Beyma CM-15G

15" · 8 Ω · 300 W · 97.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	34 Hz
Qts	0.375
Qes	0.39
Qms	9.91
Vas	285 L
Sd	880 cm²
Xmax	5 mm
Re	6.1 Ω
Bl	16.7 T·m
Mms	83.5 g
Pe	300 W
Sensitivity	97.7 dB

Alignment hint

EBP	87 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 111.5 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/N 8 ohms	35 +1	0.382 +0.01	267 -18	7.3 +2.3	97.5 -0.2	close		+
Beyma SM115/N v2015	35 +1	0.382 +0.01	267 -18	7.3 +2.3	97.5 -0.2	close		+
Beyma SM115 vp2	35.4 +1.4	0.365 -0.01	295.8 +10.8	7.3 +2.3	98.2 +0.5	close		+
MCM Electronics 55-2963	32 -2	0.386 +0.01	286 +1	6.5 +1.5	95.8 -1.9	close	200 W vs 300 W: lower power handling	+
JBL 2216ND vp boris	30.7 -3.3	0.361 -0.01	312.7 +27.7	5 =	98 +0.3	close	100 W vs 300 W: lower power handling	+
Beyma SM115 vp3	35 +1	0.335 -0.04	282.9 -2.1	7.3 +2.3	97.9 +0.2	close		+
Fostex W 200	32 -2	0.35 -0.03	268.7 -16.3	5.2 +0.2	96.6 -1.1	close	150 W vs 300 W: lower power handling	+
Eminence EMINATOR 2515	28.7 -5.3	0.367 -0.01	274.8 -10.2	6 +1	97.6 -0.1	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 15W200 vp	32 -2	0.35 -0.03	268.7 -16.3	6 +1	96.6 -1.1	close	200 W vs 300 W: lower power handling	+
Faital PRO 15PR400 vp	32.8 -1.2	0.332 -0.04	263.2 -21.8	5.8 +0.8	98 +0.3	close		+

Compare the closest 3 against the CM-15G →

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.