P.Audio FL-18ELF
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.39 |
| Qes | 0.41 |
| Qms | 7.7 |
| Vas | 209.8 L |
| Sd | 1203 cm² |
| Xmax | 8 mm |
| Re | 6.1 Ω |
| Bl | 25.2 T·m |
| Mms | 191.2 g |
| Pe | 800 W |
| Sensitivity | 95.6 dB |
Alignment hint
| EBP | 88 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 91.7 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 -1 | 0.39 = | 205 -4.8 | 10.4 +2.4 | 96.8 +1.2 | close | + | |
| Beyma 18G550 | 36 = | 0.374 -0.02 | 210 +0.2 | 8.1 +0.1 | 97.8 +2.2 | close | + | |
| Beyma 18G550 v2015 | 36 = | 0.374 -0.02 | 210 +0.2 | 8.1 +0.1 | 97.8 +2.2 | close | + | |
| Sica 18 S 4 PL | 36.2 +0.2 | 0.39 = | 189 -20.8 | 8 = | 97.3 +1.7 | close | + | |
| B&C 18NBX100 | 35 -1 | 0.38 -0.01 | 198 -11.8 | 10 +2 | 96.5 +0.9 | close | + | |
| Celestion POWER PRO X18 | 34.8 -1.2 | 0.379 -0.01 | 188.9 -20.9 | 8.6 +0.6 | 96.6 +1 | close | + | |
| B&C 18 TBX 100 (prodance) | 36.6 +0.6 | 0.406 +0.02 | 198 -11.8 | 9 +1 | 97.4 +1.8 | close | + | |
| B&C 18NBX100 | 35 -1 | 0.37 -0.02 | 192 -17.8 | 10 +2 | 96 +0.4 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Selenium 18SW3P | 37 +1 | 0.41 +0.02 | 215 +5.2 | 6.75 -1.25 | 96 +0.4 | close | Xmax 6.75 mm < 8 mm: lower excursion-limited SPL | + |
| Fane 18XLS | 36 = | 0.407 +0.02 | 187 -22.8 | 9.3 +1.3 | 97 +1.4 | close | + |
Compare the closest 3 against the FL-18ELF →
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.