SICA 12 D 1.5 CS 8 Ohms

12" · 8 Ω · 100 W · 96.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	62 Hz
Qts	0.748
Qes	0.78
Qms	18.3
Vas	63.5 L
Sd	490.9 cm²
Xmax	2.7 mm
Re	5.1 Ω
Bl	9.4 T·m
Mms	35.1 g
Pe	100 W
Sensitivity	96.8 dB

Alignment hint

EBP	79 · flexible
Sealed Vb (Qtc ≈ 0.71)	Qts too high

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 D 1.5 CS	62 =	0.75 =	63.5 =	2.7 =	96.9 +0.1	close		+
Celestion TF 1215	62 =	0.857 +0.11	69 +5.5	2.5 -0.2	96.2 -0.6	close	Xmax 2.5 mm < 2.7 mm: lower excursion-limited SPL	+
Peavey S-12825	59.4 -2.6	0.611 -0.14	66.6 +3.1	2.5 -0.2	96.8 =	close	Xmax 2.5 mm < 2.7 mm: lower excursion-limited SPL	+
Siare 31TE vp	53.4 -8.6	0.746 =	62 -1.5	4.1 +1.4	93.8 -3	close		+
Mercuriale PTR 306 M0	58 -4	0.808 +0.06	70.1 +6.6	3.9 +1.2	94.6 -2.2	close		+
Siemens KL405	75.8 +13.8	0.77 +0.02	68 +4.5	3 +0.3	99.2 +2.4	usable		+
Faital PRO 12PR310	55 -7	0.67 -0.08	65.1 +1.6	4.92 +2.22	98 +1.2	usable	16 Ω vs 8 Ω: amp load changes	+
Fane 12-100TC	56 -6	0.779 +0.03	56.1 -7.4	2.5 -0.2	93.5 -3.3	usable	Xmax 2.5 mm < 2.7 mm: lower excursion-limited SPL	+
P.Audio E12-200S v2024	59 -3	0.569 -0.18	62 -1.5	4.1 +1.4	96.4 -0.4	usable		+
RCF L 12/565K	63 +1	0.56 -0.19	57 -6.5	2.9 +0.2	97.3 +0.5	usable		+

Compare the closest 3 against the 12 D 1.5 CS 8 Ohms →

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.