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Celestion FTR18-4080HD

18" · 8 Ω · 1000 W · 97.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance8 Ω
Fs26 Hz
Qts0.272
Qes0.29
Qms4.33
Vas395.6 L
Sd1130 cm²
Xmax8 mm
Re5.39 Ω
Bl22.7 T·m
Mms169.6 g
Pe1000 W
Sensitivity97.5 dB

Alignment hint

EBP90 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 68.7 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
RCF LF18G40028 +20.27 =360 -35.69 +197.5 =close+
Celestion FTR18-4080FD26 =0.27 =395.56 -0.046 -297 -0.5closeXmax 6 mm < 8 mm: lower excursion-limited SPL+
RCF LF 18G40028 +20.273 =360 -35.69 +198.3 +0.8close+
RCF LF18X40028 +20.27 =340 -55.69 +197.5 =close+
Faital PRO 18FH51030 +40.26 -0.01391.4 -4.29.45 +1.4598 +0.5close4 Ω vs 8 Ω: amp load changes · 600 W vs 1000 W: lower power handling+
RCF LF 18X400 v228 +20.278 +0.01340 -55.69 +198 +0.5close+
DAS Audio S1846 vp229.6 +3.60.298 +0.03384 -11.68 =97.7 +0.2close550 W vs 1000 W: lower power handling+
RCF L 18P200N vp tlhp28 +20.306 +0.03380 -15.69.8 +1.897.2 -0.3close+
RCF LF 18X40028 +20.255 -0.02360 -35.69 +198.6 +1.1close+
Faital PRO 18FH51030 +40.29 +0.02411.9 +16.39.25 +1.2598 +0.5close600 W vs 1000 W: lower power handling+

Compare the closest 3 against the FTR18-4080HD →

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.