Sica 12 K 4 PL

12" · 8 Ω · 1000 W · 97.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	48.5 Hz
Qts	0.25
Qes	0.27
Qms	4.2
Vas	47.4 L
Sd	530.9 cm²
Xmax	7 mm
Re	5.1 Ω
Bl	22.85 T·m
Mms	91 g
Pe	1000 W
Sensitivity	97.1 dB

Alignment hint

EBP	180 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 6.8 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
Faital PRO 12FX600	48 -0.5	0.24 -0.01	44.4 -3	9.9 +2.9	97 -0.1	close	700 W vs 1000 W: lower power handling	+
Beyma 12 P1000/Nd	47 -1.5	0.26 +0.01	49 +1.6	8 +1	96 -1.1	close		+
SICA 12 K 4 PL 2000W	48 -0.5	0.24 -0.01	46.3 -1.1	7 =	94.9 -2.2	close		+
B&C 12NDL88	48 -0.5	0.24 -0.01	57 +9.6	8 +1	97 -0.1	close	4 Ω vs 8 Ω: amp load changes · 700 W vs 1000 W: lower power handling	+
Beyma 12SW1300ND	45 -3.5	0.264 +0.01	45 -2.4	7 =	95.9 -1.2	close		+
Beyma 12P1000ND	47 -1.5	0.26 +0.01	49 +1.6	8 +1	94.6 -2.5	close	450 W vs 1000 W: lower power handling	+
Oberton 12MB35	51.43 +2.93	0.267 +0.02	50.07 +2.67	6.75 -0.25	98 +0.9	close	700 W vs 1000 W: lower power handling · Xmax 6.75 mm < 7 mm: lower excursion-limited SPL	+
RCF LF12X401	45 -3.5	0.27 +0.02	50 +2.6	9 +2	96.5 -0.6	close		+
B&C 12NDL88	51 +2.5	0.27 +0.02	52 +4.6	8 +1	98 +0.9	close	700 W vs 1000 W: lower power handling	+
B&C 12NDL88-4	48 -0.5	0.24 -0.01	57 +9.6	8 +1	95.9 -1.2	close	4 Ω vs 8 Ω: amp load changes · 700 W vs 1000 W: lower power handling	+

Compare the closest 3 against the 12 K 4 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.