RCF L18S800
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 39 Hz |
| Qts | 0.29 |
| Qes | 0.3 |
| Qms | 8.3 |
| Vas | 206 L |
| Sd | 1134 cm² |
| Xmax | 5 mm |
| Re | 4.97 Ω |
| Bl | 24.5 T·m |
| Mms | 148 g |
| Pe | 300 W |
| Sensitivity | 97.9 dB |
Alignment hint
| EBP | 130 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 41.7 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 |
|---|---|---|---|---|---|---|---|---|
| RCF L 18S800 | 39 = | 0.29 = | 206 = | 6.3 +1.3 | 100.2 +2.3 | close | + | |
| RCF L 18S801 | 39 = | 0.29 = | 206 = | 6.3 +1.3 | 100.2 +2.3 | close | + | |
| B&C 18 PS 76 | 39 = | 0.277 -0.01 | 207 +1 | 5.3 +0.3 | 100 +2.1 | close | + | |
| Ciare 18.00 NDW | 38.3 -0.7 | 0.273 -0.02 | 205 -1 | 5 = | 99.5 +1.6 | close | + | |
| P.Audio C18-600LF | 38 -1 | 0.279 -0.01 | 201 -5 | 5.3 +0.3 | 99.5 +1.6 | close | + | |
| Ciare PW450ND | 38 -1 | 0.273 -0.02 | 205 -1 | 5 = | 99.5 +1.6 | close | + | |
| B&C 18 PS 76 v2023 | 39 = | 0.277 -0.01 | 207 +1 | 5.3 +0.3 | 100.3 +2.4 | close | + | |
| SICA 18 F 4 CP | 38 -1 | 0.29 = | 185.2 -20.8 | 6.2 +1.2 | 97 -0.9 | close | + | |
| PD PDN 18SB40 | 38.5 -0.5 | 0.326 +0.04 | 201.3 -4.7 | 6 +1 | 98.6 +0.7 | close | + | |
| Precision Devices PDN 18SB40 | 38.5 -0.5 | 0.326 +0.04 | 201.3 -4.7 | 6 +1 | 98.6 +0.7 | close | + |
Compare the closest 3 against the L18S800 →
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.