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Celestion - CF1830E 700W 8ohm - LF Die Cast Chassis Loudspeaker - Ferrite
Altoparlante da 18" con chassis in fusione d'alluminio, magnete in ferrite, bobina da 3", potenza 700Watt, impedenza 8ohm
Caratteristiche
- 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
Speifiche Generali
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
Parametri di Thiele-Small
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
Informazioni di Montaggio
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.
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