BMS 18S430
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 32.9 Hz |
| Qts | 0.33 |
| Qes | 0.34 |
| Qms | 6.8 |
| Vas | 247 L |
| Sd | 1213 cm² |
| Xmax | 7.5 mm |
| Re | 5 Ω |
| Bl | 24.26 T·m |
| Mms | 195 g |
| Pe | 600 W |
| Sensitivity | 96 dB |
Alignment hint
| EBP | 97 · 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 |
|---|---|---|---|---|---|---|---|---|
| Fane COLOSSUS 18XB v2016 | 33 +0.1 | 0.337 +0.01 | 236 -11 | 7.5 = | 96.6 +0.6 | close | + | |
| RCF L18P300 | 33 +0.1 | 0.33 = | 226 -21 | 7.8 +0.3 | 95.6 -0.4 | close | + | |
| Fane 18XBN | 33 +0.1 | 0.337 +0.01 | 236 -11 | 7.5 = | 96.8 +0.8 | close | + | |
| Fane COLOSSUS 18XBN | 33 +0.1 | 0.337 +0.01 | 236 -11 | 7.5 = | 96.8 +0.8 | close | + | |
| Dayton Audio APOLLO 18N | 32 -0.9 | 0.338 +0.01 | 253.6 +6.6 | 9.1 +1.6 | 96.9 +0.9 | close | + | |
| BMS 18S430vv2 | 31 -1.9 | 0.34 +0.01 | 262 +15 | 8 +0.5 | 96 = | close | + | |
| Eminence DEFINIMAX 4018 LF | 32 -0.9 | 0.348 +0.02 | 237.9 -9.1 | 8.6 +1.1 | 96.4 +0.4 | close | + | |
| RCF L 18P300 8 Ohms | 33 +0.1 | 0.327 = | 226 -21 | 7.8 +0.3 | 97.8 +1.8 | close | + | |
| Fane COLOSSUS 18-1000 | 32 -0.9 | 0.319 -0.01 | 236 -11 | 8.9 +1.4 | 97 +1 | close | + | |
| Beyma 18P1000 | 32 -0.9 | 0.362 +0.03 | 245 -2 | 8 +0.5 | 96.5 +0.5 | close | + |
Compare the closest 3 against the 18S430 →
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.