B&C 12FW76

12" · 8 Ω · 500 W · 100 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	54 Hz
Qts	0.18
Qes	0.18
Qms	3.8
Vas	45 L
Sd	522 cm²
Xmax	7 mm
Re	5.1 Ω
Bl	26.4 T·m
Mms	75 g
Pe	500 W
Sensitivity	100 dB

Alignment hint

EBP	300 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 3.1 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 12FW76	54 =	0.18 =	48.5 +3.5	7 =	99 -1	close	4 Ω vs 8 Ω: amp load changes	+
RCF CX12N351	58 +4	0.2 +0.02	47 +2	6 -1	98.2 -1.8	close	90 W vs 500 W: lower power handling · Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
RCF MB 12N405	52 -2	0.203 +0.02	53 +8	5.7 -1.3	99.5 -0.5	usable	Xmax 5.7 mm < 7 mm: lower excursion-limited SPL	+
B&C 12 FW 76	54 =	0.172 -0.01	45 =	3.3 -3.7	99.9 -0.1	usable	Xmax 3.3 mm < 7 mm: lower excursion-limited SPL	+
18 Sound 12ND940	49 -5	0.2 +0.02	64.8 +19.8	7.6 +0.6	100 =	usable		+
Precision Devices PD121	59 +5	0.201 +0.02	54 +9	5 -2	100 =	usable	16 Ω vs 8 Ω: amp load changes · 300 W vs 500 W: lower power handling · Xmax 5 mm < 7 mm: lower excursion-limited SPL	+
B&C 12NDL76	50 -4	0.19 +0.01	70 +25	6 -1	100 =	usable	4 Ω vs 8 Ω: amp load changes · Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
B&C 12NDL76	50 -4	0.2 +0.02	73 +28	7 =	100 =	usable		+
Sica 12 F 4 CP	46 -8	0.2 +0.02	52 +7	6 -1	97.8 -2.2	usable	Xmax 6 mm < 7 mm: lower excursion-limited SPL	+
B&C 12MH32	53 -1	0.19 +0.01	63 +18	5 -2	101 +1	usable	Xmax 5 mm < 7 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12FW76 →

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.