Beyma 15XM
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.398 |
| Qes | 0.41 |
| Qms | 13.8 |
| Vas | 310 L |
| Sd | 880 cm² |
| Xmax | 4 mm |
| Re | 5.8 Ω |
| Bl | 14.8 T·m |
| Mms | 68.4 g |
| Pe | 250 W |
| Sensitivity | 98.9 dB |
Alignment hint
| EBP | 88 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 143.8 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 |
|---|---|---|---|---|---|---|---|---|
| Klipsch K33-E | 34.5 -1.5 | 0.388 -0.01 | 301.7 -8.3 | 4.1 +0.1 | 100.5 +1.6 | close | 4 Ω vs 8 Ω: amp load changes · 100 W vs 250 W: lower power handling | + |
| Beyma SM115 vp1 | 35.9 -0.1 | 0.355 -0.04 | 314.2 +4.2 | 7.3 +3.3 | 98.5 -0.4 | close | + | |
| Beyma 15SP | 32 -4 | 0.412 +0.01 | 309 -1 | 4.3 +0.3 | 96.9 -2 | close | 150 W vs 250 W: lower power handling | + |
| Beyma SM115 vp2 | 35.4 -0.6 | 0.365 -0.03 | 295.8 -14.2 | 7.3 +3.3 | 98.2 -0.7 | close | + | |
| Beyma CM-15G | 34 -2 | 0.375 -0.02 | 285 -25 | 5 +1 | 97.7 -1.2 | close | + | |
| JBL MI-15A | 40 +4 | 0.421 +0.02 | 271.8 -38.2 | 4 = | 99.2 +0.3 | close | 150 W vs 250 W: lower power handling | + |
| Beyma SM115 vp4 | 35.5 -0.5 | 0.339 -0.06 | 310.6 +0.6 | 7.3 +3.3 | 99 +0.1 | close | + | |
| Audax PR38EX66UST | 33 -3 | 0.344 -0.05 | 309 -1 | 4 = | 97.9 -1 | close | 150 W vs 250 W: lower power handling | + |
| DAS Audio 15L | 38 +2 | 0.418 +0.02 | 263 -47 | 6 +2 | 98.1 -0.8 | close | + | |
| Eminence LEGEND CB15 | 34 -2 | 0.339 -0.06 | 336 +26 | 4.8 +0.8 | 98.8 -0.1 | close | + |
Compare the closest 3 against the 15XM →
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.