FTR18-4080FD
Glass loaded paper cone with weather-resistant impregnation
Optimised double suspension
Airflow vented magnet assembly for dynamic heat dispersion
Specifications
1000W
Nominal Power Rating
97dB
Sensitivity
4in
Voice coil diameter
Nominal Diameter
457mm/18in
Nominal Power Rating
1000W
Continuous Power Rating
2000W
Sensitivity
97dB
Rated Impedance
8Ω
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
5.62Ω
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
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 is defined as 3dB greater than the AES rating.
Sensitivity measured on axis at 1W, 1m in 2Π anechoic environment.
Xmax is derived from: (voice coil winding width-gap depth)/2.
Small Signal Parameters are measured after unit subjected to pre-conditioning signal.