SICA 12SR3PL

12" · 4 Ω · 400 W · 94.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	27.4 Hz
Qts	0.27
Qes	0.28
Qms	7.48
Vas	103.1 L
Sd	467.6 cm²
Xmax	7 mm
Re	3.15 Ω
Bl	13.9 T·m
Mms	100.3 g
Pe	400 W
Sensitivity	94.8 dB

Alignment hint

EBP	98 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 17.6 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
Beyma POWER 12 COMPETITION	29 +1.6	0.27 =	122 +18.9	9 +2	95.1 +0.3	close	8 Ω vs 4 Ω: amp load changes	+
Magnat SUB 300 SUPREME	30 +2.6	0.289 +0.02	110 +6.9	7.6 +0.6	95.5 +0.7	close	300 W vs 400 W: lower power handling	+
PHL Audio 4021 v2017	30 +2.6	0.281 +0.01	96 -7.1	7 =	93 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
Mivoc AW 3000	27 -0.4	0.305 +0.03	97 -6.1	5.9 -1.1	93.9 -0.9	close	180 W vs 400 W: lower power handling · Xmax 5.9 mm < 7 mm: lower excursion-limited SPL	+
JBL 1200FE-8	27 -0.4	0.256 -0.01	125 +21.9	10 +3	93.3 -1.5	close	8 Ω vs 4 Ω: amp load changes	+
Raveland BSW 124-II	28 +0.6	0.252 -0.02	91.4 -11.7	5.4 -1.6	94.7 -0.1	close	200 W vs 400 W: lower power handling · Xmax 5.4 mm < 7 mm: lower excursion-limited SPL	+
Atohm D300P04	26.5 -0.9	0.33 +0.06	104 +0.9	7 =	93 -1.8	close	200 W vs 400 W: lower power handling	+
SICA 12 SR 3 PL vp	28.7 +1.3	0.317 +0.05	101.2 -1.9	7 =	92.4 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
MAG Audio SUB 300	30.3 +2.9	0.323 +0.05	110.7 +7.6	7.4 +0.4	95.1 +0.3	close	300 W vs 400 W: lower power handling	+
PHL Audio 4020	29 +1.6	0.299 +0.03	92 -11.1	7 =	92.1 -2.7	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 12SR3PL →

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.