SICA 15 E 3 CS

15" · 8 Ω · 350 W · 98.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	43.1 Hz
Qts	0.36
Qes	0.37
Qms	13
Vas	171.3 L
Sd	754.8 cm²
Xmax	2.5 mm
Re	6.66 Ω
Bl	17.6 T·m
Mms	63.6 g
Pe	350 W
Sensitivity	98.5 dB

Alignment hint

EBP	116 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 59.9 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
Focal 15PR75-212	42 -1.1	0.36 =	162 -9.3	4.4 +1.9	98.3 -0.2	close	212 W vs 350 W: lower power handling	+
Beyma 15BBB	42 -1.1	0.38 +0.02	176 +4.7	3.3 +0.8	99.2 +0.7	close	150 W vs 350 W: lower power handling	+
Jensen NEO 15-300	42.8 -0.3	0.34 -0.02	194.3 +23	2.5 =	99.2 +0.7	close		+
Focal 15PR75-225	43.5 +0.4	0.351 -0.01	155 -16.3	4.3 +1.8	98.7 +0.2	close	225 W vs 350 W: lower power handling	+
ATC PA75-375 BASS	41 -2.1	0.351 -0.01	155 -16.3	2.4 -0.1	97.5 -1	close	75 W vs 350 W: lower power handling · Xmax 2.4 mm < 2.5 mm: lower excursion-limited SPL	+
P.Audio C15-400B	42.9 -0.2	0.329 -0.03	177.3 +6	3.3 +0.8	99.8 +1.3	close		+
P.Audio 15BM-500B	41 -2.1	0.374 +0.01	183.4 +12.1	4.8 +2.3	98.5 =	close		+
Celestion FTR15 3070C vp	41.4 -1.7	0.382 +0.02	187.6 +16.3	3 +0.5	97.7 -0.8	close		+
ATC PA75-375	41 -2.1	0.35 -0.01	155 -16.3	2.7 +0.2	96.9 -1.6	close	75 W vs 350 W: lower power handling	+
Celestion FTR15-3070C	40 -3.1	0.361 =	208 +36.7	3 +0.5	98.3 -0.2	close		+

Compare the closest 3 against the 15 E 3 CS →

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.