Oberton 15L400

15" · 8 Ω · 400 W · 102.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	43.25 Hz
Qts	0.287
Qes	0.294
Qms	11.56
Vas	229.9 L
Sd	829.6 cm²
Xmax	3.25 mm
Re	5.45 Ω
Bl	16.87 T·m
Mms	56.6 g
Pe	400 W
Sensitivity	102.5 dB

Alignment hint

EBP	147 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 45.3 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
Electro-Voice EVM-15BII	43 -0.25	0.293 +0.01	225 -4.9	3.3 +0.05	101.6 -0.9	close		+
P.Audio SN-15B	42.9 -0.35	0.296 +0.01	234.7 +4.8	3.3 +0.05	101.5 -1	close	200 W vs 400 W: lower power handling	+
Electro-Voice EVM-15B	43 -0.25	0.297 +0.01	225 -4.9	3.3 +0.05	101.5 -1	close		+
Altec ER-15B	43 -0.25	0.303 +0.02	226.5 -3.4	3.3 +0.05	101.5 -1	close	200 W vs 400 W: lower power handling	+
Beyma 15M300	45 +1.75	0.271 -0.02	220 -9.9	3.5 +0.25	101.6 -0.9	close	300 W vs 400 W: lower power handling	+
18 Sound 15MB700	42 -1.25	0.29 =	202 -27.9	5.5 +2.25	103 +0.5	close		+
B&C 15 PE 40	44 +0.75	0.27 -0.02	205 -24.9	3 -0.25	101.5 -1	close	250 W vs 400 W: lower power handling · Xmax 3 mm < 3.25 mm: lower excursion-limited SPL	+
P.Audio E15-300S v2015	39 -4.25	0.287 =	228.8 -1.1	4.3 +1.05	99.5 -3	close	300 W vs 400 W: lower power handling	+
P.Audio E 300S	39 -4.25	0.287 =	228 -1.9	4.3 +1.05	99.5 -3	close	300 W vs 400 W: lower power handling	+
Altec ER-15L	43 -0.25	0.238 -0.05	246.4 +16.5	3.3 +0.05	102.8 +0.3	close	200 W vs 400 W: lower power handling	+

Compare the closest 3 against the 15L400 →

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.