Celestion TF1830

18" · 4 Ω · 500 W · 100.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	4 Ω
Fs	35.7 Hz
Qts	0.393
Qes	0.434
Qms	4.213
Vas	202.4 L
Sd	1193.8 cm²
Xmax	4.5 mm
Re	2.58 Ω
Bl	16.2 T·m
Mms	196.2 g
Pe	500 W
Sensitivity	100.2 dB

Alignment hint

EBP	82 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 90.5 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
RCF W470	36 +0.3	0.35 -0.04	201 -1.4	6 +1.5	99.7 -0.5	close		+
RCF LF 18P400	39.5 +3.8	0.391 =	201 -1.4	8 +3.5	99 -1.2	close	8 Ω vs 4 Ω: amp load changes	+
Fane Colossus 18SB	36 +0.3	0.346 -0.05	199 -3.4	8.25 +3.75	100 -0.2	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 18G550	36 +0.3	0.374 -0.02	210 +7.6	8.1 +3.6	97.8 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 18G550 v2015	36 +0.3	0.374 -0.02	210 +7.6	8.1 +3.6	97.8 -2.4	close	8 Ω vs 4 Ω: amp load changes	+
Sica 18 S 4 PL	36.2 +0.5	0.39 =	189 -13.4	8 +3.5	97.3 -2.9	close	8 Ω vs 4 Ω: amp load changes	+
HiVi PA18	41 +5.3	0.388 -0.01	233.1 +30.7	4.9 +0.4	99.6 -0.6	close	8 Ω vs 4 Ω: amp load changes	+
RCF L 18/851KN	39 +3.3	0.357 -0.04	200 -2.4	5 +0.5	98.4 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
B&C 18 TBX 100 (prodance)	36.6 +0.9	0.406 +0.01	198 -4.4	9 +4.5	97.4 -2.8	close	8 Ω vs 4 Ω: amp load changes	+
Beyma 18LEX1600/ND-8	35 -0.7	0.39 =	205 +2.6	10.4 +5.9	96.8 -3.4	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the TF1830 →

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.