LF Cast Chassis / Ferrite

Celestion
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CF1025C

CF1025C
CF1025C

  • Balanced airflow venting provides enhanced cooling
  • Twin demodulation rings

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
254mm/10in
Power rating1
300Wrms
Continuous power rating2
600W
Nominal impedance
8Ω
Sensitivity3
99dB
Frequency range
60-5,000Hz
Voice coil diameter
64mm/2.5in
Chassis type
Cast Aluminium
Magnet type
Ferrite
Magnet weight
1.7kg/60oz
Coil material
Edgewound copper clad aluminium
Former material
Glass fibre
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Xmax4
2.5mm/0.1in
Gap depth
8mm/0.31in
Voice coil winding width
12.5mm/0.49in

Small Signal Parameters

D
0.21m/8.27in
Fs
54.8Hz
Mms
37.03g/1.31oz
Qms
2.338
Qes
0.299
Mmd
32.51g/1.15oz
Qts
0.265
Re
5.15Ω
Vas
38.63lt/1.36ft3
BI
14.82Tm
Cms
0.23mm/N
Rms
5.46kg/s
Le (at 1kHz)
0.57mH

Mounting Information

Overall diameter
265mm/10.43in
Overall depth
119mm/4.69in
Cut-out diameter
230.8mm/9.1in
Mounting slot dimensions
8x6.5mm/0.3x0.25in
Number of mounting slots
8
Mounting PCD range
244.5-247mm/9.63-9.73in
Unit weight
4.9kg/10.8lb

Packed Dimensions & Weight

Single pack size W x D x H
306mm x 306mm x 155mm
/12in x 12in x 6.1in
Single pack weight
5.5kg/12.1lb
Multi pack size W x D x H
555mm x 520mm x 290mm
/21.9in x 20.5in x 11.4in
Multi pack weight
45kg/99lb