LF Cast Chassis / Ferrite

Celestion
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OEM

FTR18-4080FDX

FTR18-4080FDX
FTR18-4080FDX

Features

  • 18" ferrite woofer provides 800Wrms power handling (AES standard) and 96dB sensitivity
  • 4" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
  • FEA optimised magnet assembly provides low harmonic distortion and very high motor strength
  • Ribbed, straight-sided, glass-loaded cone, with FlexirolTM surround for greater excursion control
  • Double suspension for exceptional linearity at the highest excursions
  • Smart chassis design minimises acoustic distortion

8Ω Frequency Response

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. Measured on axis at 1W, 1m in 2π anechoic environment.
  3. Xmax derived from: (voice coil winding width-gap depth)/2.

General Specifications

Nominal diameter
457mm/18in
Power rating1
800Wrms
Nominal impedance
Sensitivity2
96dB
Frequency range
30-1000Hz
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 fibre reinforced paper
Surround material
Cloth-sealed
Suspension
Double
Xmax3
6mm/0.24in
Gap depth
10mm/0.39in
Voice coil winding width
22mm/0.87in

Small Signal Parameters

D
0.38m/14.96in
Fs
37.3Hz
Mms
206.36g/7.28oz
Mmd
184.75g/6.52oz
Qms
10.25
Qes
0.43
Qts
0.413
Re
5.62Ω
Vas
160.74lt/5.67ft3
BI
25.116Tm
Cms
0.088mm/N
Rms
4.716kg/s
Le (at 1kHz)
1.52mH

Mounting Information

Diameter
462mm/18.19in
Overall depth
205mm/8.07in
Cut-out diameter
416mm/16.38in
Mounting slot dimensions
10mm x 7mm/0.39in 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 2240mm
/19.7in x 19.7in x 9.4in
Single pack weight
11.6kg/25.6lb
Multi pack (24) size W x D x H
1500mm x 1000mm x 980mm
/59.1in x 39.4in x 38.6in
Multi pack (24) weight
278kg/608lb