Eminence KAPPA PRO 18 LF-8

18" · 8 Ω · 800 W · 99.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	32 Hz
Qts	0.329
Qes	0.34
Qms	10.66
Vas	391 L
Sd	1159 cm²
Xmax	8 mm
Re	5.39 Ω
Bl	19.5 T·m
Mms	119.1 g
Pe	800 W
Sensitivity	99.5 dB

Alignment hint

EBP	94 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 108 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 Kappa Pro 18LF2	32 =	0.33 =	391.61 +0.61	8 =	98 -1.5	close		+
Monacor SP-18/600FH	30 -2	0.327 =	404 +13	9.3 +1.3	99 -0.5	close	600 W vs 800 W: lower power handling	+
18 Sound 18W1300	35 +3	0.33 =	336 -55	8.5 +0.5	99.5 =	close		+
Faital PRO 18FH500	30 -2	0.35 +0.02	417.9 +26.9	9.25 +1.25	99 -0.5	close	600 W vs 800 W: lower power handling	+
Faital PRO 18FH500 v2016	30 -2	0.35 +0.02	374.8 -16.2	9.2 +1.2	98.4 -1.1	close	500 W vs 800 W: lower power handling	+
DAS Audio S1846 vp2	29.6 -2.4	0.298 -0.03	384 -7	8 =	97.7 -1.8	close	550 W vs 800 W: lower power handling	+
JBL 2268H	33 +1	0.354 +0.02	328 -63	8 =	98.6 -0.9	close		+
JBL 2043G	31 -1	0.343 +0.01	384 -7	6.6 -1.4	101.7 +2.2	close	4 Ω vs 8 Ω: amp load changes · 350 W vs 800 W: lower power handling · Xmax 6.6 mm < 8 mm: lower excursion-limited SPL	+
PHL Audio 7080	33 +1	0.347 +0.02	315 -76	8 =	98.3 -1.2	close		+
B&C 18 RXB	33 +1	0.282 -0.05	370 -21	10 +2	100.3 +0.8	close		+

Compare the closest 3 against the KAPPA PRO 18 LF-8 →

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.