Oberton 12NMB35

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

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	54.42 Hz
Qts	0.36
Qes	0.38
Qms	7.41
Vas	54.29 L
Sd	514.7 cm²
Xmax	6.75 mm
Re	5.5 Ω
Bl	17 T·m
Mms	58.28 g
Pe	600 W
Sensitivity	99 dB

Alignment hint

EBP	143 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 19 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
18 Sound 12W700	58 +3.58	0.36 =	55 +0.71	6.5 -0.25	98 -1	close	450 W vs 600 W: lower power handling · Xmax 6.5 mm < 6.75 mm: lower excursion-limited SPL	+
Beyma 12MCS500	57 +2.58	0.36 =	57 +2.71	8 +1.25	98 -1	close		+
SB Audience NERO-12MWN700D vp JustDiyIt	54.4 -0.02	0.347 -0.01	53.6 -0.69	6.2 -0.55	97.5 -1.5	close	Xmax 6.2 mm < 6.75 mm: lower excursion-limited SPL	+
Beyma 12"MC500	57 +2.58	0.34 -0.02	57 +2.71	8 +1.25	98 -1	close		+
B&C 12NDL88	50 -4.42	0.37 +0.01	55 +0.71	8 +1.25	97 -2	close	16 Ω vs 8 Ω: amp load changes	+
PD PD 124NR1	58 +3.58	0.354 -0.01	49 -5.29	7.4 +0.65	97.3 -1.7	close		+
Precision Devices PD 124NR1	58 +3.58	0.354 -0.01	49 -5.29	7.4 +0.65	97.3 -1.7	close		+
Beyma 12MC500	57 +2.58	0.373 +0.01	54.9 +0.61	5.5 -1.25	97.8 -1.2	close	Xmax 5.5 mm < 6.75 mm: lower excursion-limited SPL	+
18 Sound 12W750	55 +0.58	0.33 -0.03	61 +6.71	8 +1.25	98 -1	close	16 Ω vs 8 Ω: amp load changes	+
18 Sound 12NW350	54 -0.42	0.34 -0.02	46 -8.29	8.3 +1.55	98 -1	close		+

Compare the closest 3 against the 12NMB35 →

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.