Monacor SP-18/600FH

18" · 8 Ω · 600 W · 99 dB

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	30 Hz
Qts	0.327
Qes	0.34
Qms	8.68
Vas	404 L
Sd	1166 cm²
Xmax	9.3 mm
Re	5.1 Ω
Bl	19.4 T·m
Mms	132.8 g
Pe	600 W
Sensitivity	99 dB

Alignment hint

EBP	88 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 109.9 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 18FH500	30 =	0.35 +0.02	417.9 +13.9	9.25 -0.05	99 =	close	Xmax 9.25 mm < 9.3 mm: lower excursion-limited SPL	+
Faital PRO 18FH500 v2016	30 =	0.35 +0.02	374.8 -29.2	9.2 -0.1	98.4 -0.6	close	Xmax 9.2 mm < 9.3 mm: lower excursion-limited SPL	+
Faital PRO 18FH510	30 =	0.29 -0.04	411.9 +7.9	9.25 -0.05	98 -1	close	Xmax 9.25 mm < 9.3 mm: lower excursion-limited SPL	+
Eminence KAPPA PRO 18 LF-8	32 +2	0.329 =	391 -13	8 -1.3	99.5 +0.5	close	Xmax 8 mm < 9.3 mm: lower excursion-limited SPL	+
Eminence Kappa Pro 18LF2	32 +2	0.33 =	391.61 -12.39	8 -1.3	98 -1	close	Xmax 8 mm < 9.3 mm: lower excursion-limited SPL	+
PD PD 18BR40	30 =	0.32 -0.01	309 -95	9.3 =	98 -1	close		+
Precision Devices PD 18BR40	30 =	0.32 -0.01	309 -95	9.3 =	98 -1	close		+
RCF L 18P200N vp tlhp	28 -2	0.306 -0.02	380 -24	9.8 +0.5	97.2 -1.8	close		+
DAS Audio S1846 vp2	29.6 -0.4	0.298 -0.03	384 -20	8 -1.3	97.7 -1.3	close	Xmax 8 mm < 9.3 mm: lower excursion-limited SPL	+
RCF L 18P200N	28 -2	0.306 -0.02	363 -41	9.8 +0.5	97 -2	close		+

Compare the closest 3 against the SP-18/600FH →

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.