Celestion FTR18-4080F

18" · 8 Ω · 800 W · 98.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	28 Hz
Qts	0.265
Qes	0.28
Qms	5.12
Vas	383.3 L
Sd	1130 cm²
Xmax	6 mm
Re	5.27 Ω
Bl	22.4 T·m
Mms	150.9 g
Pe	800 W
Sensitivity	98.6 dB

Alignment hint

EBP	100 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 62.6 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
Rockford Fosgate SPP-184	27 -1	0.266 =	353 -30.3	6 =	99.2 +0.6	close	4 Ω vs 8 Ω: amp load changes · 350 W vs 800 W: lower power handling	+
RCF LF 18X400	28 =	0.255 -0.01	360 -23.3	9 +3	98.6 =	close		+
RCF LF 18G400	28 =	0.273 +0.01	360 -23.3	9 +3	98.3 -0.3	close		+
Electro-Voice EVX-180A	29 +1	0.27 +0.01	416 +32.7	6.4 +0.4	99.5 +0.9	close	600 W vs 800 W: lower power handling	+
Electro-Voice EVX-180B	29 +1	0.27 +0.01	416 +32.7	6.4 +0.4	99.5 +0.9	close	600 W vs 800 W: lower power handling	+
RCF LF18G400	28 =	0.27 +0.01	360 -23.3	9 +3	97.5 -1.1	close		+
Celestion FTR18-4080FD	26 -2	0.27 +0.01	395.56 +12.26	6 =	97 -1.6	close		+
PD PD 182	28 =	0.238 -0.03	391 +7.7	8.2 +2.2	98.7 +0.1	close	600 W vs 800 W: lower power handling	+
Precision Devices PD 182	28 =	0.238 -0.03	391 +7.7	8.2 +2.2	98.7 +0.1	close	600 W vs 800 W: lower power handling	+
Faital PRO 18FH510	30 +2	0.26 -0.01	391.4 +8.1	9.45 +3.45	98 -0.6	close	4 Ω vs 8 Ω: amp load changes · 600 W vs 800 W: lower power handling	+

Compare the closest 3 against the FTR18-4080F →

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.