Focal SUB10WM

10" · 4 Ω · 400 W · 86.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	31 Hz
Qts	0.683
Qes	0.76
Qms	6.7
Vas	28 L
Sd	327 cm²
Xmax	8.5 mm
Re	3.1 Ω
Bl	10.6 T·m
Mms	141.1 g
Pe	400 W
Sensitivity	86.5 dB

Alignment hint

EBP	41 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 389.8 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
Focal 10WM	31 =	0.683 =	28 =	9.2 +0.7	85.4 -1.1	close	8 Ω vs 4 Ω: amp load changes	+
JL Audio 10W0V3-4	32.1 +1.1	0.604 -0.08	31 +3	8.7 +0.2	86.7 +0.2	close	8 Ω vs 4 Ω: amp load changes · 300 W vs 400 W: lower power handling	+
HiVi CS100B	31 =	0.653 -0.03	34.2 +6.2	7 -1.5	86.8 +0.3	close	200 W vs 400 W: lower power handling · Xmax 7 mm < 8.5 mm: lower excursion-limited SPL	+
Alpine SWE-1042	33 +2	0.66 -0.02	33 +5	11.7 +3.2	84.1 -2.4	close	250 W vs 400 W: lower power handling	+
Hertz Audio DS 250.3	36 +5	0.62 -0.06	29 +1	10 +1.5	84.8 -1.7	close	200 W vs 400 W: lower power handling	+
Earthquake Sound DB-10	26 -5	0.7 +0.02	30.5 +2.5	19.1 +10.6	87 +0.5	usable		+
JL Audio 10W0V3-4	32.09 +1.09	0.604 -0.08	31 +3	11.4 +2.9	84.07 -2.43	usable	300 W vs 400 W: lower power handling	+
hertz Hertz Audio ML2500.3	33 +2	0.598 -0.09	23.5 -4.5	10.3 +1.8	87.8 +1.3	usable		+
Wavecor SW275BD01	30.8 -0.2	0.564 -0.12	31 +3	6.9 -1.6	87.2 +0.7	usable	180 W vs 400 W: lower power handling · Xmax 6.9 mm < 8.5 mm: lower excursion-limited SPL	+
MTX Audio 5510-44	33.6 +2.6	0.63 -0.05	29.2 +1.2	7.2 -1.3	90.1 +3.6	usable	2 Ω vs 4 Ω: amp load changes · Xmax 7.2 mm < 8.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SUB10WM →

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.