JL Audio 12TW1-4
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 32.35 Hz |
| Qts | 0.529 |
| Qes | 0.56 |
| Qms | 11.066 |
| Vas | 33.67 L |
| Sd | 436 cm² |
| Xmax | 10 mm |
| Re | 3.514 Ω |
| Bl | 15.71 T·m |
| Mms | 193.6 g |
| Pe | 300 W |
| Sensitivity | 85.15 dB |
Alignment hint
| EBP | 58 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 42.8 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 |
|---|---|---|---|---|---|---|---|---|
| Monacor RAPTOR 12 MK2 | 34 +1.65 | 0.523 -0.01 | 32 -1.67 | 10.1 +0.1 | 89.2 +4.05 | close | + | |
| JL Audio 12TW1-2 | 35 +2.65 | 0.577 +0.05 | 28.54 -5.13 | 10 = | 85.07 -0.08 | close | 2 Ω vs 4 Ω: amp load changes | + |
| Pioneer TS-SW124D(PREMIER) | 31.7 -0.65 | 0.55 +0.02 | 28.062 -5.61 | 8.6 -1.4 | 83.9 -1.25 | close | Xmax 8.6 mm < 10 mm: lower excursion-limited SPL | + |
| Alpine SWX-1243D Type-X | 29 -3.35 | 0.59 +0.06 | 38 +4.33 | 10.8 +0.8 | 84.2 -0.95 | close | 8 Ω vs 4 Ω: amp load changes | + |
| Hifonics MXZ 12D2 | 31 -1.35 | 0.443 -0.09 | 30 -3.67 | 10.3 +0.3 | 87.3 +2.15 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Hifonics OLM800D4 | 29 -3.35 | 0.525 = | 41 +7.33 | 7.5 -2.5 | 84.9 -0.25 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 7.5 mm < 10 mm: lower excursion-limited SPL | + |
| Dayton Audio RSS315HE-22 | 32 -0.35 | 0.461 -0.07 | 32.4 -1.27 | 8.2 -1.8 | 88.1 +2.95 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 8.2 mm < 10 mm: lower excursion-limited SPL | + |
| American Bass DX 12 | 35.6 +3.25 | 0.6 +0.07 | 41.5 +7.83 | 12 +2 | 86.2 +1.05 | usable | + | |
| Rockford Fosgate T112D2 | 31 -1.35 | 0.474 -0.06 | 34.8 +1.13 | 8.2 -1.8 | 89 +3.85 | usable | Xmax 8.2 mm < 10 mm: lower excursion-limited SPL | + |
| JBL W12GTI | 31.8 -0.55 | 0.508 -0.02 | 44.8 +11.13 | 9.9 -0.1 | 90.1 +4.95 | usable | Xmax 9.9 mm < 10 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12TW1-4 →
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.