Fane Colossus 12MB

12" · 8 Ω · 500 W · 98 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	55 Hz
Qts	0.286
Qes	0.333
Qms	2.05
Vas	56 L
Sd	530 cm²
Xmax	5.5 mm
Re	5.5 Ω
Bl	18.3 T·m
Mms	59 g
Pe	500 W
Sensitivity	98 dB

Alignment hint

EBP	165 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 11 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
RCF LF 12G300	54 -1	0.285 =	55 -1	4.6 -0.9	98.1 +0.1	close	Xmax 4.6 mm < 5.5 mm: lower excursion-limited SPL	+
18 Sound 12W750	55 =	0.27 -0.02	58 +2	7 +1.5	97 -1	close	4 Ω vs 8 Ω: amp load changes	+
B&C 12FW64	55 =	0.29 =	64 +8	5 -0.5	98 =	close	250 W vs 500 W: lower power handling · Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
B&C 12 NDL 88	51 -4	0.274 -0.01	52 -4	5.7 +0.2	97.8 -0.2	close		+
B&C 12FL76	50 -5	0.3 +0.01	57 +1	6 +0.5	97.5 -0.5	close		+
BMS 12C382	52 -3	0.285 =	57 +1	4.5 -1	97.6 -0.4	close	Xmax 4.5 mm < 5.5 mm: lower excursion-limited SPL	+
Beyma 12MCB700	51 -4	0.27 -0.02	59.5 +3.5	7 +1.5	98 =	close		+
Master Audio HPLSN12-500	52 -3	0.283 =	65 +9	5 -0.5	97.7 -0.3	close	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
B&C 12NDL88	51 -4	0.27 -0.02	52 -4	8 +2.5	98 =	close		+
B&C 12CLA76	52 -3	0.25 -0.04	56 =	5.3 -0.2	98.5 +0.5	close	350 W vs 500 W: lower power handling · Xmax 5.3 mm < 5.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the Colossus 12MB →

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.