B&C 12FL76

12" · 8 Ω · 400 W · 97.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	50 Hz
Qts	0.3
Qes	0.32
Qms	5.8
Vas	57 L
Sd	522 cm²
Xmax	6 mm
Re	5.4 Ω
Bl	18.7 T·m
Mms	64 g
Pe	400 W
Sensitivity	97.5 dB

Alignment hint

EBP	156 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 12.5 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
DAS Audio 12H	48 -2	0.302 =	57 =	5.9 -0.1	96.1 -1.4	close	Xmax 5.9 mm < 6 mm: lower excursion-limited SPL	+
18 Sound 12NTLW2500	52 +2	0.31 +0.01	52.7 -4.3	7.6 +1.6	97.5 =	close	4 Ω vs 8 Ω: amp load changes	+
Precision Devices PD 12SB30	50.2 +0.2	0.297 =	59 +2	4.8 -1.2	97.4 -0.1	close	Xmax 4.8 mm < 6 mm: lower excursion-limited SPL	+
JBL 2206H	52 +2	0.316 +0.02	62.3 +5.3	5.9 -0.1	97.9 +0.4	close	Xmax 5.9 mm < 6 mm: lower excursion-limited SPL	+
Beyma 12MCB700	51 +1	0.27 -0.03	59.5 +2.5	7 +1	98 +0.5	close		+
Fane Colossus 12MB	55 +5	0.286 -0.01	56 -1	5.5 -0.5	98 +0.5	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
B&C 12 NDL 88	51 +1	0.274 -0.03	52 -5	5.7 -0.3	97.8 +0.3	close	Xmax 5.7 mm < 6 mm: lower excursion-limited SPL	+
18 Sound 12LW1400	45 -5	0.3 =	55 -2	8.25 +2.25	96 -1.5	close		+
RCF MB 12X301	50 =	0.29 -0.01	70 +13	5.9 -0.1	98.3 +0.8	close	Xmax 5.9 mm < 6 mm: lower excursion-limited SPL	+
LaVoce WSN122.50-4	49 -1	0.29 -0.01	64.43 +7.43	5.3 -0.7	97 -0.5	close	4 Ω vs 8 Ω: amp load changes · 250 W vs 400 W: lower power handling · Xmax 5.3 mm < 6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12FL76 →

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.