Beyma SM115/K vp3
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 39 Hz |
| Qts | 0.333 |
| Qes | 0.347 |
| Qms | 8.337 |
| Vas | 147.5 L |
| Sd | 877 cm² |
| Xmax | 6.3 mm |
| Re | 6.54 Ω |
| Bl | 23.7 T·m |
| Mms | 121.5 g |
| Pe | 500 W |
| Sensitivity | 96.9 dB |
Alignment hint
| EBP | 112 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 42 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 |
|---|---|---|---|---|---|---|---|---|
| Faital PRO 15FH500 vp2 | 40 +1 | 0.335 = | 146.9 -0.6 | 6.7 +0.4 | 98.3 +1.4 | close | + | |
| Faital PRO 15FH500 vp1 | 40 +1 | 0.328 -0.01 | 146.1 -1.4 | 6.7 +0.4 | 98.4 +1.5 | close | + | |
| Faital PRO 15FH520 | 38 -1 | 0.34 +0.01 | 153.2 +5.7 | 9.15 +2.85 | 97 +0.1 | close | 4 Ω vs 8 Ω: amp load changes | + |
| RCF L 15P200AK-II | 38 -1 | 0.336 = | 139 -8.5 | 8.3 +2 | 96.3 -0.6 | close | + | |
| BMS 15S330 | 39 = | 0.32 -0.01 | 152 +4.5 | 8 +1.7 | 98 +1.1 | close | + | |
| Faital PRO 15FH530 | 39 = | 0.35 +0.02 | 140.6 -6.9 | 9.25 +2.95 | 97 +0.1 | close | + | |
| PD PD 15BR40 | 38.7 -0.3 | 0.34 +0.01 | 158.3 +10.8 | 7.9 +1.6 | 98.1 +1.2 | close | + | |
| Precision Devices PD 15BR40 | 38.7 -0.3 | 0.34 +0.01 | 158.3 +10.8 | 7.9 +1.6 | 98.1 +1.2 | close | + | |
| Faital PRO 15FH500 vp3 | 40.8 +1.8 | 0.343 +0.01 | 141.8 -5.7 | 6.7 +0.4 | 98.2 +1.3 | close | + | |
| BMS 15P214 | 39.2 +0.2 | 0.378 +0.04 | 152 +4.5 | 6.4 +0.1 | 96.6 -0.3 | close | + |
Compare the closest 3 against the SM115/K vp3 →
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.