Vifa M30W0-49-08

12" · 8 Ω · 100 W · 95.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	21 Hz
Qts	0.225
Qes	0.25
Qms	2.3
Vas	400 L
Sd	513 cm²
Xmax	6 mm
Re	5.7 Ω
Bl	12.6 T·m
Mms	53 g
Pe	100 W
Sensitivity	95.2 dB

Alignment hint

EBP	84 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 45.1 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
AER STUDIO BASS	21 =	0.237 +0.01	360 -40	5.2 -0.8	94.3 -0.9	close	Xmax 5.2 mm < 6 mm: lower excursion-limited SPL	+
Siare 31TE V2	23 +2	0.265 +0.04	387 -13	5 -1	95.9 +0.7	usable	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Monacor SPH-315	22 +1	0.235 +0.01	330 -70	4.5 -1.5	94.5 -0.7	usable	Xmax 4.5 mm < 6 mm: lower excursion-limited SPL	+
SEAS 33F-WKA	22 +1	0.209 -0.02	310 -90	5 -1	95 -0.2	usable	70 W vs 100 W: lower power handling · Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Ciare CW322	22 +1	0.251 +0.03	355 -45	5 -1	97.4 +2.2	usable	4 Ω vs 8 Ω: amp load changes · Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Klipsch K31	19 -2	0.185 -0.04	386 -14	5 -1	94.8 -0.4	usable	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Siare 31TE-2B	20.6 -0.4	0.264 +0.04	502 +102	5 -1	95.7 +0.5	usable	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Visaton W300S4	23 +2	0.253 +0.03	300 -100	7 +1	96.4 +1.2	usable	4 Ω vs 8 Ω: amp load changes	+
Audiotechnology 12D772510KAP	19 -2	0.257 +0.03	340 -60	8.6 +2.6	93.1 -2.1	usable		+
JBL 122A	17 -4	0.232 +0.01	339.8 -60.2	6.9 +0.9	91.9 -3.3	usable		+

Compare the closest 3 against the M30W0-49-08 →

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.