RCF L 18P540
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 34 Hz |
| Qts | 0.372 |
| Qes | 0.39 |
| Qms | 8 |
| Vas | 228 L |
| Sd | 1130 cm² |
| Xmax | 6.9 mm |
| Re | 5.5 Ω |
| Bl | 22.8 T·m |
| Mms | 172 g |
| Pe | 500 W |
| Sensitivity | 97.2 dB |
Alignment hint
| EBP | 87 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 87.3 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 |
|---|---|---|---|---|---|---|---|---|
| PHL Audio 7201ND | 34 = | 0.355 -0.02 | 230 +2 | 8.5 +1.6 | 97.5 +0.3 | close | + | |
| PHL Audio 7030 | 34 = | 0.378 +0.01 | 260 +32 | 7.8 +0.9 | 97.6 +0.4 | close | + | |
| B&C 18 TBX 100 | 34 = | 0.352 -0.02 | 212 -16 | 9 +2.1 | 97.5 +0.3 | close | + | |
| B&C 18TBX100 | 34 = | 0.35 -0.02 | 212 -16 | 9 +2.1 | 97 -0.2 | close | + | |
| Beyma 18G550 | 36 +2 | 0.374 = | 210 -18 | 8.1 +1.2 | 97.8 +0.6 | close | + | |
| Beyma 18G550 v2015 | 36 +2 | 0.374 = | 210 -18 | 8.1 +1.2 | 97.8 +0.6 | close | + | |
| Sica 18 S 4 CP | 33 -1 | 0.35 -0.02 | 225 -3 | 11 +4.1 | 97.1 -0.1 | close | + | |
| Oberton 18B450 | 34.38 +0.38 | 0.342 -0.03 | 241.55 +13.55 | 7.25 +0.35 | 98 +0.8 | close | + | |
| Beyma 18P1000 | 32 -2 | 0.362 -0.01 | 245 +17 | 8 +1.1 | 96.5 -0.7 | close | + | |
| Beyma 18LEX1000Fe | 34 = | 0.38 +0.01 | 250 +22 | 11 +4.1 | 98 +0.8 | close | + |
Compare the closest 3 against the L 18P540 →
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.