Celestion G18-200

18" · 8 Ω · 200 W · 97.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	29.6 Hz
Qts	0.364
Qes	0.38
Qms	8.9
Vas	518.5 L
Sd	1134.1 cm²
Xmax	5 mm
Re	7.21 Ω
Bl	18.8 T·m
Mms	100.5 g
Pe	200 W
Sensitivity	97.9 dB

Alignment hint

EBP	78 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 186.9 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
Fane 18-500 TLHP	29 -0.6	0.403 +0.04	521 +2.5	6.3 +1.3	98.2 +0.3	close		+
Beyma 18LX60	27 -2.6	0.368 =	500 -18.5	9 +4	97.7 -0.2	close		+
Eminence KAPPA 18	28 -1.6	0.32 -0.04	493.2 -25.3	4.8 -0.2	98.9 +1	close	Xmax 4.8 mm < 5 mm: lower excursion-limited SPL	+
Electro-Voice DL18X	30 +0.4	0.339 -0.02	566.3 +47.8	4.1 -0.9	99.4 +1.5	close	Xmax 4.1 mm < 5 mm: lower excursion-limited SPL	+
Eminence DELTA PRO 18 A	26 -3.6	0.32 -0.04	493.2 -25.3	6.7 +1.7	98 +0.1	close		+
Faital PRO 18FH500	30 +0.4	0.35 -0.01	417.9 -100.6	9.25 +4.25	99 +1.1	close		+
Eminence KAPPA 18 A	28 -1.6	0.408 +0.04	475.5 -43	4.8 -0.2	95.9 -2	close	Xmax 4.8 mm < 5 mm: lower excursion-limited SPL	+
Beyma SM118	30 +0.4	0.421 +0.06	430 -88.5	5.5 +0.5	97.2 -0.7	close		+
Dayton Audio PA460-8 v2015	28.3 -1.3	0.33 -0.03	402 -116.5	6 +1	97.8 -0.1	close		+
Dibeisi PS1805-8	27.1 -2.5	0.4 +0.04	473.8 -44.7	7 +2	96.1 -1.8	close		+

Compare the closest 3 against the G18-200 →

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.