Celestion T5828 CF1830E Ferrite Magnet Aluminium Chassis Driver Speaker 18 Inch 500W 8OHM

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
Nominal diameter 18in/457mm
Power rating 700Wrms
Nominal impedance 8?
Sensitivity 94dB
Frequency range 30-2500Hz
Voice coil diameter 3in/75mm
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
Xmax 5mm/0.79in
Gap depth 8mm/0.31in
Voice coil winding width 18mm/0.71in