MTX Audio T5512-04

12" · 4 Ω · 300 W · 89.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	29.3 Hz
Qts	0.583
Qes	0.67
Qms	4.48
Vas	66.9 L
Sd	545.4 cm²
Xmax	7.3 mm
Re	3.3 Ω
Bl	12.9 T·m
Mms	184.4 g
Pe	300 W
Sensitivity	89.8 dB

Alignment hint

EBP	44 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 142 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Alpine SWS-1241	30 +0.7	0.563 -0.02	65 -1.9	6.7 -0.6	90.1 +0.3	close	200 W vs 300 W: lower power handling · Xmax 6.7 mm < 7.3 mm: lower excursion-limited SPL	+
MTX Audio RT12-04	28 -1.3	0.535 -0.05	68 +1.1	7.5 +0.2	90.1 +0.3	close		+
Boston Acoustics G21244	28 -1.3	0.579 =	65 -1.9	8.2 +0.9	92.4 +2.6	close	2 Ω vs 4 Ω: amp load changes	+
Wavecor SW310WA01	28.5 -0.8	0.603 +0.02	65.5 -1.4	7.6 +0.3	86.8 -3	close	8 Ω vs 4 Ω: amp load changes	+
Wavecor SW310WA02	27.5 -1.8	0.52 -0.06	64.5 -2.4	7.4 +0.1	89.9 +0.1	close		+
Wavecor SW312WA04	29 -0.3	0.569 -0.01	61 -5.9	7.5 +0.2	86.8 -3	close	8 Ω vs 4 Ω: amp load changes	+
JBL STAGE 1210	31.7 +2.4	0.55 -0.03	64.6 -2.3	6.6 -0.7	90.8 +1	close	Xmax 6.6 mm < 7.3 mm: lower excursion-limited SPL	+
JBL GT5-12 vp	29 -0.3	0.582 =	54.2 -12.7	6.7 -0.6	88.1 -1.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 7.3 mm: lower excursion-limited SPL	+
Rockford Fosgate P2D4-12	27 -2.3	0.581 =	70.3 +3.4	10.1 +2.8	86.8 -3	close	8 Ω vs 4 Ω: amp load changes	+
MTX Audio TH6000 6124	29.7 +0.4	0.66 +0.08	78.4 +11.5	7.4 +0.1	90.3 +0.5	close		+

Compare the closest 3 against the T5512-04 →

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.