SICA 12 SR 3 CP v2020

12" · 8 Ω · 350 W · 92.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	37.8 Hz
Qts	0.402
Qes	0.46
Qms	3.2
Vas	60.5 L
Sd	490.9 cm²
Xmax	5 mm
Re	5.1 Ω
Bl	16.1 T·m
Mms	99 g
Pe	350 W
Sensitivity	92.5 dB

Alignment hint

EBP	82 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 28.9 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 12 SR 3 CP	37 -0.8	0.4 =	60.9 +0.4	8 +3	92.2 -0.3	close		+
SICA 12 SR 3 CP v2018	36.8 -1	0.387 -0.02	64 +3.5	6 +1	92.5 =	close		+
SICA 12 SR 3 PL v2018	36 -1.8	0.418 +0.02	60.4 -0.1	7 +2	91.7 -0.8	close		+
Sica 12 SR 3 PL	36 -1.8	0.42 +0.02	60.4 -0.1	7 +2	91.8 -0.7	close		+
Focal 30A1	37.4 -0.4	0.42 +0.02	53 -7.5	5.2 +0.2	93.9 +1.4	close	4 Ω vs 8 Ω: amp load changes · 250 W vs 350 W: lower power handling	+
Focal ACCESS 30 A1	37.4 -0.4	0.42 +0.02	53 -7.5	5.2 +0.2	93.9 +1.4	close	4 Ω vs 8 Ω: amp load changes · 250 W vs 350 W: lower power handling	+
Focal 33K	38.4 +0.6	0.415 +0.01	51.1 -9.4	5.9 +0.9	93.5 +1	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 12NTLS3500	41 +3.2	0.41 +0.01	65 +4.5	7.9 +2.9	93.5 +1	close		+
Celestion CF1230BMB	43 +5.2	0.381 -0.02	60.7 +0.2	5.5 +0.5	94 +1.5	close		+
Tang Band WQ-1814S	35 -2.8	0.427 +0.02	61 +0.5	4 -1	92.6 +0.1	close	4 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12 SR 3 CP v2020 →

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.