Beyma SM115 vp2

15" · 8 Ω · 400 W · 98.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	35.4 Hz
Qts	0.365
Qes	0.4
Qms	4.17
Vas	295.8 L
Sd	881.4 cm²
Xmax	7.3 mm
Re	6.2 Ω
Bl	16 T·m
Mms	74.5 g
Pe	400 W
Sensitivity	98.2 dB

Alignment hint

EBP	88 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 107.4 L

EBP 50-100: works in either a sealed or ported 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
Beyma SM115 vp1	35.9 +0.5	0.355 -0.01	314.2 +18.4	7.3 =	98.5 +0.3	close		+
Beyma SM115 vp3	35 -0.4	0.335 -0.03	282.9 -12.9	7.3 =	97.9 -0.3	close		+
Beyma SM115 vp4	35.5 +0.1	0.339 -0.03	310.6 +14.8	7.3 =	99 +0.8	close		+
Beyma SM115/N 8 ohms	35 -0.4	0.382 +0.02	267 -28.8	7.3 =	97.5 -0.7	close		+
Beyma SM115/N v2015	35 -0.4	0.382 +0.02	267 -28.8	7.3 =	97.5 -0.7	close		+
Beyma SM115 v2	35 -0.4	0.315 -0.05	276 -19.8	7.3 =	98.4 +0.2	close		+
Focal 38WX4	28.9 -6.5	0.364 =	310.4 +14.6	7.7 +0.4	99.2 +1	close	4 Ω vs 8 Ω: amp load changes · 225 W vs 400 W: lower power handling	+
AE Speakers TD15M	34.7 -0.7	0.327 -0.04	312 +16.2	6 -1.3	98.5 +0.3	close	250 W vs 400 W: lower power handling · Xmax 6 mm < 7.3 mm: lower excursion-limited SPL	+
AE Speakers TD15M 8 Ohms	34.7 -0.7	0.327 -0.04	312 +16.2	6 -1.3	98.5 +0.3	close	250 W vs 400 W: lower power handling · Xmax 6 mm < 7.3 mm: lower excursion-limited SPL	+
Fane SOVEREIGN 15-600LF	37 +1.6	0.388 +0.02	236 -59.8	6.9 -0.4	98.3 +0.1	close	Xmax 6.9 mm < 7.3 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SM115 vp2 →

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.