SICA 10 SR 2 CP 4 Ohms

10" · 4 Ω · 150 W · 93.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	35.3 Hz
Qts	0.396
Qes	0.42
Qms	6.87
Vas	54.9 L
Sd	353 cm²
Xmax	5.3 mm
Re	3.28 Ω
Bl	10.6 T·m
Mms	64.7 g
Pe	150 W
Sensitivity	93.4 dB

Alignment hint

EBP	84 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 25.1 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
SICA 10 SR 2.5 CP 4 Ohms	35.3 =	0.396 =	54.9 =	5.3 =	93.4 =	close		+
Soundstream SS-10R	35 -0.3	0.375 -0.02	51 -3.9	6 +0.7	93.7 +0.3	close		+
Dayton Audio SIG270-4	35 -0.3	0.413 +0.02	58.3 +3.4	4.8 -0.5	92.8 -0.6	close	Xmax 4.8 mm < 5.3 mm: lower excursion-limited SPL	+
Volt DVC251.7	32 -3.3	0.387 -0.01	53 -1.9	7.8 +2.5	92.6 -0.8	close		+
SICA 10 H 2 CS 8 Ohms	36 +0.7	0.393 =	65.4 +10.5	6 +0.7	91.8 -1.6	close	8 Ω vs 4 Ω: amp load changes	+
SICA 10 SR 2 PL Z006004	33.6 -1.7	0.423 +0.03	66.5 +11.6	6.5 +1.2	93.3 -0.1	close		+
Cobalt CS 10 DVC parallele	30 -5.3	0.387 -0.01	60 +5.1	6 +0.7	94.3 +0.9	close	2 Ω vs 4 Ω: amp load changes	+
Focal 11K 7512	38 +2.7	0.353 -0.04	51.9 -3	5.3 =	91.6 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 10FE330	35 -0.3	0.4 =	72.4 +17.5	8.32 +3.02	92 -1.4	close	8 Ω vs 4 Ω: amp load changes	+
Davis 25GC10R	37.2 +1.9	0.397 =	80.9 +26	5.7 +0.4	93.5 +0.1	close	8 Ω vs 4 Ω: amp load changes · 100 W vs 150 W: lower power handling	+

Compare the closest 3 against the 10 SR 2 CP 4 Ohms →

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.