Hertz Audio DS 250.3

10" · 4 Ω · 200 W · 84.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	36 Hz
Qts	0.62
Qes	0.69
Qms	6.35
Vas	29 L
Sd	354 cm²
Xmax	10 mm
Re	3.54 Ω
Bl	11.8 T·m
Mms	120 g
Pe	200 W
Sensitivity	84.8 dB

Alignment hint

EBP	52 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 96.4 L

EBP 50-100: works in either a sealed or ported 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
JL Audio 10W0V3-4	32.09 -3.91	0.604 -0.02	31 +2	11.4 +1.4	84.07 -0.73	close		+
Alpine SWE-1042	33 -3	0.66 +0.04	33 +4	11.7 +1.7	84.1 -0.7	close		+
JL Audio 10W0V3-4	32.1 -3.9	0.604 -0.02	31 +2	8.7 -1.3	86.7 +1.9	close	8 Ω vs 4 Ω: amp load changes · Xmax 8.7 mm < 10 mm: lower excursion-limited SPL	+
Focal 10WM	31 -5	0.683 +0.06	28 -1	9.2 -0.8	85.4 +0.6	close	8 Ω vs 4 Ω: amp load changes · Xmax 9.2 mm < 10 mm: lower excursion-limited SPL	+
Polk Audio DB1040	35 -1	0.55 -0.07	28.3 -0.7	7.5 -2.5	85 +0.2	close	Xmax 7.5 mm < 10 mm: lower excursion-limited SPL	+
hertz Hertz Audio ML2500.3	33 -3	0.598 -0.02	23.5 -5.5	10.3 +0.3	87.8 +3	usable		+
Gladen RS-X 10	35.57 -0.43	0.46 -0.16	27.8 -1.2	10 =	85.9 +1.1	usable		+
Focal R-250S	35.4 -0.6	0.596 -0.02	28.1 -0.9	7 -3	88.2 +3.4	usable	Xmax 7 mm < 10 mm: lower excursion-limited SPL	+
American Bass SL 104	33.6 -2.4	0.52 -0.1	26.8 -2.2	8.5 -1.5	84.3 -0.5	usable	Xmax 8.5 mm < 10 mm: lower excursion-limited SPL	+
Brax MATRIX 10.1	35.8 -0.2	0.53 -0.09	35.34 +6.34	12.5 +2.5	86.5 +1.7	usable		+

Compare the closest 3 against the DS 250.3 →

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.