Sica 12 PFS 3

12" · 8 Ω · 500 W · 93.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	43 Hz
Qts	0.47
Qes	0.51
Qms	5.35
Vas	58.5 L
Sd	530.9 cm²
Xmax	7 mm
Re	5.1 Ω
Bl	15.89 T·m
Mms	93.7 g
Pe	500 W
Sensitivity	93.6 dB

Alignment hint

EBP	84 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 46.3 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
JBL 1200 GTI	37 -6	0.47 =	56.7 -1.8	8 +1	94.5 +0.9	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 12NTLS3500	41 -2	0.41 -0.06	65 +6.5	7.9 +0.9	93.5 -0.1	close		+
Beyma 12CMV2	49 +6	0.47 =	76 +17.5	7 =	94 +0.4	close	320 W vs 500 W: lower power handling	+
18 Sound 12NLW9300 v2022	47 +4	0.416 -0.05	56 -2.5	8 +1	95.4 +1.8	close		+
Beyma 112Nd/W	48 +5	0.415 -0.05	55 -3.5	7.4 +0.4	95 +1.4	close		+
Lavoce SSF122.50L	41 -2	0.41 -0.06	59 +0.5	11.5 +4.5	91.3 -2.3	close		+
Bravox UXP12D-4	32 -11	0.496 +0.03	58 -0.5	7.5 +0.5	94.1 +0.5	close	2 Ω vs 8 Ω: amp load changes	+
Ciare HSB322-22 vp	42.5 -0.5	0.484 +0.01	77 +18.5	7.3 +0.3	96.4 +2.8	close	4 Ω vs 8 Ω: amp load changes · 350 W vs 500 W: lower power handling	+
Sica 12 SR 3 PL	36 -7	0.42 -0.05	60.4 +1.9	7 =	91.8 -1.8	usable		+
Elder Audio 12LB075-UMOD	40 -3	0.472 =	73 +14.5	5.5 -1.5	93.1 -0.5	usable	280 W vs 500 W: lower power handling · Xmax 5.5 mm < 7 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12 PFS 3 →

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.