| Bl | 24.5 T·m |
| Mms | 330 g |
| Pe | 1700 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 229 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 6.7 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 18DS115 | 30 -2 | 0.17 +0.03 | 177 +13 | 16.5 -3.5 | 97 = | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 16.5 mm < 20 mm: lower excursion-limited SPL | + |
| 18 Sound 18iD200 | 29 -3 | 0.17 +0.03 | 136 -28 | 18 -2 | 95 -2 | usable | Xmax 18 mm < 20 mm: lower excursion-limited SPL | + |
| 18 Sound 18iDSDS | 29 -3 | 0.17 +0.03 | 136 -28 | 18 -2 | 95 -2 | usable | Xmax 18 mm < 20 mm: lower excursion-limited SPL | + |
| B&C 18DS115 | 30 -2 | 0.2 +0.06 | 168 +4 | 16.5 -3.5 | 98 +1 | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 16.5 mm < 20 mm: lower excursion-limited SPL | + |
| B&C 18RS115 | 33 +1 | 0.22 +0.08 | 125 -39 | 23.5 +3.5 | 97.4 +0.4 | usable | 8 Ω vs 2 Ω: amp load changes | + |
| B&C 18DS100 | 32 = | 0.24 +0.1 | 157 -7 | 14 -6 | 98 +1 | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 14 mm < 20 mm: lower excursion-limited SPL | + |
| 18 Sound 18NLW9000 | 32 = | 0.21 +0.07 | 247 +83 | 14 -6 | 97 = | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 14 mm < 20 mm: lower excursion-limited SPL | + |
| Beyma 18QLEX1600Fe | 30 -2 | 0.23 +0.09 | 195 +31 | 13 -7 | 97 = | usable | 8 Ω vs 2 Ω: amp load changes · Xmax 13 mm < 20 mm: lower excursion-limited SPL | + |
| Precision Devices PD1850 | 30 -2 | 0.21 +0.07 | 249 +85 | 16 -4 | 98 +1 | usable | 8 Ω vs 2 Ω: amp load changes · 800 W vs 1700 W: lower power handling · Xmax 16 mm < 20 mm: lower excursion-limited SPL | + |
| 18 Sound 18NTLW5000 | 32 = | 0.3 +0.16 | 165 +1 | 17.5 -2.5 | 95 -2 | usable | 4 Ω vs 2 Ω: amp load changes · Xmax 17.5 mm < 20 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 18IPAL →
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.