Beyma 15M300

15" · 8 Ω · 300 W · 101.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	45 Hz
Qts	0.271
Qes	0.28
Qms	8.1
Vas	220 L
Sd	880 cm²
Xmax	3.5 mm
Re	6.3 Ω
Bl	19.8 T·m
Mms	61.7 g
Pe	300 W
Sensitivity	101.6 dB

Alignment hint

EBP	161 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 37.9 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
B&C 15 PE 40	44 -1	0.27 =	205 -15	3 -0.5	101.5 -0.1	close	Xmax 3 mm < 3.5 mm: lower excursion-limited SPL	+
Electro-Voice EVM-15BII	43 -2	0.293 +0.02	225 +5	3.3 -0.2	101.6 =	close	Xmax 3.3 mm < 3.5 mm: lower excursion-limited SPL	+
Audax PR38LXT250	43.5 -1.5	0.273 =	193 -27	4 +0.5	100.8 -0.8	close		+
Electro-Voice EVM-15B	43 -2	0.297 +0.03	225 +5	3.3 -0.2	101.5 -0.1	close	Xmax 3.3 mm < 3.5 mm: lower excursion-limited SPL	+
JBL M151-8	45 =	0.256 -0.02	198.2 -21.8	4.4 +0.9	102.5 +0.9	close		+
18 Sound 15MB650	40 -5	0.26 -0.01	210 -10	4 +0.5	101.5 -0.1	close		+
Oberton 15L400	43.25 -1.75	0.287 +0.02	229.9 +9.9	3.25 -0.25	102.5 +0.9	close	Xmax 3.25 mm < 3.5 mm: lower excursion-limited SPL	+
Altec ER-15B	43 -2	0.303 +0.03	226.5 +6.5	3.3 -0.2	101.5 -0.1	close	200 W vs 300 W: lower power handling · Xmax 3.3 mm < 3.5 mm: lower excursion-limited SPL	+
P.Audio SN-15B	42.9 -2.1	0.296 +0.02	234.7 +14.7	3.3 -0.2	101.5 -0.1	close	200 W vs 300 W: lower power handling · Xmax 3.3 mm < 3.5 mm: lower excursion-limited SPL	+
Electro-Voice DL15X v1	40 -5	0.262 -0.01	229 +9	4.1 +0.6	100.6 -1	close		+

Compare the closest 3 against the 15M300 →

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.