hertz Hertz Audio HX250

10" · 4 Ω · 250 W · 90.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	37 Hz
Qts	0.444
Qes	0.49
Qms	4.7
Vas	24 L
Sd	344 cm²
Xmax	5.3 mm
Re	2.9 Ω
Bl	13.3 T·m
Mms	127.7 g
Pe	250 W
Sensitivity	90.3 dB

Alignment hint

EBP	76 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 15.6 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
Auditor 250 P	38.7 +1.7	0.454 +0.01	24.8 +0.8	5 -0.3	90.3 =	close	Xmax 5 mm < 5.3 mm: lower excursion-limited SPL	+
Focal 27 V1	39 +2	0.445 =	21.4 -2.6	4.9 -0.4	90.4 +0.1	close	Xmax 4.9 mm < 5.3 mm: lower excursion-limited SPL	+
Kicker COMPVX 10	35.4 -1.6	0.403 -0.04	23 -1	5.2 -0.1	89.6 -0.7	close	Xmax 5.2 mm < 5.3 mm: lower excursion-limited SPL	+
Peerless GBS-250F38CP01-04	37.7 +0.7	0.451 +0.01	23.9 -0.1	3.7 -1.6	89.8 -0.5	close	100 W vs 250 W: lower power handling · Xmax 3.7 mm < 5.3 mm: lower excursion-limited SPL	+
Gladen SQX10	38.8 +1.8	0.387 -0.06	24.5 +0.5	5 -0.3	91.3 +1	close	Xmax 5 mm < 5.3 mm: lower excursion-limited SPL	+
Oxygen AIR2 250	36.4 -0.6	0.502 +0.06	22.4 -1.6	5.8 +0.5	88.3 -2	close		+
Focal 11V 5552	40.5 +3.5	0.497 +0.05	24.1 +0.1	4.6 -0.7	90.8 +0.5	close	175 W vs 250 W: lower power handling · Xmax 4.6 mm < 5.3 mm: lower excursion-limited SPL	+
Focal ACCESS 27A	41.3 +4.3	0.48 +0.04	21.2 -2.8	5 -0.3	90.8 +0.5	close	Xmax 5 mm < 5.3 mm: lower excursion-limited SPL	+
Hertz Audio HX 250	37 =	0.44 =	24 =	14 +8.7	85.8 -4.5	close		+
Pioneer TS-W255C	35 -2	0.351 -0.09	24.9 +0.9	6.6 +1.3	91 +0.7	usable		+

Compare the closest 3 against the HX250 →

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.