Oberton 15MB500

15" · 8 Ω · 500 W · 100 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	41.5 Hz
Qts	0.339
Qes	0.349
Qms	12.85
Vas	161.54 L
Sd	829.6 cm²
Xmax	7.75 mm
Re	5.25 Ω
Bl	18.54 T·m
Mms	87.5 g
Pe	500 W
Sensitivity	100 dB

Alignment hint

EBP	119 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 48.2 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
Faital PRO 15FH520-4	38 -3.5	0.337 =	156.6 -4.94	7.8 +0.05	100.6 +0.6	close	4 Ω vs 8 Ω: amp load changes	+
PD PD 15BR40	38.7 -2.8	0.34 =	158.3 -3.24	7.9 +0.15	98.1 -1.9	close		+
Precision Devices PD 15BR40	38.7 -2.8	0.34 =	158.3 -3.24	7.9 +0.15	98.1 -1.9	close		+
18 Sound 15ND940	41 -0.5	0.36 +0.02	166 +4.46	9.5 +1.75	98.5 -1.5	close	16 Ω vs 8 Ω: amp load changes	+
Faital PRO 15FH520-4 v2021	38 -3.5	0.337 =	146.2 -15.34	7.4 -0.35	100.3 +0.3	close	4 Ω vs 8 Ω: amp load changes · Xmax 7.4 mm < 7.75 mm: lower excursion-limited SPL	+
18 Sound 15ND840	43 +1.5	0.37 +0.03	163 +1.46	9.5 +1.75	99 -1	close		+
Beyma 15MC700	41 -0.5	0.352 +0.01	153 -8.54	7.4 -0.35	97.7 -2.3	close	Xmax 7.4 mm < 7.75 mm: lower excursion-limited SPL	+
18 Sound 15ND830	42 +0.5	0.34 =	157 -4.54	6.5 -1.25	98 -2	close	4 Ω vs 8 Ω: amp load changes · Xmax 6.5 mm < 7.75 mm: lower excursion-limited SPL	+
Beyma 15MCB700	44 +2.5	0.34 =	148 -13.54	7 -0.75	99 -1	close	Xmax 7 mm < 7.75 mm: lower excursion-limited SPL	+
P.Audio S15-100LF	38 -3.5	0.35 +0.01	169.1 +7.56	7.8 +0.05	98 -2	close		+

Compare the closest 3 against the 15MB500 →

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.