Hertz Audio DS 25.3

10" · 4 Ω · 150 W · 83.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	36 Hz
Qts	0.92
Qes	1.13
Qms	5
Vas	34 L
Sd	361 cm²
Xmax	9 mm
Re	3.41 Ω
Bl	8.5 T·m
Mms	106 g
Pe	150 W
Sensitivity	83.3 dB

Alignment hint

EBP	32 · 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
Alpine SWE-1042	33 -3	0.66 -0.26	33 -1	11.7 +2.7	84.1 +0.8	usable		+
Pioneer TS-ME100WS	48 +12	0.82 -0.1	26.9 -7.1	9.6 +0.6	84 +0.7	usable		+
Hertz Audio DS 250.3	36 =	0.62 -0.3	29 -5	10 +1	84.8 +1.5	usable		+
Pioneer TS-W254F	39.2 +3.2	0.765 -0.16	36.2 +2.2	9.7 +0.7	90.3 +7	usable		+
Focal 10WM	31 -5	0.683 -0.24	28 -6	9.2 +0.2	85.4 +2.1	usable	8 Ω vs 4 Ω: amp load changes	+
JL Audio 10W0V3-4	32.09 -3.91	0.604 -0.32	31 -3	11.4 +2.4	84.07 +0.77	usable		+
Kenwood KFC-WPS1000F	38.6 +2.6	0.722 -0.2	21.05 -12.95	8 -1	83.4 +0.1	usable	Xmax 8 mm < 9 mm: lower excursion-limited SPL	+
Audiobahn AW1051T	42.7 +6.7	0.82 -0.1	19.822 -14.18	13 +4	83.9 +0.6	usable		+
MTX Audio T41012	40.1 +4.1	0.744 -0.18	39.1 +5.1	6.2 -2.8	86.2 +2.9	usable	16 Ω vs 4 Ω: amp load changes · Xmax 6.2 mm < 9 mm: lower excursion-limited SPL	+
Sphynx SP-W10-BP	37.5 +1.5	1.025 +0.1	39 +5	3.7 -5.3	82.9 -0.4	usable	8 Ω vs 4 Ω: amp load changes · Xmax 3.7 mm < 9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the DS 25.3 →

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.