Beyma 6"MI100

6.5" · 8 Ω · 250 W · 94 dB · datasheet ↗

Thiele-Small parameters

Nominal size	6.5"
Impedance	8 Ω
Fs	128 Hz
Qts	0.51
Qes	0.55
Vas	3.1 L
Sd	140 cm²
Xmax	3 mm
Re	6 Ω
Bl	10.8 T·m
Mms	14 g
Pe	250 W
Sensitivity	94 dB

Alignment hint

EBP	233 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 3.4 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
B&C 6MDN44	138 +10	0.47 -0.04	2.8 -0.3	3 =	97 +3	close	16 Ω vs 8 Ω: amp load changes	+
B&C 6MD38	150 +22	0.5 -0.01	2.3 -0.8	3.5 +0.5	95 +1	usable	16 Ω vs 8 Ω: amp load changes · 120 W vs 250 W: lower power handling	+
B&C 6MD38	130 +2	0.44 -0.07	3 -0.1	2 -1	96 +2	usable	120 W vs 250 W: lower power handling · Xmax 2 mm < 3 mm: lower excursion-limited SPL	+
B&C 6MDN44	140 +12	0.4 -0.11	2.7 -0.4	2.5 -0.5	96.5 +2.5	usable	Xmax 2.5 mm < 3 mm: lower excursion-limited SPL	+
Beyma 6G40Nd/N	100 -28	0.38 -0.13	3.7 +0.6	3 =	94 =	usable	170 W vs 250 W: lower power handling	+
Oberton 6NM150	124 -4	0.377 -0.13	4 +0.9	2.25 -0.75	97 +3	usable	150 W vs 250 W: lower power handling · Xmax 2.25 mm < 3 mm: lower excursion-limited SPL	+
B&C 6MBX44	115 -13	0.35 -0.16	4 +0.9	3.5 +0.5	98 +4	usable	16 Ω vs 8 Ω: amp load changes	+
Oberton 6M150	115.1 -12.9	0.422 -0.09	5.35 +2.25	2.25 -0.75	96 +2	usable	150 W vs 250 W: lower power handling · Xmax 2.25 mm < 3 mm: lower excursion-limited SPL	+
B&C 6MBX44	113 -15	0.31 -0.2	4.1 +1	3.5 +0.5	98 +4	risky		+
B&C 6CLA51	96 -32	0.32 -0.19	4.3 +1.2	4.8 +1.8	94.5 +0.5	risky		+

Compare the closest 3 against the 6"MI100 →

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.