LF Cast Chassis / Ferrite

Celestion
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OEM

CF1540HD

CF1540HD
CF1540HD

  • Balanced airflow venting provides enhanced cooling
  • Twin demodulation rings
  • Optimised double suspension
  • Glass loaded paper cone with weather-resistant impregnation

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
381mm/15in
Power rating1
1200Wrms
Continuous power rating2
2400W
Nominal impedance
8Ω or 8Ω
Sensitivity3
97dB
Frequency range
35-2,000Hz
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
Glass loaded paper(weather resistant)
Surround material
Cloth sealed
Suspension
Double
Xmax4
8mm/0.33in
Gap depth
9.5mm/0.37in
Voice coil winding width
25mm/0.98in

Small Signal Parameters

D
330mm/12.99in
Fs
40.8Hz
Mms
145.53g/5.13oz
Qms
5.591
Qes
0.323
Qts
0.305
Re
5.15Ω
Vas
108.3l/3.82ft3
BI
24.4Tm
Cms
0.11mm/N
Rms
6.67kg/s
Le (at 1kHz)
1.22mH

Mounting Information

Overall diameter
393mm/15.46in
Overall depth
184mm/7.24in
Cut-out diameter
354mm/13.94in
Mounting slot dimensions
10mm x 7mm/0.39in x 0.27in
Number of mounting slots
8
Mounting PCD range
357-374mm/14.45-14.72in
Unit weight
11.2kg/24.6lb

Packed Dimensions & Weight

Multi pack size W x D x H
1210mm x 1050mm x 980mm
/47.6in x 41.3in x 35.4in
Multi pack weight
300kg/660lb