Audax PR240Z2

10" · 4 Ω · 100 W · 94.1 dB

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	25 Hz
Qts	0.261
Qes	0.27
Qms	8.1
Vas	112 L
Sd	340 cm²
Xmax	5 mm
Re	3.2 Ω
Bl	10.4 T·m
Mms	58.6 g
Pe	100 W
Sensitivity	94.1 dB

Alignment hint

EBP	93 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 17.7 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
Vifa M26WR09-04	27 +2	0.28 +0.02	113 +1	6.5 +1.5	93 -1.1	close	8 Ω vs 4 Ω: amp load changes	+
Axon 10K01	25 =	0.286 +0.02	104.6 -7.4	7 +2	92.9 -1.2	close		+
Audiotechnology 10C772510KAP	25 =	0.24 -0.02	110 -2	8.6 +3.6	92.1 -2	close	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio RS270P-4A	22.9 -2.1	0.272 +0.01	110.5 -1.5	6 +1	91 -3.1	close		+
Audiotechnology FLEXUNIT 10A772510	25 =	0.258 =	140 +28	8.6 +3.6	92.5 -1.6	close	8 Ω vs 4 Ω: amp load changes	+
Audiotechnology FLEXUNITS 10 C 77 25 10 KAP	25 =	0.24 -0.02	110 -2	8.6 +3.6	90.2 -3.9	close	8 Ω vs 4 Ω: amp load changes	+
Visaton GF 250	26 +1	0.289 +0.03	110 -2	8.3 +3.3	96.9 +2.8	close	2 Ω vs 4 Ω: amp load changes	+
ATC SB75-234 LC	26 +1	0.224 -0.04	120 +8	5 =	91.8 -2.3	close	8 Ω vs 4 Ω: amp load changes · 75 W vs 100 W: lower power handling	+
HiVi S10IIP	27 +2	0.287 +0.03	98.1 -13.9	7 +2	92.9 -1.2	close	8 Ω vs 4 Ω: amp load changes	+
Focal 10K 6411	28.3 +3.3	0.291 +0.03	124.1 +12.1	8 +3	93.6 -0.5	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the PR240Z2 →

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.