Oberton 8NM201

8" · 8 Ω · 200 W · 98 dB · datasheet ↗

Thiele-Small parameters

Nominal size	8"
Impedance	8 Ω
Fs	102.81 Hz
Qts	0.286
Qes	0.294
Qms	10.97
Vas	8.07 L
Sd	202 cm²
Xmax	2.75 mm
Re	5.15 Ω
Bl	13.71 T·m
Mms	16.6 g
Pe	200 W
Sensitivity	98 dB

Alignment hint

EBP	350 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 1.6 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
18 Sound 8MB710	108 +5.19	0.32 +0.03	9 +0.93	2.25 -0.5	99.5 +1.5	usable	Xmax 2.25 mm < 2.75 mm: lower excursion-limited SPL	+
18 Sound 8MB720	108 +5.19	0.32 +0.03	9 +0.93	2.25 -0.5	99.5 +1.5	usable	Xmax 2.25 mm < 2.75 mm: lower excursion-limited SPL	+
18 Sound 8NMB750	88 -14.81	0.27 -0.02	6.9 -1.17	6.1 +3.35	96.5 -1.5	usable		+
BMS 8N515	87.7 -15.11	0.3 +0.01	11.04 +2.97	4 +1.25	96 -2	usable		+
LaVoce WAN082.01	85 -17.81	0.32 +0.03	9 +0.93	5.8 +3.05	96 -2	usable		+
BMS 8S215	87.7 -15.11	0.31 +0.02	11.04 +2.97	4.25 +1.5	96 -2	usable		+
B&C 8NDL64	80 -22.81	0.25 -0.04	9.6 +1.53	4.5 +1.75	97 -1	usable		+
Faital PRO 8PR155	85 -17.81	0.37 +0.08	9.4 +1.33	3.57 +0.82	97 -1	usable		+
LaVoce MAF082.00-16	88 -14.81	0.24 -0.05	10.89 +2.82	2.3 -0.45	98.5 +0.5	usable	16 Ω vs 8 Ω: amp load changes · Xmax 2.3 mm < 2.75 mm: lower excursion-limited SPL	+
Oberton 8NM250v2	67.7 -35.11	0.252 -0.03	8.39 +0.32	4 +1.25	100 +2	usable	16 Ω vs 8 Ω: amp load changes	+

Compare the closest 3 against the 8NM201 →

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.