MTX Audio T3154

15" · 4 Ω · 200 W · 93.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	22.7 Hz
Qts	0.561
Qes	0.59
Qms	11.48
Vas	315.9 L
Sd	856 cm²
Xmax	9.4 mm
Re	3.29 Ω
Bl	11.3 T·m
Mms	159.8 g
Pe	200 W
Sensitivity	93.8 dB

Alignment hint

EBP	38 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 536.6 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
AE Speakers IB15AU-4	20.4 -2.3	0.619 +0.06	387 +71.1	9 -0.4	93.5 -0.3	usable	Xmax 9 mm < 9.4 mm: lower excursion-limited SPL	+
Blaupunkt VELOCITY VRS15	21 -1.7	0.499 -0.06	291 -24.9	7.5 -1.9	93.1 -0.7	usable	Xmax 7.5 mm < 9.4 mm: lower excursion-limited SPL	+
Hertz Audio ES380	24 +1.3	0.52 -0.04	220 -95.9	9 -0.4	93.7 -0.1	usable	Xmax 9 mm < 9.4 mm: lower excursion-limited SPL	+
Dayton Audio DCS380-4	22.9 +0.2	0.504 -0.06	233.9 -82	8.4 -1	92.9 -0.9	usable	Xmax 8.4 mm < 9.4 mm: lower excursion-limited SPL	+
SB Acoustics SB42FHC75-6	22.5 -0.2	0.372 -0.19	318 +2.1	10.1 +0.7	94 +0.2	usable	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio IB385-8	21.5 -1.2	0.588 +0.03	248.9 -67	12.4 +3	89.8 -4	usable	8 Ω vs 4 Ω: amp load changes	+
Oxygen AIR2 380	22.7 =	0.543 -0.02	202.2 -113.7	11.5 +2.1	91.6 -2.2	usable		+
Oxygen AIR 15.1	25 +2.3	0.465 -0.1	262.1 -53.8	11.1 +1.7	94.5 +0.7	usable		+
Dayton Audio DCS380-4 v2017	21.5 -1.2	0.434 -0.13	267 -48.9	8.4 -1	93.7 -0.1	usable	Xmax 8.4 mm < 9.4 mm: lower excursion-limited SPL	+
AE Speakers IB15AU-8	20.4 -2.3	0.619 +0.06	387 +71.1	9 -0.4	90.4 -3.4	usable	8 Ω vs 4 Ω: amp load changes · Xmax 9 mm < 9.4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the T3154 →

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.