Alpine SWE1242E vp
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 28 Hz |
| Qts | 0.38 |
| Qes | 0.43 |
| Qms | 3.27 |
| Vas | 75 L |
| Sd | 502 cm² |
| Xmax | 5.9 mm |
| Re | 3.6 Ω |
| Bl | 15 T·m |
| Mms | 152.2 g |
| Pe | 250 W |
| Sensitivity | 91.3 dB |
Alignment hint
| EBP | 65 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 30.5 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 |
|---|---|---|---|---|---|---|---|---|
| Alpine SWG-1244 | 28 = | 0.38 = | 75 = | 10 +4.1 | 87.7 -3.6 | close | + | |
| hertz Hertz Audio ES300 | 28 = | 0.382 = | 89.4 +14.4 | 7.7 +1.8 | 93 +1.7 | close | + | |
| AER SB 12 | 29 +1 | 0.349 -0.03 | 82 +7 | 7.1 +1.2 | 90.6 -0.7 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Infinity 1230W | 27.3 -0.7 | 0.437 +0.06 | 78.5 +3.5 | 7.9 +2 | 91 -0.3 | close | + | |
| Magnat AD 300 Séries II | 30 +2 | 0.411 +0.03 | 72 -3 | 7.3 +1.4 | 92.6 +1.3 | close | + | |
| Aura Sound NS12-794-4A | 27 -1 | 0.423 +0.04 | 78 +3 | 9.9 +4 | 90.9 -0.4 | close | + | |
| Auditor RIP 300P | 28.9 +0.9 | 0.35 -0.03 | 79.3 +4.3 | 8.8 +2.9 | 92.6 +1.3 | close | + | |
| JBL GTO 1264 | 26.7 -1.3 | 0.428 +0.05 | 83.1 +8.1 | 6.3 +0.4 | 91 -0.3 | close | + | |
| Magnat AD300 | 30 +2 | 0.411 +0.03 | 72 -3 | 7.3 +1.4 | 92.8 +1.5 | close | + | |
| Sony XS-L122P5S | 24.8 -3.2 | 0.369 -0.01 | 86.7 +11.7 | 5.7 -0.2 | 91.1 -0.2 | close | Xmax 5.7 mm < 5.9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the SWE1242E vp →
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.