EMS B15

15" · 16 Ω · 100 W · 98.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	16 Ω
Fs	20 Hz
Qts	0.085
Qes	0.086
Qms	6.979
Vas	729 L
Sd	855 cm²
Xmax	3.9 mm
Re	11.42 Ω
Bl	38.5 T·m
Mms	89 g
Pe	100 W
Sensitivity	98.7 dB

Alignment hint

EBP	233 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 10.7 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
Cyrille Audio S38ND100P	18.3 -1.7	0.098 +0.01	540 -189	8 +4.1	100.4 +1.7	usable	4 Ω vs 16 Ω: amp load changes	+
Audax WOOFEX 34	26.6 +6.6	0.104 +0.02	653.8 -75.2	4 +0.1	103.7 +5	usable	8 Ω vs 16 Ω: amp load changes	+
EMS B15EX-12.5V	22 +2	0.146 +0.06	791 +62	5.4 +1.5	100.4 +1.7	usable	8 Ω vs 16 Ω: amp load changes	+
Fertin Acoustics 38EX-12.5 V	20 =	0.125 +0.04	935 +206	3 -0.9	101.6 +2.9	usable	8 Ω vs 16 Ω: amp load changes · Xmax 3 mm < 3.9 mm: lower excursion-limited SPL	+
Audax PR38SM250	19.5 -0.5	0.177 +0.09	660 -69	4 +0.1	97.7 -1	usable	8 Ω vs 16 Ω: amp load changes	+
Audax HD38S100	15 -5	0.126 +0.04	941.7 +212.7	3.5 -0.4	97.5 -1.2	usable	8 Ω vs 16 Ω: amp load changes · Xmax 3.5 mm < 3.9 mm: lower excursion-limited SPL	+
Beyma 15B100R	20 =	0.14 +0.06	590 -139	3 -0.9	94.9 -3.8	usable	8 Ω vs 16 Ω: amp load changes · Xmax 3 mm < 3.9 mm: lower excursion-limited SPL	+
Electro-Voice DL 15W	21 +1	0.164 +0.08	575 -154	5.6 +1.7	98.2 -0.5	usable	8 Ω vs 16 Ω: amp load changes	+
Fluxmag 1504-DF	21.6 +1.6	0.132 +0.05	393.2 -335.8	4 +0.1	98.9 +0.2	risky	8 Ω vs 16 Ω: amp load changes	+
JBL 2215H	20 =	0.212 +0.13	736.2 +7.2	4.1 +0.2	97.7 -1	risky	8 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the B15 →

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.