Oberton 15NB451

15" · 8 Ω · 450 W · 99 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	39.57 Hz
Qts	0.257
Qes	0.263
Qms	10.54
Vas	145.21 L
Sd	829.6 cm²
Xmax	7 mm
Re	5.5 Ω
Bl	22.87 T·m
Mms	100.63 g
Pe	450 W
Sensitivity	99 dB

Alignment hint

EBP	150 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 22.1 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
P.Audio P-15N	39.8 +0.23	0.254 =	144.6 -0.61	7.5 +0.5	99.2 +0.2	close		+
Oberton 15B500	38.2 -1.37	0.268 +0.01	145.82 +0.61	7.25 +0.25	99 =	close		+
B&C 15PS76-8	38 -1.57	0.26 =	164 +18.79	7.5 +0.5	99 =	close		+
B&C 15CL76	42 +2.43	0.25 -0.01	140 -5.21	7 =	98 -1	close	4 Ω vs 8 Ω: amp load changes	+
RCF LF 15G401	36 -3.57	0.259 =	150 +4.79	6.9 -0.1	98.3 -0.7	close	Xmax 6.9 mm < 7 mm: lower excursion-limited SPL	+
18 Sound 15NLW9300 v2015	39 -0.57	0.263 +0.01	170 +24.79	7.2 +0.2	98.9 -0.1	close		+
BMS 15S430V2	39.8 +0.23	0.26 =	135 -10.21	7.5 +0.5	96.8 -2.2	close		+
18 Sound 15LW1401 4 Ohms	39 -0.57	0.26 =	127 -18.21	7.4 +0.4	100 +1	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 15ND940	39 -0.57	0.26 =	170 +24.79	9.5 +2.5	99 =	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 15LW1400	42 +2.43	0.245 -0.01	137 -8.21	6.7 -0.3	99.3 +0.3	close	Xmax 6.7 mm < 7 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15NB451 →

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.