Powerbass L-124D 12
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 2 Ω |
| Fs | 29 Hz |
| Qts | 0.489 |
| Qes | 0.54 |
| Qms | 5.2 |
| Vas | 59 L |
| Sd | 471 cm² |
| Xmax | 9 mm |
| Re | 1.6 Ω |
| Bl | 9.3 T·m |
| Mms | 158.8 g |
| Pe | 400 W |
| Sensitivity | 93.2 dB |
Alignment hint
| EBP | 54 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 54.1 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 |
|---|---|---|---|---|---|---|---|---|
| JBL GTO 1214D | 28.3 -0.7 | 0.488 = | 66 +7 | 7.3 -1.7 | 92.9 -0.3 | close | Xmax 7.3 mm < 9 mm: lower excursion-limited SPL | + |
| Bravox UXP12D-4 | 32 +3 | 0.496 +0.01 | 58 -1 | 7.5 -1.5 | 94.1 +0.9 | close | Xmax 7.5 mm < 9 mm: lower excursion-limited SPL | + |
| Monacor BLACKBASS-12 4 Ohms | 29 = | 0.482 -0.01 | 61 +2 | 7.5 -1.5 | 90.1 -3.1 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling · Xmax 7.5 mm < 9 mm: lower excursion-limited SPL | + |
| Dayton Audio TS320D-4 TITANIC MK 4 | 28.3 -0.7 | 0.453 -0.04 | 64.1 +5.1 | 9.8 +0.8 | 90.7 -2.5 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Rockford Fosgate P3D2-12 | 26.5 -2.5 | 0.491 = | 57.7 -1.3 | 9.5 +0.5 | 89 -4.2 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Focal P30DB | 29.4 +0.4 | 0.427 -0.06 | 56.8 -2.2 | 7.7 -1.3 | 93.7 +0.5 | close | Xmax 7.7 mm < 9 mm: lower excursion-limited SPL | + |
| JL Audio 12W7AE-3 | 27.2 -1.8 | 0.482 -0.01 | 66 +7 | 13.7 +4.7 | 91.2 -2 | close | 4 Ω vs 2 Ω: amp load changes | + |
| JL Audio 13TW5V2-2 | 27.6 -1.4 | 0.526 +0.04 | 60.3 +1.3 | 9 = | 89.2 -4 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Alpine 1242D | 29 = | 0.47 -0.02 | 45 -14 | 9.1 +0.1 | 91.4 -1.8 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Wavecor SW312WA03 | 28 -1 | 0.479 -0.01 | 61 +2 | 7.3 -1.7 | 90.2 -3 | close | 4 Ω vs 2 Ω: amp load changes · 250 W vs 400 W: lower power handling · Xmax 7.3 mm < 9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the L-124D 12 →
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.