Beyma 12MW/ND

12" · 8 Ω · 350 W · 96.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	43 Hz
Qts	0.328
Qes	0.34
Qms	9.15
Vas	100 L
Sd	550 cm²
Xmax	6.5 mm
Re	6 Ω
Bl	16.6 T·m
Mms	58.1 g
Pe	350 W
Sensitivity	96.9 dB

Alignment hint

EBP	126 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 27.4 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
DAS Audio P-12	42 -1	0.329 =	105 +5	6 -0.5	96.5 -0.4	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Fane SOVEREIGN PRO 12-500	43 =	0.314 -0.01	107 +7	6 -0.5	97.4 +0.5	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Beyma SM212-N2	43 =	0.372 +0.04	103 +3	6.9 +0.4	96.7 -0.2	close		+
Beyma SM212 v2018	43 =	0.381 +0.05	103 +3	7 +0.5	96.6 -0.3	close		+
PHL Audio 4510	42 -1	0.307 -0.02	108 +8	6 -0.5	97.3 +0.4	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Fane SOVEREIGN PRO 12-300S	40 -3	0.321 -0.01	101.3 +1.3	5.3 -1.2	96.5 -0.4	close	Xmax 5.3 mm < 6.5 mm: lower excursion-limited SPL	+
Beyma 12WRS400	42 -1	0.29 -0.04	91 -9	6.3 -0.2	97 +0.1	close	Xmax 6.3 mm < 6.5 mm: lower excursion-limited SPL	+
Beyma SM112/W	42 -1	0.335 +0.01	90 -10	5.5 -1	96.1 -0.8	close	250 W vs 350 W: lower power handling · Xmax 5.5 mm < 6.5 mm: lower excursion-limited SPL	+
PHL Audio 4590	43 =	0.36 +0.03	90 -10	6 -0.5	96.2 -0.7	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
PHL Audio 4530P	42 -1	0.36 +0.03	93 -7	6 -0.5	96.1 -0.8	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12MW/ND →

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.