Audax PR240T4

10" · 8 Ω · 100 W · 100.4 dB

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	30 Hz
Qts	0.1
Qes	0.103
Qms	3.9
Vas	206 L
Sd	360 cm²
Xmax	3 mm
Re	6.2 Ω
Bl	16.8 T·m
Mms	24.8 g
Pe	100 W
Sensitivity	100.4 dB

Alignment hint

EBP	291 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 4.2 L

EBP > 100: favours a ported (bass-reflex) 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
Audax MHD24P66USM2CA14	27 -3	0.137 +0.04	157.6 -48.4	3.2 +0.2	96.5 -3.9	usable		+
ATC SB75-234 LC vp old stock	26 -4	0.121 +0.02	120 -86	2.4 -0.6	92.6 -7.8	risky	75 W vs 100 W: lower power handling · Xmax 2.4 mm < 3 mm: lower excursion-limited SPL	+
Tannoy HPD 295	26 -4	0.233 +0.13	200 -6	3 =	94.7 -5.7	risky	50 W vs 100 W: lower power handling	+
Tannoy MONITOR GOLD 10 III-LZ	26 -4	0.23 +0.13	200 -6	2.9 -0.1	94.7 -5.7	risky	15 W vs 100 W: lower power handling · Xmax 2.9 mm < 3 mm: lower excursion-limited SPL	+
SEAS 25F-EWX 4	25 -5	0.217 +0.12	175 -31	4 +1	96.7 -3.7	risky	4 Ω vs 8 Ω: amp load changes · 60 W vs 100 W: lower power handling	+
Tannoy 250/HF/III-L-Z/8/U	26 -4	0.233 +0.13	200 -6	4 +1	94.7 -5.7	risky	30 W vs 100 W: lower power handling	+
HiVi S10II	20 -10	0.171 +0.07	219.3 +13.3	7 +4	94.7 -5.7	risky		+
Focal 10C01 v1	25.7 -4.3	0.199 +0.1	288 +82	5.5 +2.5	96.7 -3.7	risky	60 W vs 100 W: lower power handling	+
Focal 10C01 v3	25.7 -4.3	0.199 +0.1	288 +82	5.5 +2.5	96.6 -3.8	risky	60 W vs 100 W: lower power handling	+
Focal 10C01-T	29 -1	0.237 +0.14	175.6 -30.4	5.5 +2.5	95.4 -5	risky	60 W vs 100 W: lower power handling	+

Compare the closest 3 against the PR240T4 →

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.