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Bravox UXP12D-4

12" · 2 Ω · 400 W · 94.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance2 Ω
Fs32 Hz
Qts0.496
Qes0.57
Qms3.8
Vas58 L
Sd518 cm²
Xmax7.5 mm
Re1.65 Ω
Bl9.7 T·m
Mms160.4 g
Pe400 W
Sensitivity94.1 dB

Alignment hint

EBP56 · 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Powerbass L-124D 1229 -30.489 -0.0159 +19 +1.593.2 -0.9close+
JBL 1200 GTI37 +50.47 -0.0356.7 -1.38 +0.594.5 +0.4close4 Ω vs 2 Ω: amp load changes+
Focal P3031.3 -0.70.508 +0.0163.9 +5.97.4 -0.191 -3.1close4 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 P30DB29.4 -2.60.427 -0.0756.8 -1.27.7 +0.293.7 -0.4close+
JBL GTO 1214D28.3 -3.70.488 -0.0166 +87.3 -0.292.9 -1.2closeXmax 7.3 mm < 7.5 mm: lower excursion-limited SPL+
Pioneer TS-W306C32.6 +0.60.414 -0.0855.6 -2.48.1 +0.692.8 -1.3close4 Ω vs 2 Ω: amp load changes+
Monacor BLACKBASS-12 4 Ohms29 -30.482 -0.0161 +37.5 =90.1 -4close4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling+
Magnat POWER BULL 30033 +10.479 -0.0282 +248.1 +0.693 -1.1close4 Ω vs 2 Ω: amp load changes · 300 W vs 400 W: lower power handling+
Wavecor SW312WA0328 -40.479 -0.0261 +37.3 -0.290.2 -3.9close4 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-1241D28 -40.427 -0.0758 =6.9 -0.693 -1.1closeXmax 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.