LF Cast Chassis / Ferrite

Celestion
Please wait
Buy Now

CF1840H

CF1840H
CF1840H


  • Rigid, lightweight carbon fibre loaded cone
  • Balanced airflow venting provides enhanced cooling
  • Twin demodulation rings
  • Low mass coil reinforcement

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 Rating 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
97dB
Frequency range
30-2,500Hz
Voice coil diameter
100mm/4in
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet weight
3.18kg/112oz
Coil material
Round copper
Former material
Glass fibre
Cone material
Carbon-fibre loaded paper
Surround material
Cloth sealed
Suspension
Single
Xmax4
8mm/0.31in
Gap depth
9.5mm/0.37in
Voice coil winding width
25mm/0.99in

Small Signal Parameters

D
0.38m/14.96in
Fs
38.5Hz
Mms
158.7g/5.6oz
Qms
3.921
Qes
0.385
Qts
0.351
Re
3.04Ω
Vas
196.7lt/6.95ft3
BI
17.041m
Cms
0.11mm/N
Rms
9.76kg/s
Le (at 1kHz)
0.95mH

Mounting Information

Overall diameter
460mm/18.11in
Overall depth
220mm/8.68in
Cut-out diameter
414mm/16.24in
Mounting slot dimensions
11mm x 7mm/0.43in-0.28in
Number of mounting slots
8
Mounting PCD range
432-441mm/17-17.36in
Unit weight
11.6kg/25.5lb

Packed Dimensions & Weight

Single pack size W x D x H
500mm x 500mm x 255mm
/19.7in x 19.7in x 11in
Single pack weight
13kg/28.6lb