Focal P30DB
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 2 Ω |
| Fs | 29.4 Hz |
| Qts | 0.427 |
| Qes | 0.46 |
| Qms | 6 |
| Vas | 56.8 L |
| Sd | 510.7 cm² |
| Xmax | 7.7 mm |
| Re | 1.7 Ω |
| Bl | 11.4 T·m |
| Mms | 188.8 g |
| Pe | 400 W |
| Sensitivity | 93.7 dB |
Alignment hint
| EBP | 64 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 32.6 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 SWR-1241D | 28 -1.4 | 0.427 = | 58 +1.2 | 6.9 -0.8 | 93 -0.7 | close | Xmax 6.9 mm < 7.7 mm: lower excursion-limited SPL | + |
| Pioneer TS-W306C | 32.6 +3.2 | 0.414 -0.01 | 55.6 -1.2 | 8.1 +0.4 | 92.8 -0.9 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Powerbass L-124D 12 | 29 -0.4 | 0.489 +0.06 | 59 +2.2 | 9 +1.3 | 93.2 -0.5 | close | + | |
| Bravox UXP12D-4 | 32 +2.6 | 0.496 +0.07 | 58 +1.2 | 7.5 -0.2 | 94.1 +0.4 | close | Xmax 7.5 mm < 7.7 mm: lower excursion-limited SPL | + |
| JBL P1220 | 28.7 -0.7 | 0.448 +0.02 | 47.4 -9.4 | 7.8 +0.1 | 91.8 -1.9 | close | + | |
| Resonant Engineering XXX 12D1 vp | 27 -2.4 | 0.401 -0.03 | 56.5 -0.3 | 12.9 +5.2 | 92 -1.7 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Celestion FTR12-4080DL/4 | 35.3 +5.9 | 0.428 = | 51.4 -5.4 | 8 +0.3 | 92.5 -1.2 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Magnat AD300 | 30 +0.6 | 0.411 -0.02 | 72 +15.2 | 7.3 -0.4 | 92.8 -0.9 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling · Xmax 7.3 mm < 7.7 mm: lower excursion-limited SPL | + |
| Magnat AD 300 Séries II | 30 +0.6 | 0.411 -0.02 | 72 +15.2 | 7.3 -0.4 | 92.6 -1.1 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling · Xmax 7.3 mm < 7.7 mm: lower excursion-limited SPL | + |
| Monacor CRB-38HQ | 31 +1.6 | 0.424 = | 55 -1.8 | 6 -1.7 | 91.2 -2.5 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling · Xmax 6 mm < 7.7 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the P30DB →
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.