FTR18-4080FD

18-inch, cast aluminium chassis, ferrite magnet LF driver

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

Specifications

2000W

Continuous power rating

97dB

Sensitivity

4in

Voice coil diameter

Nominal diameter

457mm / 18in

Power rating

1000W

Continuous power rating

2000W

Rated impedance

8Ω

Sensitivity

97dB

Frequency range

30-2500Hz

Chassis type

Cast aluminium

Magnet type

Ferrite

Magnet weight

3.1kg / 110oz

Voice coil diameter

100mm / 4in

Voice coil material

Round copper

Former material

Glass fibre

Cone material

Glass loaded paper (weather-resistant)

Surround material

Cloth-sealed

Suspension

Double

Gap height (H_g)

10mm / 0.39in

VC winding height (H_vc)

22mm / 0.87in

Parameters

1134.12cm² / 175.79ft³

25.20Hz

Mms

177.81g / 6.27oz

Qms

4.750

Qes

0.304

Qts

0.286

5.62Ω

Vas

408.72l / 14.43ft³

22.81Tm

Cms

0.23mm/N

Rms

5.92kg/s

Le (at 1kHz)

1.50mH

Xmax

8.5mm / 0.34in

Mounting Information

Overall diameter

452mm / 17.8in

Overall depth

205mm / 8.1in

Cut-out diameter

416mm / 16.38in

Mounting hole dimensions

10x7mm / 0.39x0.27in

Number of mounting holes

Mounting hole PCD

429-440mm / 16.89-17.32in

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

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

Topmost curve: Frequency response on axis | Secondary curve: Frequency response at 45° off axis

Power rating: 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.

Continuous power rating: Defined as 3dB greater than the AES rating.

Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.

Parameters: Measured after unit subjected to pre-conditioning signal.

Xmax: 0.5*(H_vc-H_g) + 0.25*H_g

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