Selenium 18WS600

18" · 8 Ω · 600 W · 96.7 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	33 Hz
Qts	0.43
Qes	0.44
Qms	18.8
Vas	375 L
Sd	1185 cm²
Xmax	3.8 mm
Re	6.3 Ω
Bl	19.2 T·m
Mms	123.7 g
Pe	600 W
Sensitivity	96.7 dB

Alignment hint

EBP	75 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 220 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
Mercuriale PTR 460 M0	33 =	0.419 -0.01	380.9 +5.9	4 +0.2	98 +1.3	close	200 W vs 600 W: lower power handling	+
Selenium WPU1805	34 +1	0.447 +0.02	316 -59	4.3 +0.5	97.1 +0.4	close	450 W vs 600 W: lower power handling	+
Sica 18 F 3 CP	31.6 -1.4	0.44 +0.01	321 -54	6.5 +2.7	96.9 +0.2	close		+
Beyma SM118	30 -3	0.421 -0.01	430 +55	5.5 +1.7	97.2 +0.5	close	400 W vs 600 W: lower power handling	+
Beyma 18LX60 vp1	31.3 -1.7	0.472 +0.04	385 +10	9 +5.2	96.8 +0.1	close		+
Beyma 18LX60 (prodance)	31.3 -1.7	0.472 +0.04	385.3 +10.3	9 +5.2	96.8 +0.1	close		+
McCauley 6152-8	30 -3	0.434 =	354 -21	12 +8.2	97.1 +0.4	close		+
Monacor SPA-45PA	29 -4	0.457 +0.03	440 +65	4 +0.2	96.5 -0.2	close	300 W vs 600 W: lower power handling	+
Beyma 18G40	31 -2	0.407 -0.02	323 -52	7 +3.2	96.9 +0.2	close		+
SB Audience BIANCO-18SW450 v2024	28 -5	0.445 +0.02	370.4 -4.6	9.1 +5.3	96.4 -0.3	close	450 W vs 600 W: lower power handling	+

Compare the closest 3 against the 18WS600 →

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.