Sica 8 S 2.5 CP

8" · 8 Ω · 300 W · 93 dB · datasheet ↗

Thiele-Small parameters

Nominal size	8"
Impedance	8 Ω
Fs	54 Hz
Qts	0.33
Qes	0.37
Qms	3.44
Vas	18.6 L
Sd	213.8 cm²
Xmax	5 mm
Re	5.1 Ω
Bl	11.9 T·m
Mms	30.3 g
Pe	300 W
Sensitivity	93 dB

Alignment hint

EBP	146 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 5.2 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 8RS250	56 +2	0.32 -0.01	18.3 -0.3	6.92 +1.92	93 =	close	200 W vs 300 W: lower power handling	+
B&C 8FG51	49 -5	0.32 -0.01	20 +1.4	6.5 +1.5	93 =	close		+
B&C 8FG64	53 -1	0.35 +0.02	16.9 -1.7	7.5 +2.5	92 -1	close	16 Ω vs 8 Ω: amp load changes	+
B&C 8BG51	52 -2	0.4 +0.07	18 -0.6	6.5 +1.5	92 -1	close		+
Beyma 8"P300Fe/N	53 -1	0.31 -0.02	24.8 +6.2	6 +1	94 +1	close		+
B&C 8FG64	51 -3	0.31 -0.02	15 -3.6	7 +2	92 -1	close		+
Faital PRO 8PR200	58 +4	0.37 +0.04	16.9 -1.7	8.15 +3.15	95 +2	usable	200 W vs 300 W: lower power handling	+
Faital PRO 8PR210	65 +11	0.34 +0.01	15.7 -2.9	7.17 +2.17	94 +1	usable	16 Ω vs 8 Ω: amp load changes · 200 W vs 300 W: lower power handling	+
Sica 8 Fe 2 CP	67 +13	0.32 -0.01	16.9 -1.7	4.5 -0.5	94.6 +1.6	usable	200 W vs 300 W: lower power handling · Xmax 4.5 mm < 5 mm: lower excursion-limited SPL	+
Sica 8 L 2 SL	64 +10	0.32 -0.01	18.2 -0.4	3.5 -1.5	94.5 +1.5	usable	200 W vs 300 W: lower power handling · Xmax 3.5 mm < 5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 8 S 2.5 CP →

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.