Carvin PS18-8

18" · 8 Ω · 500 W · 97.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	35 Hz
Qts	0.48
Qes	0.59
Qms	2.5
Vas	531.785 L
Sd	1521 cm²
Xmax	6 mm
Re	5.1 Ω
Bl	15.6 T·m
Mms	128 g
Pe	500 W
Sensitivity	97.7 dB

Alignment hint

EBP	59 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 454.5 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
Fane 18-500 TLHP	29 -6	0.403 -0.08	521 -10.78	6.3 +0.3	98.2 +0.5	usable		+
Beyma 18LX60 (prodance)	31.3 -3.7	0.472 -0.01	385.3 -146.48	9 +3	96.8 -0.9	usable		+
Beyma 18LX60 vp1	31.3 -3.7	0.472 -0.01	385 -146.78	9 +3	96.8 -0.9	usable		+
Faital PRO 18FH500	30 -5	0.53 +0.05	450.1 -81.68	9.45 +3.45	97 -0.7	usable	16 Ω vs 8 Ω: amp load changes	+
Beyma SM118	30 -5	0.421 -0.06	430 -101.78	5.5 -0.5	97.2 -0.5	usable	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
DAS Audio S1846 vp1	36.3 +1.3	0.403 -0.08	389.4 -142.38	8 +2	98.7 +1	usable		+
Mach 5 Audio MAC MAH CWA46	27 -8	0.448 -0.03	470.3 -61.48	10 +4	96.2 -1.5	usable		+
Beyma 18WRS600	30 -5	0.47 -0.01	354 -177.78	8.5 +2.5	97 -0.7	usable		+
Beyma SM118/N	36 +1	0.492 +0.01	300 -231.78	5.5 -0.5	97.2 -0.5	usable	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
Eminence KILOMAX PRO 18 A v2016	32 -3	0.467 -0.01	331.5 -200.28	10 +4	97.4 -0.3	usable		+

Compare the closest 3 against the PS18-8 →

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.