hertz Hertz Audio MPS 250 S4

10" · 4 Ω · 500 W · 85.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	29 Hz
Qts	0.476
Qes	0.52
Qms	5.6
Vas	21.2 L
Sd	344.7 cm²
Xmax	8.2 mm
Re	3.3 Ω
Bl	16.5 T·m
Mms	236.6 g
Pe	500 W
Sensitivity	85.8 dB

Alignment hint

EBP	56 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 17.6 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
Dayton Audio UM10-22 v2021	26.9 -2.1	0.495 +0.02	23.5 +2.3	9 +0.8	84.9 -0.9	close		+
Polk Audio MM100	35 +6	0.46 -0.02	22.1 +0.9	8.7 +0.5	84.7 -1.1	close		+
Alpine SWR-10D2	31 +2	0.505 +0.03	18 -3.2	10 +1.8	85.1 -0.7	close		+
JL Audio 10W6V3-D4	30.1 +1.1	0.513 +0.04	23.3 +2.1	10.5 +2.3	83.6 -2.2	close	8 Ω vs 4 Ω: amp load changes	+
Rockford Fosgate P3D2-10	26.6 -2.4	0.495 +0.02	27 +5.8	9.4 +1.2	85.7 -0.1	close		+
Wavecor SW259WA01	29 =	0.467 -0.01	25 +3.8	6.3 -1.9	86.8 +1	close	200 W vs 500 W: lower power handling · Xmax 6.3 mm < 8.2 mm: lower excursion-limited SPL	+
JBL S3 1024	30.2 +1.2	0.476 =	25.3 +4.1	6 -2.2	85.5 -0.3	close	8 Ω vs 4 Ω: amp load changes · Xmax 6 mm < 8.2 mm: lower excursion-limited SPL	+
American Bass DX 10	36.1 +7.1	0.486 +0.01	20.7 -0.5	12 +3.8	84.4 -1.4	close	250 W vs 500 W: lower power handling	+
hertz Hertz Audio ML2500	33 +4	0.497 +0.02	19 -2.2	8 -0.2	88 +2.2	close	Xmax 8 mm < 8.2 mm: lower excursion-limited SPL	+
Wavecor SW263TU01	29.5 +0.5	0.5 +0.02	24.5 +3.3	6.4 -1.8	86.8 +1	close	200 W vs 500 W: lower power handling · Xmax 6.4 mm < 8.2 mm: lower excursion-limited SPL	+

Compare the closest 3 against the MPS 250 S4 →

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.