B&C 12NW76

12" · 8 Ω · 500 W · 98.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	40 Hz
Qts	0.16
Qes	0.17
Qms	3.7
Vas	76 L
Sd	522 cm²
Xmax	8 mm
Re	5.3 Ω
Bl	25.5 T·m
Mms	77 g
Pe	500 W
Sensitivity	98.5 dB

Alignment hint

EBP	235 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 4.1 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 12NW76	43 +3	0.15 -0.01	64.5 -11.5	8 =	98 -0.5	close	4 Ω vs 8 Ω: amp load changes	+
B&C 12 NW 76	40 =	0.163 =	76 =	4.8 -3.2	98.3 -0.2	close	Xmax 4.8 mm < 8 mm: lower excursion-limited SPL	+
Oberton 12NB400	43.58 +3.58	0.18 +0.02	70.45 -5.55	5.25 -2.75	98 -0.5	usable	Xmax 5.25 mm < 8 mm: lower excursion-limited SPL	+
Oberton 12NB450	46.46 +6.46	0.204 +0.04	72.57 -3.43	7.75 -0.25	100 +1.5	usable	Xmax 7.75 mm < 8 mm: lower excursion-limited SPL	+
Oberton 12NMB600	41.03 +1.03	0.134 -0.03	70.8 -5.2	5.25 -2.75	99 +0.5	usable	Xmax 5.25 mm < 8 mm: lower excursion-limited SPL	+
Beyma 12P80/Fe	46 +6	0.186 +0.03	75.6 -0.4	5.6 -2.4	99.8 +1.3	usable	Xmax 5.6 mm < 8 mm: lower excursion-limited SPL	+
BMS 12N820	37.8 -2.2	0.16 =	98.7 +22.7	4.5 -3.5	98 -0.5	usable	Xmax 4.5 mm < 8 mm: lower excursion-limited SPL	+
RCF L 12P300	40 =	0.242 +0.08	81 +5	7.8 -0.2	96.7 -1.8	usable	Xmax 7.8 mm < 8 mm: lower excursion-limited SPL	+
RCF L 12P301	43 +3	0.219 +0.06	97 +21	7.8 -0.2	98.6 +0.1	usable	Xmax 7.8 mm < 8 mm: lower excursion-limited SPL	+
Faital PRO 12FH500	45 +5	0.22 +0.06	80.3 +4.3	7.25 -0.75	97 -1.5	usable	4 Ω vs 8 Ω: amp load changes · Xmax 7.25 mm < 8 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12NW76 →

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.