Alpine SWE-1241
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 31 Hz |
| Qts | 0.653 |
| Qes | 0.7 |
| Qms | 9.68 |
| Vas | 61 L |
| Sd | 490.9 cm² |
| Xmax | 11.3 mm |
| Re | 3.6 Ω |
| Bl | 12.1 T·m |
| Mms | 146 g |
| Pe | 600 W |
| Sensitivity | 89.6 dB |
Alignment hint
| EBP | 44 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 353.5 L |
EBP < 50: favours a sealed (closed) 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 SWE-1242 | 31 = | 0.66 +0.01 | 61 = | 11.7 +0.4 | 85.9 -3.7 | close | 250 W vs 600 W: lower power handling | + |
| Soundstream STEALTH-124 | 29.98 -1.02 | 0.687 +0.03 | 59.5 -1.5 | 13 +1.7 | 84.8 -4.8 | close | 8 Ω vs 4 Ω: amp load changes · 350 W vs 600 W: lower power handling | + |
| JL Audio 12W0V3-4 | 32.09 +1.09 | 0.67 +0.02 | 71.64 +10.64 | 11.4 +0.1 | 85.64 -3.96 | close | 300 W vs 600 W: lower power handling | + |
| Rockford Fosgate T1D412 | 29.2 -1.8 | 0.613 -0.04 | 55.8 -5.2 | 10.9 -0.4 | 85.8 -3.8 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 10.9 mm < 11.3 mm: lower excursion-limited SPL | + |
| JL Audio 12W0V3-4 | 28.4 -2.6 | 0.67 +0.02 | 71.6 +10.6 | 9.3 -2 | 88.3 -1.3 | usable | 8 Ω vs 4 Ω: amp load changes · 300 W vs 600 W: lower power handling · Xmax 9.3 mm < 11.3 mm: lower excursion-limited SPL | + |
| Dayton Audio UMII12-22 | 31 = | 0.564 -0.09 | 53 -8 | 10 -1.3 | 88.2 -1.4 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 10 mm < 11.3 mm: lower excursion-limited SPL | + |
| Rockford Fosgate T1D212 | 28 -3 | 0.522 -0.13 | 55.8 -5.2 | 10.9 -0.4 | 89.1 -0.5 | usable | Xmax 10.9 mm < 11.3 mm: lower excursion-limited SPL | + |
| Sound Storm Labs CR12D | 30.7 -0.3 | 0.522 -0.13 | 66.9 +5.9 | 10.3 -1 | 87.5 -2.1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 10.3 mm < 11.3 mm: lower excursion-limited SPL | + |
| Rockford Fosgate R2SD4-12 | 30.3 -0.7 | 0.653 = | 65.4 +4.4 | 6.9 -4.4 | 86.7 -2.9 | usable | 8 Ω vs 4 Ω: amp load changes · 250 W vs 600 W: lower power handling · Xmax 6.9 mm < 11.3 mm: lower excursion-limited SPL | + |
| MTX Audio T5512-04 | 29.3 -1.7 | 0.583 -0.07 | 66.9 +5.9 | 7.3 -4 | 89.8 +0.2 | usable | 300 W vs 600 W: lower power handling · Xmax 7.3 mm < 11.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the SWE-1241 →
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.