Oberton 12NMB600

12" · 8 Ω · 600 W · 99 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	41.03 Hz
Qts	0.134
Qes	0.137
Qms	4.77
Vas	70.8 L
Sd	514.7 cm²
Xmax	5.25 mm
Re	5.23 Ω
Bl	27.77 T·m
Mms	78.61 g
Pe	600 W
Sensitivity	99 dB

Alignment hint

EBP	299 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 2.6 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 12NW76	43 +1.97	0.15 +0.02	64.5 -6.3	8 +2.75	98 -1	close	4 Ω vs 8 Ω: amp load changes	+
B&C 12NW76	40 -1.03	0.16 +0.03	76 +5.2	8 +2.75	98.5 -0.5	close		+
B&C 12 NW 76	40 -1.03	0.163 +0.03	76 +5.2	4.8 -0.45	98.3 -0.7	close	Xmax 4.8 mm < 5.25 mm: lower excursion-limited SPL	+
Oberton 12NB400	43.58 +2.55	0.18 +0.05	70.45 -0.35	5.25 =	98 -1	usable	450 W vs 600 W: lower power handling	+
Beyma 12P80Nd	45 +3.97	0.147 +0.01	95.7 +24.9	5.5 +0.25	101.5 +2.5	usable		+
Beyma 12P80/Fe	46 +4.97	0.186 +0.05	75.6 +4.8	5.6 +0.35	99.8 +0.8	usable		+
JBL 2254J	46.6 +5.57	0.159 +0.02	73.6 +2.8	3.9 -1.35	97 -2	usable	16 Ω vs 8 Ω: amp load changes · Xmax 3.9 mm < 5.25 mm: lower excursion-limited SPL	+
P.Audio SN-12B	48.4 +7.37	0.16 +0.03	68 -2.8	3.5 -1.75	98.6 -0.4	usable	300 W vs 600 W: lower power handling · Xmax 3.5 mm < 5.25 mm: lower excursion-limited SPL	+
Beyma 12P80ND V2	50 +8.97	0.163 +0.03	65 -5.8	4.5 -0.75	100.7 +1.7	usable	Xmax 4.5 mm < 5.25 mm: lower excursion-limited SPL	+
B&C 12NDL76	50 +8.97	0.19 +0.06	70 -0.8	6 +0.75	100 +1	usable	4 Ω vs 8 Ω: amp load changes · 400 W vs 600 W: lower power handling	+

Compare the closest 3 against the 12NMB600 →

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.