Sica 12 SR 3 PL

12" · 8 Ω · 400 W · 91.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	36 Hz
Qts	0.42
Qes	0.45
Qms	5.9
Vas	60.4 L
Sd	490.9 cm²
Xmax	7 mm
Re	5.3 Ω
Bl	17.02 T·m
Mms	108.5 g
Pe	400 W
Sensitivity	91.8 dB

Alignment hint

EBP	80 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 32.9 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 PL v2018	36 =	0.418 =	60.4 =	7 =	91.7 -0.1	close		+
Sica 12 SR 3 CP	37 +1	0.4 -0.02	60.9 +0.5	8 +1	92.2 +0.4	close		+
Celestion FTR12-4080DL/4	35.3 -0.7	0.428 +0.01	51.4 -9	8 +1	92.5 +0.7	close	4 Ω vs 8 Ω: amp load changes	+
Pioneer TS-W306C	32.6 -3.4	0.414 -0.01	55.6 -4.8	8.1 +1.1	92.8 +1	close	4 Ω vs 8 Ω: amp load changes	+
Lavoce SSF122.50L	41 +5	0.41 -0.01	59 -1.4	11.5 +4.5	91.3 -0.5	close		+
SICA 12 SR 3 CP v2018	36.8 +0.8	0.387 -0.03	64 +3.6	6 -1	92.5 +0.7	close	Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
PHL Audio 4021	35.4 -0.6	0.367 -0.05	55.2 -5.2	6.5 -0.5	91.6 -0.2	close	Xmax 6.5 mm < 7 mm: lower excursion-limited SPL	+
18 Sound 12NTLS3500	41 +5	0.41 -0.01	65 +4.6	7.9 +0.9	93.5 +1.7	close		+
SICA SAMPLE 7161	35.2 -0.8	0.437 +0.02	79.6 +19.2	8 +1	91.7 -0.1	close		+
Kenwood KFC-W3009	32 -4	0.42 =	63.93 +3.53	8 +1	88.7 -3.1	close	4 Ω vs 8 Ω: amp load changes · 200 W vs 400 W: lower power handling	+

Compare the closest 3 against the 12 SR 3 PL →

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.