P.Audio SD18-1700EL

18" · 8 Ω · 1700 W · 92.6 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	42 Hz
Qts	0.59
Qes	0.623
Qms	11.1
Vas	99.72 L
Sd	1225 cm²
Xmax	4.8 mm
Re	5.2 Ω
Bl	25.9 T·m
Mms	307.7 g
Pe	1700 W
Sensitivity	92.6 dB

Alignment hint

EBP	67 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 228.5 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
Faital PRO 18HP1030-8 vp non rodé	46.3 +4.3	0.587 =	101 +1.28	7.3 +2.5	96.1 +3.5	close	1200 W vs 1700 W: lower power handling	+
Selenium TORNADO 18SW3A	41 -1	0.55 -0.04	126.3 +26.58	7.8 +3	93.7 +1.1	usable	4 Ω vs 8 Ω: amp load changes · 1100 W vs 1700 W: lower power handling	+
JBL 18SWT3000(TORNADO)	41 -1	0.55 -0.04	126 +26.28	10.6 +5.8	93.7 +1.1	usable	4 Ω vs 8 Ω: amp load changes	+
Selenium VULCANO 3.8 18SWV3.8	47.4 +5.4	0.5 -0.09	100.1 +0.38	11 +6.2	94.8 +2.2	usable	4 Ω vs 8 Ω: amp load changes	+
Ciare 18.00SW	36.4 -5.6	0.452 -0.14	92 -7.72	6.8 +2	92.4 -0.2	usable	1000 W vs 1700 W: lower power handling	+
P.Audio R18/100B	50.7 +8.7	0.546 -0.04	118.1 +18.38	5.9 +1.1	97.1 +4.5	usable	800 W vs 1700 W: lower power handling	+
Celestion CF1840JD	44.2 +2.2	0.444 -0.15	113.9 +14.18	8.5 +3.7	96.8 +4.2	usable		+
Beyma SM118/N v2015	42 =	0.581 -0.01	206 +106.28	5.5 +0.7	96.7 +4.1	usable	400 W vs 1700 W: lower power handling	+
P.Audio GST-181200	35 -7	0.54 -0.05	180.2 +80.48	6 +1.2	93.2 +0.6	usable	1200 W vs 1700 W: lower power handling	+
LaVoce SAF184.04	37 -5	0.474 -0.12	143 +43.28	9.3 +4.5	95.2 +2.6	usable		+

Compare the closest 3 against the SD18-1700EL →

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.