Celestion FTR18-4080FD

• Glass loaded paper cone with weather-resistant impregnation
• Optimised double suspension
• Airflow vented magnet assembly for dynamic heat dispersion

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Nominal Diameter                       457mm/18in

Nominal Power Rating                1000W

Continuous Power Rating           2000W

Sensitivity                                    97dB

Rated Impedance                        8?

Frequency Range                        30Hz-2500Hz

Voice coil diameter (mm)             100mm

Voice coil diameter (in)                 4in

Chassis Type                               Cast Aluminium

Magnet Type                                Ferrite

Magnet Weight                             3.1kg/110oz

Voice coil material                         Round copper

Former Material                             Glass fibre

Cone material                                Glass loaded paper (weather-resistant)

Surround Material                          Cloth-sealed

Suspension                                    Double

Xmax                                             6mm/0.24in

Gap Depth                                    10mm/0.39in

Voice coil winding width                22mm/0.87in

Small Signal Parameters

Sd

1134.12cm2/175.79ft3

Fs

25.20Hz

Mms

177.81g/6.27oz

Qms

4.750

Qes

0.304

Qts

0.286

Re

5.62?

Vas

408.72L/14.43ft3

BI

22.81Tm

Cms

0.23mm/N

Rms

5.92kg/s

Le (at 1kHz)

1.50mH

Mounting Information

Mounting slot dimensions

10mm x 7mm/0.39in x 0.27in Ø

Mounting slot PCD

429mm-440mm/16.89in-17.32in

Number of mounting slots

8

Overall Depth

205mm/8.07in

Overall Diameter (mm)

452mm

Overall Diameter (in)

17.8in

Cut-out diameter

416mm/16.38in

Unit Weight

9.8kg/21.6lb

Packed Dimensions & Weight

Single pack size W x D x H

500mm x 500mm x 240mm/19.7in x 19.7in x 9.4in

Single pack weight

11.5kg/25.3lb

Multi Pack Qty

24

Multi pack size W x D x H

1210mm x 1050mm x 980mm/47.6in x 41.3in x 35.4in

Multi pack weight

265kg/580lb

Frequency Response and Impedance Curves