Celestion FTR18-4080F 600W 8OHM LF FERRITE
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Celestion - FTR18-4080F 600W 8ohm - LF Die Cast Chassis Loudspeaker - Ferrite


- 18" ferrite woofer provides 600Wrms power handling (AES Standard) and 97dB sensitivity

- 4" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression

- FlexirolTM surround for greater excursion control

- Low frequency response, down to 30Hz

- Smart chassis design minimises acoustic distortion

- Specially treated weather-resistant cone

General Specifications

Nominal diameter: 457mm/18in

Power rating(1): 600Wrms

Continuous power rating(2): 1200W

EIA power rating(3): 800W

Nominal impedance: 8ohm

Sensitivity(4): 97dB

Frequency range: 30-3000Hz

Voice coil diameter: 100mm/4in

Chassis type: Cast Aluminium

Magnet type: Ferrite

Magnet weight: 3.1kg/110oz

Coil material: Round copper

Former material: Glass fibre

Cone material: Glass loaded paper with weather-resistant impregnation

Surround material: Cloth-sealed

Suspension: Single

Xmax(5): 6mm/0.24in

Gap depth: 10mm/0.39in

Voice coil winding width: 22mm/0.87in

Small Signal Parameters

D: 0.38m/14.96in

Fs: 32.7Hz

Mms: 158.22g/5.58oz

Qms: 5.24

Qes: 0.32

Mmd: 136.61g/4.82oz

Qts: 0.30

Re: 5.31ohm

Vas: 271.99lt/9.6ft3

BI: 23.31Tm

Cms: 0.15mm/N

Rms: 6.21kg/s

Le (at 1kHz): 1.46mH

Mounting Information

Overall diameter: 452mm/17.8in

Overall depth: 205mm/8.07in

Cut-out diameter: 416mm/16.38in

Mounting slot dimensions: 10mm x 7mm/0.39in x 0.27in

Number of mounting slots: 8

Mounting PCD range: 429-440mm/16.89-17.32in

Unit weight: 9.7kg/21.4lb


(1)Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.

(2)Continuous Power Handling is defined as 3dB greater than the AES rating.

(3)Tested as per the EIA-426-A standard.

(4)Measured on axis at 1W, 1m in 2pi anechoic environment.

(5)Xmax derived from: (voice coil winding width-gap depth)/2.

(6)Small signal parameters measured after unit subjected to pre-conditioning signal.

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