Beyma 380 MSPA
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.246 |
| Qes | 0.366 |
| Qms | 0.749 |
| Vas | 242.2 L |
| Sd | 880 cm² |
| Xmax | 3.6 mm |
| Re | 6.5 Ω |
| Bl | 18.8 T·m |
| Mms | 87.6 g |
| Pe | 200 W |
| Sensitivity | 97.8 dB |
Alignment hint
| EBP | 98 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 33.4 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 |
|---|---|---|---|---|---|---|---|---|
| BD Design BD15 | 38.9 +2.9 | 0.247 = | 258.2 +16 | 4 +0.4 | 97.3 -0.5 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Altec 3156 | 38 +2 | 0.24 -0.01 | 246.4 +4.2 | 3.8 +0.2 | 99.8 +2 | close | + | |
| Great Plains Audio 3156 GPA | 38 +2 | 0.24 -0.01 | 246.4 +4.2 | 3.8 +0.2 | 99.8 +2 | close | + | |
| Celestion NTR15-3018E v2015 | 34.6 -1.4 | 0.245 = | 225.7 -16.5 | 5 +1.4 | 99.1 +1.3 | close | + | |
| RCF L 15/544K | 35 -1 | 0.233 -0.01 | 227 -15.2 | 4 +0.4 | 98.9 +1.1 | close | + | |
| LaVoce WAF153.02 | 35 -1 | 0.261 +0.02 | 244 +1.8 | 4.6 +1 | 99.7 +1.9 | close | + | |
| Audax PR38S100VST | 33 -3 | 0.236 -0.01 | 218.1 -24.1 | 4 +0.4 | 97.8 = | close | + | |
| Mercuriale PTR 385 M0 | 33 -3 | 0.264 +0.02 | 252 +9.8 | 3.5 -0.1 | 98.2 +0.4 | close | Xmax 3.5 mm < 3.6 mm: lower excursion-limited SPL | + |
| Eminence MAGNUM 15 HO | 33 -3 | 0.27 +0.02 | 241 -1.2 | 4.8 +1.2 | 97.9 +0.1 | close | + | |
| RCF L 15/554K | 35 -1 | 0.243 = | 227 -15.2 | 8 +4.4 | 98.7 +0.9 | close | + |
Compare the closest 3 against the 380 MSPA →
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.