Selenium 18SWS1100

18" · 8 Ω · 1100 W · 97.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	34 Hz
Qts	0.447
Qes	0.46
Qms	15.43
Vas	316 L
Sd	1190 cm²
Xmax	9.3 mm
Re	5.6 Ω
Bl	18.9 T·m
Mms	137.7 g
Pe	1100 W
Sensitivity	97.8 dB

Alignment hint

EBP	74 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 210.3 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
Eminence KILOMAX PRO 18 A v2016	32 -2	0.467 +0.02	331.5 +15.5	10 +0.7	97.4 -0.4	close		+
SB Audience ROSSO-18SW650	31 -3	0.418 -0.03	304.3 -11.7	9 -0.3	97.2 -0.6	close	650 W vs 1100 W: lower power handling · Xmax 9 mm < 9.3 mm: lower excursion-limited SPL	+
Beyma 18G550/S-8	33 -1	0.396 -0.05	290 -26	9.3 =	97.5 -0.3	close		+
SB Audience 18SW800	33 -1	0.456 +0.01	258.1 -57.9	9.3 =	96.8 -1	close	800 W vs 1100 W: lower power handling	+
Eminence KILOMAX PRO-18A	32 -2	0.47 +0.02	331.5 +15.5	10 +0.7	95.8 -2	close		+
Beyma 18G550 v2018	33 -1	0.396 -0.05	290 -26	9 -0.3	97.5 -0.3	close	Xmax 9 mm < 9.3 mm: lower excursion-limited SPL	+
Beyma 18LEX1000/Nd	34 =	0.391 -0.06	260 -56	9.4 +0.1	97.8 =	close		+
McCauley 6152-8	30 -4	0.434 -0.01	354 +38	12 +2.7	97.1 -0.7	close		+
JBL 2241H	35 +1	0.4 -0.05	310 -6	7.6 -1.7	98.9 +1.1	close	600 W vs 1100 W: lower power handling · Xmax 7.6 mm < 9.3 mm: lower excursion-limited SPL	+
Dayton Audio APOLLO 18F	32 -2	0.401 -0.05	287.7 -28.3	10.6 +1.3	96.4 -1.4	close		+

Compare the closest 3 against the 18SWS1100 →

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.