P.Audio R18/100B

18" · 8 Ω · 800 W · 97.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	50.7 Hz
Qts	0.546
Qes	0.57
Qms	13.01
Vas	118.1 L
Sd	1164 cm²
Xmax	5.9 mm
Re	6.6 Ω
Bl	24.2 T·m
Mms	158.5 g
Pe	800 W
Sensitivity	97.1 dB

Alignment hint

EBP	89 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 174.4 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 -4.4	0.587 +0.04	101 -17.1	7.3 +1.4	96.1 -1	close		+
Selenium TORNADO 18SW3A	41 -9.7	0.55 =	126.3 +8.2	7.8 +1.9	93.7 -3.4	usable	4 Ω vs 8 Ω: amp load changes	+
Celestion CF1840JD	44.2 -6.5	0.444 -0.1	113.9 -4.2	8.5 +2.6	96.8 -0.3	usable		+
Selenium VULCANO 3.8 18SWV3.8	47.4 -3.3	0.5 -0.05	100.1 -18	11 +5.1	94.8 -2.3	usable	4 Ω vs 8 Ω: amp load changes	+
JBL 18SWT3000(TORNADO)	41 -9.7	0.55 =	126 +7.9	10.6 +4.7	93.7 -3.4	usable	4 Ω vs 8 Ω: amp load changes	+
Beyma 18P1200Nd vp1	43.8 -6.9	0.376 -0.17	116.9 -1.2	6.1 +0.2	98 +0.9	usable		+
Beyma 18P1200Nd vp459	43.8 -6.9	0.376 -0.17	124.9 +6.8	6.3 +0.4	98.3 +1.2	usable		+
Beyma SM118/N vp PP	36 -14.7	0.492 -0.05	150 +31.9	5.4 -0.5	97.2 +0.1	usable	4 Ω vs 8 Ω: amp load changes · 400 W vs 800 W: lower power handling · Xmax 5.4 mm < 5.9 mm: lower excursion-limited SPL	+
P.Audio SD18-1700EL	42 -8.7	0.59 +0.04	99.72 -18.38	4.8 -1.1	92.6 -4.5	usable	Xmax 4.8 mm < 5.9 mm: lower excursion-limited SPL	+
Beyma SM118/N v2015	42 -8.7	0.581 +0.03	206 +87.9	5.5 -0.4	96.7 -0.4	usable	400 W vs 800 W: lower power handling · Xmax 5.5 mm < 5.9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the R18/100B →

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.