Oberton 15NB500

15" · 8 Ω · 500 W · 99 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	42.77 Hz
Qts	0.255
Qes	0.26
Qms	11.97
Vas	121.46 L
Sd	829.6 cm²
Xmax	7.25 mm
Re	5.23 Ω
Bl	24.31 T·m
Mms	109.57 g
Pe	500 W
Sensitivity	99 dB

Alignment hint

EBP	165 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 18.2 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 15LW1410	42 -0.77	0.27 +0.02	131 +9.54	8.5 +1.25	98.5 -0.5	close		+
18 Sound 15LW1401 4 Ohms	39 -3.77	0.26 +0.01	127 +5.54	7.4 +0.15	100 +1	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 15LW1402	42 -0.77	0.28 +0.03	126 +4.54	7 -0.25	98.4 -0.6	close	Xmax 7 mm < 7.25 mm: lower excursion-limited SPL	+
B&C 15CL76	42 -0.77	0.25 -0.01	140 +18.54	7 -0.25	98 -1	close	4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 7.25 mm: lower excursion-limited SPL	+
18 Sound 15LW1400	42 -0.77	0.245 -0.01	137 +15.54	6.7 -0.55	99.3 +0.3	close	Xmax 6.7 mm < 7.25 mm: lower excursion-limited SPL	+
18 Sound 15LW1401	42 -0.77	0.27 +0.02	131 +9.54	9 +1.75	98 -1	close		+
18 Sound 15LW1401	39 -3.77	0.26 +0.01	127 +5.54	9 +1.75	98 -1	close	4 Ω vs 8 Ω: amp load changes	+
P.Audio P-15N	39.8 -2.97	0.254 =	144.6 +23.14	7.5 +0.25	99.2 +0.2	close		+
RCF MB 15N405	46 +3.23	0.265 +0.01	124 +2.54	6.6 -0.65	100 +1	close	Xmax 6.6 mm < 7.25 mm: lower excursion-limited SPL	+
Faital PRO 15HP1020	40 -2.77	0.27 +0.02	126.6 +5.14	9 +1.75	98 -1	close		+

Compare the closest 3 against the 15NB500 →

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.