Pioneer TS-W126M

12" · 4 Ω · 300 W · 96 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	24.6 Hz
Qts	0.81
Qes	0.85
Qms	15.6
Vas	102.099 L
Sd	513 cm²
Xmax	11.7 mm
Re	3.6 Ω
Bl	10.3 T·m
Mms	153.9 g
Pe	300 W
Sensitivity	96 dB

Alignment hint

EBP	29 · sealed
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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
Pioneer TS-W306R	24.6 =	0.815 =	102.1 =	11.6 -0.1	87.9 -8.1	close	Xmax 11.6 mm < 11.7 mm: lower excursion-limited SPL	+
Visaton TIW360DS 2x4 Ohms	30 +5.4	0.675 -0.13	114 +11.9	11.7 =	92 -4	usable		+
Kenwood KFC-W3013PS	25 +0.4	0.82 +0.01	83.7 -18.4	15 +3.3	83.4 -12.6	usable		+
Kenwood KFC-W3013	25 +0.4	0.82 +0.01	83.7 -18.4	7.6 -4.1	87.3 -8.7	usable	Xmax 7.6 mm < 11.7 mm: lower excursion-limited SPL	+
Oxygen SPIRAL 12.1	27 +2.4	0.749 -0.06	94 -8.1	7 -4.7	88.7 -7.3	usable	150 W vs 300 W: lower power handling · Xmax 7 mm < 11.7 mm: lower excursion-limited SPL	+
Focal 30A4	24.7 +0.1	0.671 -0.14	86.9 -15.2	8.5 -3.2	87.3 -8.7	usable	8 Ω vs 4 Ω: amp load changes · Xmax 8.5 mm < 11.7 mm: lower excursion-limited SPL	+
Focal 30A4 vp	24.7 +0.1	0.671 -0.14	86.9 -15.2	8.5 -3.2	87.3 -8.7	usable	8 Ω vs 4 Ω: amp load changes · Xmax 8.5 mm < 11.7 mm: lower excursion-limited SPL	+
Lanzar VW124/12D	40 +15.4	0.763 -0.05	147.4 +45.3	10 -1.7	95.5 -0.5	usable	Xmax 10 mm < 11.7 mm: lower excursion-limited SPL	+
Sony XS-L121P5S	22.6 -2	0.51 -0.3	102.1 =	11.5 -0.2	89 -7	usable	Xmax 11.5 mm < 11.7 mm: lower excursion-limited SPL	+
Blaupunkt VCS 1200	23 -1.6	0.487 -0.32	102 -0.1	13 +1.3	89.9 -6.1	usable		+

Compare the closest 3 against the TS-W126M →

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.