Fane Colossus 18SB

18" · 8 Ω · 1000 W · 100 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	36 Hz
Qts	0.346
Qes	0.366
Qms	6.583
Vas	199 L
Sd	1134 cm²
Xmax	8.25 mm
Re	5.2 Ω
Bl	24 T·m
Mms	177.2 g
Pe	1000 W
Sensitivity	100 dB

Alignment hint

EBP	98 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 62.6 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
Beyma 18P1200Nd	37 +1	0.339 -0.01	198 -1	8.4 +0.15	98.3 -1.7	close		+
B&C 18 RBX 100	35 -1	0.343 =	220 +21	8.3 +0.05	98.1 -1.9	close		+
RCF W470	36 =	0.35 =	201 +2	6 -2.25	99.7 -0.3	close	4 Ω vs 8 Ω: amp load changes · Xmax 6 mm < 8.25 mm: lower excursion-limited SPL	+
Fane COLOSSUS 18XT5N	36 =	0.331 -0.01	185 -14	8.4 +0.15	97.4 -2.6	close		+
18 Sound 18LW2420	34 -2	0.36 +0.01	196 -3	10 +1.75	98 -2	close		+
Beyma 18G550	36 =	0.374 +0.03	210 +11	8.1 -0.15	97.8 -2.2	close	Xmax 8.1 mm < 8.25 mm: lower excursion-limited SPL	+
Beyma 18G550 v2015	36 =	0.374 +0.03	210 +11	8.1 -0.15	97.8 -2.2	close	Xmax 8.1 mm < 8.25 mm: lower excursion-limited SPL	+
B&C 18 TBX 100	34 -2	0.352 +0.01	212 +13	9 +0.75	97.5 -2.5	close		+
B&C 18PZW100	37 +1	0.36 +0.01	186 -13	8 -0.25	97.6 -2.4	close	Xmax 8 mm < 8.25 mm: lower excursion-limited SPL	+
Faital PRO 18HP1060	35 -1	0.37 +0.02	200.3 +1.3	12.45 +4.2	98 -2	close		+

Compare the closest 3 against the Colossus 18SB →

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.