Beyma 12MI100

12" · 8 Ω · 450 W · 100.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	58 Hz
Qts	0.221
Qes	0.23
Qms	5.54
Vas	64 L
Sd	530 cm²
Xmax	4.2 mm
Re	6.3 Ω
Bl	21.5 T·m
Mms	46.3 g
Pe	450 W
Sensitivity	100.4 dB

Alignment hint

EBP	252 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 6.9 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
JBL 2020 H	60 +2	0.228 +0.01	65 +1	4 -0.2	101.9 +1.5	close	Xmax 4 mm < 4.2 mm: lower excursion-limited SPL	+
JBL 2020H	60 +2	0.228 +0.01	65 +1	4 -0.2	101.9 +1.5	close	Xmax 4 mm < 4.2 mm: lower excursion-limited SPL	+
RCF MB 12N351	55 -3	0.201 -0.02	61 -3	4.7 +0.5	100.4 =	close		+
Beyma 12"MI100	58 =	0.22 =	64 =	3 -1.2	100 -0.4	close	Xmax 3 mm < 4.2 mm: lower excursion-limited SPL	+
18 Sound 12ND830	58 =	0.24 +0.02	63 -1	6.5 +2.3	99 -1.4	close	4 Ω vs 8 Ω: amp load changes	+
Electro-Voice DL12X	56 -2	0.233 +0.01	77 +13	4.1 -0.1	100.7 +0.3	close	300 W vs 450 W: lower power handling · Xmax 4.1 mm < 4.2 mm: lower excursion-limited SPL	+
RCF MB 12N301	54 -4	0.24 +0.02	71 +7	4.9 +0.7	99.7 -0.7	close		+
Precision Devices PD121	59 +1	0.201 -0.02	54 -10	5 +0.8	100 -0.4	close	16 Ω vs 8 Ω: amp load changes · 300 W vs 450 W: lower power handling	+
B&C 12 CXN 88	50 -8	0.224 =	59 -5	4 -0.2	99.1 -1.3	close	Xmax 4 mm < 4.2 mm: lower excursion-limited SPL	+
B&C 12MH32	53 -5	0.19 -0.03	63 -1	5 +0.8	101 +0.6	close		+

Compare the closest 3 against the 12MI100 →

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.