Fane COLOSSUS 15B

15" · 8 Ω · 300 W · 99.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	30 Hz
Qts	0.156
Qes	0.163
Qms	3.74
Vas	267 L
Sd	820 cm²
Xmax	4 mm
Re	5.76 Ω
Bl	25.7 T·m
Mms	99.4 g
Pe	300 W
Sensitivity	99.9 dB

Alignment hint

EBP	184 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 13.7 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 BI-30	28 -2	0.145 -0.01	283 +16	6.6 +2.6	99.8 -0.1	close		+
RCF L 15L600	29 -1	0.166 +0.01	230 -37	6 +2	97.9 -2	close		+
GOTO SG38WNS	28.1 -1.9	0.154 =	348.6 +81.6	4 =	97.4 -2.5	close	16 Ω vs 8 Ω: amp load changes · 200 W vs 300 W: lower power handling	+
JBL E140	32 +2	0.183 +0.03	297.3 +30.3	3.6 -0.4	100.7 +0.8	usable	200 W vs 300 W: lower power handling · Xmax 3.6 mm < 4 mm: lower excursion-limited SPL	+
Oberton 15MB600	32.4 +2.4	0.17 +0.01	204 -63	5.5 +1.5	99.9 =	usable		+
Beyma 15P80/ND v2015	33 +3	0.178 +0.02	250 -17	7.8 +3.8	100.9 +1	usable		+
Cyrille Audio GM38ND100P V2 a	32.7 +2.7	0.136 -0.02	257.2 -9.8	6.5 +2.5	102.3 +2.4	usable		+
Yamaha JA-3882	38.1 +8.1	0.157 =	253.1 -13.9	3.1 -0.9	99.1 -0.8	usable	16 Ω vs 8 Ω: amp load changes · 150 W vs 300 W: lower power handling · Xmax 3.1 mm < 4 mm: lower excursion-limited SPL	+
JBL K140	30 =	0.211 +0.05	297.3 +30.3	4.1 +0.1	99.2 -0.7	usable	150 W vs 300 W: lower power handling	+
Beyma 15"P80Fe/N	32 +2	0.18 +0.02	305 +38	7.5 +3.5	101 +1.1	usable		+

Compare the closest 3 against the COLOSSUS 15B →

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.