Beyma 15G40
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 37 Hz |
| Qts | 0.301 |
| Qes | 0.31 |
| Qms | 9.95 |
| Vas | 149 L |
| Sd | 830 cm² |
| Xmax | 7.7 mm |
| Re | 5.9 Ω |
| Bl | 23 T·m |
| Mms | 119.9 g |
| Pe | 700 W |
| Sensitivity | 97.2 dB |
Alignment hint
| EBP | 119 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 33 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 |
|---|---|---|---|---|---|---|---|---|
| Fane COLOSSUS 15XS | 36.3 -0.7 | 0.307 +0.01 | 149.7 +0.7 | 9.1 +1.4 | 97.3 +0.1 | close | + | |
| Fane COLOSSUS PRIME 15XS | 36.3 -0.7 | 0.307 +0.01 | 149.7 +0.7 | 9.1 +1.4 | 97.3 +0.1 | close | + | |
| BMS 15N840 v2015 | 35.6 -1.4 | 0.303 = | 145.7 -3.3 | 9.9 +2.2 | 97.1 -0.1 | close | + | |
| Faital PRO 15FX560 v2015 | 38 +1 | 0.296 -0.01 | 143 -6 | 7.5 -0.2 | 97.9 +0.7 | close | Xmax 7.5 mm < 7.7 mm: lower excursion-limited SPL | + |
| Beyma 15P1000 | 35 -2 | 0.293 -0.01 | 146 -3 | 8.7 +1 | 96.3 -0.9 | close | + | |
| BMS 15S330 | 39 +2 | 0.32 +0.02 | 152 +3 | 8 +0.3 | 98 +0.8 | close | + | |
| Faital PRO 15FX560 | 38 +1 | 0.3 = | 159 +10 | 9.42 +1.72 | 99 +1.8 | close | + | |
| Beyma 115ND/W | 37 = | 0.285 -0.02 | 145 -4 | 6.6 -1.1 | 97.7 +0.5 | close | Xmax 6.6 mm < 7.7 mm: lower excursion-limited SPL | + |
| B&C 15 PS 100 | 33 -4 | 0.309 +0.01 | 150.1 +1.1 | 7.8 +0.1 | 95.9 -1.3 | close | + | |
| BMS 15N840 | 35.6 -1.4 | 0.3 = | 145.7 -3.3 | 11 +3.3 | 95 -2.2 | close | + |
Compare the closest 3 against the 15G40 →
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.