LF Cast Chassis / Ferrite

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FTR18-4080HDX

FTR18-4080HDX
FTR18-4080HDX

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

Frequency Response and Impedance Curves

Product Graph
  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 Ratingg is defined as 3dB greater than the AES rating.
  3. Measured on axis at 1W, 1m in 2Π 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.

General Specifications

Nominal diameter
457mm/18in
Power rating1
1000Wrms
Continuous power rating2
2000W
Nominal impedance
Sensitivity3
95dB
Frequency range
30-2,500Hz
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
Xmax4
8mm/0.33in
Gap depth
9.5mm/0.37in
Voice coil winding width
25mm/0.99in

Small Signal Parameters4

D
0.38m/14.96in
Fs
39.2Hz
Mms
171.75g/6.06oz
Qms
5.387
Qes
0.466
Mmd
177.41g/6.26oz
Qts
0.429
Re
5.0Ω
Vas
174.88lt/6.18ft3
BI
21.29Tm
Cms
0.1mm/N
Rms
7.85kg/s
Le (at 1kHz)
1.79mH

Mounting Information

Overall diameter
452mm/17.8in
Overall depth
205mm/8.07in
Cut-out diameter
416mm/16.38in
Mounting slot dimensions
10mm x 7mm/0.4in x 0.27in
Number of mounting slots
8
Mounting PCD range
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
11.6kg/25.6lb
Multi pack size W x D x H
1210mmx1050mmx980mm
/47.6inx41.3inx35.4in
Multi pack weight
265kg/580lb