Celestion CF1830E 700W 8ohm LF Ferrite

Celestion - CF1830E 700W 8ohm - LF Die Cast Chassis Loudspeaker - FerriteFeatures- 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 excursionGeneral SpecificationsNominal diameter: 457mm/18inPower rating(1): 700WrmsNominal impedance: 8ohmSensitivity(2): 94dBFrequency range: 30-2500HzVoice coil diameter: 75mm/3inChassis type: Cast AluminiumMagnet type: FerriteCoil material: Round CopperFormer material: Glass FibreCone material: Glass-Reinforced PaperSurround material: Cloth-sealedSuspension: SingleGap depth: 8mm/0.31inVoice coil winding width: 18mm/0.71inXmax(3): 5mm/0.79inSmall Signal ParametersD: 0.38m/14.96inFs: 40.5HzMms: 167.47g/5.91ozQms: 4.367Qes: 0.371Mmd: 145.86g/5.15ozQts: 0.343Re: 5.27ohmVas: 167.92lt/5.93ft3BI: 24.6TmCms: 0.092mm/NRms: 9.33kg/sLe (at 1kHz): 3.24mHMounting InformationOverall diameter: 460mm/18.11inOverall depth: 211.3mm/8.31inCut-out diameter: 414mm/16.29inMounting slot dimensions: 9.25x7mm/0.36x0.28inNumber of mounting slots: 8Mounting PCD range: 432-441mm/17.0-17.36inNote(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.