Beyma 12XM
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42 Hz |
| Qts | 0.348 |
| Qes | 0.36 |
| Qms | 10.83 |
| Vas | 125 L |
| Sd | 530 cm² |
| Xmax | 4 mm |
| Re | 5.3 Ω |
| Bl | 13.3 T·m |
| Mms | 45.2 g |
| Pe | 250 W |
| Sensitivity | 97.9 dB |
Alignment hint
| EBP | 117 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 40 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 SOVEREIGN PRO 12-300 | 46 +4 | 0.35 = | 114 -11 | 4.5 +0.5 | 98.1 +0.2 | close | + | |
| 18 Sound 12W501 | 46 +4 | 0.369 +0.02 | 123 -2 | 4 = | 98.7 +0.8 | close | + | |
| 18 Sound 12W500 | 46 +4 | 0.36 +0.01 | 123 -2 | 4 = | 99.5 +1.6 | close | + | |
| Fane SOVEREIGN 12-300 v2014 | 46 +4 | 0.35 = | 110 -15 | 4.5 +0.5 | 98 +0.1 | close | + | |
| Monacor SP-12/200PA | 45 +3 | 0.328 -0.02 | 114 -11 | 4 = | 97.4 -0.5 | close | + | |
| Fane SOVEREIGN PRO 12-350N | 46 +4 | 0.328 -0.02 | 114 -11 | 4.5 +0.5 | 98.4 +0.5 | close | + | |
| Faital PRO 12PR320-08 v2022 | 42 = | 0.371 +0.02 | 113 -12 | 7.1 +3.1 | 97.1 -0.8 | close | + | |
| Faital PRO 12PR320 | 42 = | 0.37 +0.02 | 113.3 -11.7 | 7.37 +3.37 | 97 -0.9 | close | + | |
| Eminence DELTA PRO 12-450A | 44 +2 | 0.371 +0.02 | 141.7 +16.7 | 5.2 +1.2 | 98.9 +1 | close | + | |
| Eminence DELTALITE II 2512 | 44 +2 | 0.406 +0.06 | 134.9 +9.9 | 4.9 +0.9 | 97.9 = | close | + |
Compare the closest 3 against the 12XM →
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.