B&C 8FG64

8" · 8 Ω · 300 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size	8"
Impedance	8 Ω
Fs	51 Hz
Qts	0.31
Qes	0.32
Qms	10.1
Vas	15 L
Sd	220 cm²
Xmax	7 mm
Re	5.8 Ω
Bl	15.8 T·m
Mms	41 g
Pe	300 W
Sensitivity	92 dB

Alignment hint

EBP	159 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 3.6 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
B&C 8FG64	53 +2	0.35 +0.04	16.9 +1.9	7.5 +0.5	92 =	close	16 Ω vs 8 Ω: amp load changes	+
Faital PRO 8RS250	56 +5	0.32 +0.01	18.3 +3.3	6.92 -0.08	93 +1	close	200 W vs 300 W: lower power handling · Xmax 6.92 mm < 7 mm: lower excursion-limited SPL	+
Oberton 8MB201	67.7 +16.7	0.314 =	14.74 -0.26	7 =	93 +1	close	200 W vs 300 W: lower power handling	+
B&C 8FG51	49 -2	0.32 +0.01	20 +5	6.5 -0.5	93 +1	close	Xmax 6.5 mm < 7 mm: lower excursion-limited SPL	+
Faital PRO 8PR210	65 +14	0.34 +0.03	15.7 +0.7	7.17 +0.17	94 +2	usable	16 Ω vs 8 Ω: amp load changes · 200 W vs 300 W: lower power handling	+
Faital PRO 8PR210	65 +14	0.29 -0.02	15.4 +0.4	6.92 -0.08	95 +3	usable	200 W vs 300 W: lower power handling · Xmax 6.92 mm < 7 mm: lower excursion-limited SPL	+
B&C 8BG51	52 +1	0.4 +0.09	18 +3	6.5 -0.5	92 =	usable	Xmax 6.5 mm < 7 mm: lower excursion-limited SPL	+
Sica 8 S 2.5 CP	54 +3	0.33 +0.02	18.6 +3.6	5 -2	93 +1	usable	Xmax 5 mm < 7 mm: lower excursion-limited SPL	+
Beyma 8WRS300	65 +14	0.28 -0.03	15 =	6 -1	95 +3	usable	Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
Faital PRO 8PR200	58 +7	0.37 +0.06	16.9 +1.9	8.15 +1.15	95 +3	usable	200 W vs 300 W: lower power handling	+

Compare the closest 3 against the 8FG64 →

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.