Bravox UXP12D-4
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 2 Ω |
| Fs | 32 Hz |
| Qts | 0.496 |
| Qes | 0.57 |
| Qms | 3.8 |
| Vas | 58 L |
| Sd | 518 cm² |
| Xmax | 7.5 mm |
| Re | 1.65 Ω |
| Bl | 9.7 T·m |
| Mms | 160.4 g |
| Pe | 400 W |
| Sensitivity | 94.1 dB |
Alignment hint
| EBP | 56 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 56.2 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 |
|---|---|---|---|---|---|---|---|---|
| Powerbass L-124D 12 | 29 -3 | 0.489 -0.01 | 59 +1 | 9 +1.5 | 93.2 -0.9 | close | + | |
| JBL 1200 GTI | 37 +5 | 0.47 -0.03 | 56.7 -1.3 | 8 +0.5 | 94.5 +0.4 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Focal P30 | 31.3 -0.7 | 0.508 +0.01 | 63.9 +5.9 | 7.4 -0.1 | 91 -3.1 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling · Xmax 7.4 mm < 7.5 mm: lower excursion-limited SPL | + |
| Focal P30DB | 29.4 -2.6 | 0.427 -0.07 | 56.8 -1.2 | 7.7 +0.2 | 93.7 -0.4 | close | + | |
| JBL GTO 1214D | 28.3 -3.7 | 0.488 -0.01 | 66 +8 | 7.3 -0.2 | 92.9 -1.2 | close | Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL | + |
| Pioneer TS-W306C | 32.6 +0.6 | 0.414 -0.08 | 55.6 -2.4 | 8.1 +0.6 | 92.8 -1.3 | close | 4 Ω vs 2 Ω: amp load changes | + |
| Monacor BLACKBASS-12 4 Ohms | 29 -3 | 0.482 -0.01 | 61 +3 | 7.5 = | 90.1 -4 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling | + |
| Magnat POWER BULL 300 | 33 +1 | 0.479 -0.02 | 82 +24 | 8.1 +0.6 | 93 -1.1 | close | 4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling | + |
| Wavecor SW312WA03 | 28 -4 | 0.479 -0.02 | 61 +3 | 7.3 -0.2 | 90.2 -3.9 | close | 4 Ω vs 2 Ω: amp load changes · 250 W vs 400 W: lower power handling · Xmax 7.3 mm < 7.5 mm: lower excursion-limited SPL | + |
| Alpine SWR-1241D | 28 -4 | 0.427 -0.07 | 58 = | 6.9 -0.6 | 93 -1.1 | close | Xmax 6.9 mm < 7.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the UXP12D-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.