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 (Hg)
10mm / 0.39in
VC winding height (Hvc)
22mm / 0.87in
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
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
8
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
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: 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*(Hvc-Hg) + 0.25*Hg