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MTX Audio RT12-44

12" · 2 Ω · 250 W · 91.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance2 Ω
Fs28 Hz
Qts0.698
Qes0.78
Qms6.6
Vas68 L
Sd510 cm²
Xmax7.6 mm
Re1.6 Ω
Bl7.9 T·m
Mms173.2 g
Pe250 W
Sensitivity91.8 dB

Alignment hint

EBP36 · sealed
Sealed Vb (Qtc ≈ 0.71)≈ 2589.1 L

EBP < 50: favours a sealed (closed) 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
JL Audio 12W0V3-428.4 +0.40.67 -0.0371.6 +3.69.3 +1.788.3 -3.5close8 Ω vs 2 Ω: amp load changes+
MTX Audio RTL12-44 DVC30.4 +2.40.761 +0.0674 +67.1 -0.591.7 -0.1close4 Ω vs 2 Ω: amp load changes · Xmax 7.1 mm < 7.6 mm: lower excursion-limited SPL+
Boston Acoustics G2124428 =0.579 -0.1265 -38.2 +0.692.4 +0.6close+
MTX Audio TH6000 612429.7 +1.70.66 -0.0478.4 +10.47.4 -0.290.3 -1.5close4 Ω vs 2 Ω: amp load changes · Xmax 7.4 mm < 7.6 mm: lower excursion-limited SPL+
MTX Audio T5512-0429.3 +1.30.583 -0.1166.9 -1.17.3 -0.389.8 -2close4 Ω vs 2 Ω: amp load changes · Xmax 7.3 mm < 7.6 mm: lower excursion-limited SPL+
MTX Audio RT12-0428 =0.535 -0.1668 =7.5 -0.190.1 -1.7close4 Ω vs 2 Ω: amp load changes · Xmax 7.5 mm < 7.6 mm: lower excursion-limited SPL+
Alpine SWE-124131 +30.653 -0.0461 -711.3 +3.789.6 -2.2usable4 Ω vs 2 Ω: amp load changes+
Wavecor SW310WA0128.5 +0.50.603 -0.0965.5 -2.57.6 =86.8 -5usable8 Ω vs 2 Ω: amp load changes+
Pioneer TS-300S427 -10.7 =77.88 +9.885 -2.693 +1.2usable4 Ω vs 2 Ω: amp load changes · Xmax 5 mm < 7.6 mm: lower excursion-limited SPL+
Focal 33V228.7 +0.70.537 -0.1676.2 +8.27.5 -0.192.5 +0.7usable4 Ω vs 2 Ω: amp load changes · Xmax 7.5 mm < 7.6 mm: lower excursion-limited SPL+

Compare the closest 3 against the RT12-44 →

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)

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