Celestion - CF1025C 300W 8ohm - LF Die Cast Chassis Loudspeaker - Ferrite

Features

- 10 Mid/bass driver delivering 99dB sensitivity and 300Wrms (AES standard) power handling

- FEA optimised magnet assembly and suspension delivers highly symmetrical cone movement leading to exceptionally low harmonic distortion

- Balanced Airflow Venting (BAV) increases airflow to provide enhanced cooling

- Twin demodulation rings reduce flux modulation, minimizing electromagnetic distortion

- "M-roll" surround provides progressive excursion control, yielding a smooth response even at extremes of frequency range

General Specifications

Nominal diameter: 254mm/10in

Power rating(1): 300Wrms

Nominal impedance: 8ohm

Sensitivity(2): 99dB

Frequency range: 60-5000Hz

Voice coil diameter: 64mm/2.5in

Chassis type: Cast Aluminium

Magnet type: Ferrite

Magnet weight: 1.7kg/60oz

Coil material: Edgewound copper clad aluminium

Cone material: Kevlar loaded paper

Surround material: Cloth-sealed

Suspension: Single

Gap depth: 8mm/0.31in

Voice coil winding width: 12.5mm/0.49in

Xmax(3): 2.5mm/0.1in

Small Signal Parameters

D: 0.21m/8.27in

Fs: 57.5Hz

Mms: 36.16g/1.28oz

Qms: 3.906

Qes: 0.310

Mmd: 32.51g/1.15oz

Qts: 0.287

Re: 5.54O

Vas: 35.69lt/1.286ft3

BI: 15.32Tm

Cms: 0.21mm/N

Rms: 3.358kg/s

Le (at 1kHz): 0.635mH

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

(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 2pi anechoic environment.

(3) Xmax derived from: (voice coil winding width-gap depth)/2.