Celestion - CF1830E 700W 8ohm - LF Die Cast Chassis Loudspeaker - Ferrite

Features

- 18 ferrite magnet, cast aluminium chassis LF driver delivering 700Wrms (AES Standard) power handling and 94dB sensitivity

- 3" high temperature, multi- layer voice coil for greater motor force

- FEA optimized magnet assembly delivers highly symmetrical cone - movement, leading to exceptionally low harmonic distortion

- Balanced Airflow Venting (BAV) on the front-plate increases airflow to provide enhanced cooling

- Dual Magnet Motor (DMM) incorporates a secondary magnet used to increase overal motor force (Bl) without the need for any additional increase in magnet size

- "Multi-roll" surround provides exceptional linearity at extremes of cone excursion

General Specifications

Nominal diameter: 457mm/18in

Power rating(1): 700Wrms

Nominal impedance: 8ohm

Sensitivity(2): 94dB

Frequency range: 30-2500Hz

Voice coil diameter: 75mm/3in

Chassis type: Cast Aluminium

Magnet type: Ferrite

Coil material: Round Copper

Former material: Glass Fibre

Cone material: Glass-Reinforced Paper

Surround material: Cloth-sealed

Suspension: Single

Gap depth: 8mm/0.31in

Voice coil winding width: 18mm/0.71in

Xmax(3): 5mm/0.79in

Small Signal Parameters

D: 0.38m/14.96in

Fs: 40.5Hz

Mms: 167.47g/5.91oz

Qms: 4.367

Qes: 0.371

Mmd: 145.86g/5.15oz

Qts: 0.343

Re: 5.27ohm

Vas: 167.92lt/5.93ft3

BI: 24.6Tm

Cms: 0.092mm/N

Rms: 9.33kg/s

Le (at 1kHz): 3.24mH

Mounting Information

Overall diameter: 460mm/18.11in

Overall depth: 211.3mm/8.31in

Cut-out diameter: 414mm/16.29in

Mounting slot dimensions: 9.25x7mm/0.36x0.28in

Number of mounting slots: 8

Mounting PCD range: 432-441mm/17.0-17.36in

Note

(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.