Celestion - FTR18-4080FD 1000W 8ohm - LF Die Cast Chassis Loudspeaker - Ferrite

Features

- 18 ferrite woofer provides 1000Wrms 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

- Double suspension for exceptional linearity at the highest excursions

- 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): 1000Wrms

Continuous power rating(2): 2000W

Nominal impedance: 8ohm

Sensitivity(3): 97dB

Frequency range: 30-2500Hz

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: Double

Xmax(4): 6mm/0.24in

Gap depth: 10mm/0.39in

Voice coil winding width: 22mm/0.87in

Small Signal Parameters

D: 0.38m/14.96in

Fs: 26Hz

Mms: 172.42g/6.08oz

Qms: 4.33

Qes: 0.29

Mmd: 150.81g/5.32oz

Qts: 0.27

Re: 5.39ohm

Vas: 395.56lt/13.96ft3

BI: 22.88Tm

Cms: 0.22mm/N

Rms: 6.506kg/s

Le (at 1kHz): 1.41mH

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: 9.8kg/21.6lb

Note

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

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

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