Selenium WPU1805-X

18" · 8 Ω · 600 W · 95.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	35 Hz
Qts	0.706
Qes	0.73
Qms	21.09
Vas	293 L
Sd	1194 cm²
Xmax	6.3 mm
Re	6.3 Ω
Bl	16.4 T·m
Mms	141 g
Pe	600 W
Sensitivity	95.4 dB

Alignment hint

EBP	48 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 93377.1 L

EBP < 50: favours a sealed (closed) 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
Selenium WPU 1805-X	35 =	0.7 -0.01	293 =	6.3 =	94.2 -1.2	close		+
Peerless FSL-1830R09-08	32.7 -2.3	0.587 -0.12	283.1 -9.9	9.6 +3.3	94.6 -0.8	usable		+
Radian 2218	33.8 -1.2	0.525 -0.18	286 -7	9 +2.7	95.5 +0.1	usable		+
Radian 2218-8	33.8 -1.2	0.518 -0.19	282.9 -10.1	9 +2.7	95.5 +0.1	usable		+
Wharfedale D592	35 =	0.547 -0.16	251 -42	6 -0.3	94.6 -0.8	usable	16 Ω vs 8 Ω: amp load changes · 400 W vs 600 W: lower power handling · Xmax 6 mm < 6.3 mm: lower excursion-limited SPL	+
Peavey 1801-8 LT BW	40.2 +5.2	0.61 -0.1	284.9 -8.1	5 -1.3	96.5 +1.1	usable	350 W vs 600 W: lower power handling · Xmax 5 mm < 6.3 mm: lower excursion-limited SPL	+
Fane 18-500	33 -2	0.563 -0.14	346 +53	6.3 =	96.9 +1.5	usable		+
Fane SOVEREIGN 18-500	33 -2	0.563 -0.14	346 +53	6.3 =	96.9 +1.5	usable		+
Eminence KILOMAX 18	33.8 -1.2	0.527 -0.18	281.4 -11.6	10 +3.7	96.4 +1	usable		+
Peavey PRO RIDER 18 1808-8 AL CP	36 +1	0.55 -0.16	296.475 +3.48	4.6 -1.7	95.6 +0.2	usable	Xmax 4.6 mm < 6.3 mm: lower excursion-limited SPL	+

Compare the closest 3 against the WPU1805-X →

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.