Beyma SM115/N
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 29 Hz |
| Qts | 0.291 |
| Qes | 0.3 |
| Qms | 10.1 |
| Vas | 430 L |
| Sd | 880 cm² |
| Xmax | 7.3 mm |
| Re | 6.5 Ω |
| Bl | 17.3 T·m |
| Mms | 76 g |
| Pe | 400 W |
| Sensitivity | 98.3 dB |
Alignment hint
| EBP | 97 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 87.7 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 |
|---|---|---|---|---|---|---|---|---|
| Usher Audio 15HM Studio | 27 -2 | 0.28 -0.01 | 385 -45 | 5.9 -1.4 | 98 -0.3 | close | 150 W vs 400 W: lower power handling · Xmax 5.9 mm < 7.3 mm: lower excursion-limited SPL | + |
| Crites Speakers CW1526 V2017 | 26.3 -2.7 | 0.346 +0.05 | 437.2 +7.2 | 7.2 -0.1 | 99.1 +0.8 | close | 4 Ω vs 8 Ω: amp load changes · 150 W vs 400 W: lower power handling · Xmax 7.2 mm < 7.3 mm: lower excursion-limited SPL | + |
| Supravox 400 GN-B | 28.5 -0.5 | 0.272 -0.02 | 450 +20 | 5 -2.3 | 98.6 +0.3 | close | 120 W vs 400 W: lower power handling · Xmax 5 mm < 7.3 mm: lower excursion-limited SPL | + |
| Great Plains Audio 515-8C GPA | 27.8 -1.2 | 0.299 +0.01 | 422.5 -7.5 | 4.7 -2.6 | 97.6 -0.7 | close | 75 W vs 400 W: lower power handling · Xmax 4.7 mm < 7.3 mm: lower excursion-limited SPL | + |
| Scan-Speak 38WE/8582T00 | 26 -3 | 0.243 -0.05 | 423 -7 | 9.5 +2.2 | 97.5 -0.8 | close | + | |
| Beyma 15LW30 | 32 +3 | 0.28 -0.01 | 325 -105 | 7 -0.3 | 98.8 +0.5 | usable | Xmax 7 mm < 7.3 mm: lower excursion-limited SPL | + |
| AE Speakers TD15X 8 Ohms | 23.2 -5.8 | 0.287 = | 467 +37 | 7 -0.3 | 96.3 -2 | usable | 250 W vs 400 W: lower power handling · Xmax 7 mm < 7.3 mm: lower excursion-limited SPL | + |
| RCF L 15P200 v1983 | 29 = | 0.291 = | 280 -150 | 7.4 +0.1 | 96.6 -1.7 | usable | 300 W vs 400 W: lower power handling | + |
| Davis 39GPA15 | 26.2 -2.8 | 0.338 +0.05 | 384 -46 | 7.5 +0.2 | 97 -1.3 | usable | 300 W vs 400 W: lower power handling | + |
| Beyma 15XA38ND | 33 +4 | 0.288 = | 359 -71 | 6 -1.3 | 99 +0.7 | usable | Xmax 6 mm < 7.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the SM115/N →
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.