Beyma 18G400
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.374 |
| Qes | 0.39 |
| Qms | 8.84 |
| Vas | 300 L |
| Sd | 1300 cm² |
| Xmax | 6 mm |
| Re | 5.5 Ω |
| Bl | 22.2 T·m |
| Mms | 154.3 g |
| Pe | 400 W |
| Sensitivity | 99.2 dB |
Alignment hint
| EBP | 92 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 116.5 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 7560 | 36 = | 0.36 -0.01 | 286 -14 | 6.3 +0.3 | 98.8 -0.4 | close | + | |
| PHL Audio 7050 | 36 = | 0.369 -0.01 | 260 -40 | 7.5 +1.5 | 99.3 +0.1 | close | + | |
| JBL 2241H | 35 -1 | 0.4 +0.03 | 310 +10 | 7.6 +1.6 | 98.9 -0.3 | close | + | |
| PHL Audio 7510 | 36 = | 0.327 -0.05 | 286 -14 | 6 = | 99.2 = | close | + | |
| PHL Audio 7090 | 36 = | 0.386 +0.01 | 260 -40 | 8 +2 | 98.2 -1 | close | + | |
| JBL 2241G | 35 -1 | 0.4 +0.03 | 310 +10 | 7.5 +1.5 | 101.9 +2.7 | close | 4 Ω vs 8 Ω: amp load changes | + |
| JBL 2268H | 33 -3 | 0.354 -0.02 | 328 +28 | 8 +2 | 98.6 -0.6 | close | + | |
| PHL Audio 7030 | 34 -2 | 0.378 = | 260 -40 | 7.8 +1.8 | 97.6 -1.6 | close | + | |
| PHL Audio 7080 | 33 -3 | 0.347 -0.03 | 315 +15 | 8 +2 | 98.3 -0.9 | close | + | |
| Beyma 118Nd/W | 36 = | 0.398 +0.02 | 249 -51 | 7 +1 | 97.7 -1.5 | close | + |
Compare the closest 3 against the 18G400 →
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.