Celestion : T5387: 15″ 400W Speaker 8OHM

15″ ferrite woofer provides 400Wrms power handling (AES Standard) and 99dB sensitivity3″ high temperature Inside/Outside voice coil efficiently dissipates heat preventing sensitivity loss through thermal compressionFlexirolTM surround for greater excursion controlSaturated gap technology for lower harmonic distortionLow frequency response down to 40HzSmart chassis design minimises acoustic distortionNominal diameter 381mm/15inPower rating 400WrmsNominal impedance 8OSensitivity 99dBFrequency range 40-4000HzVoice coil diameter 75mm/3inChassis type Cast AluminiumMagnet type FerriteMagnet weight 2.3kg/81ozCoil material Round copperFormer material Glass fibreCone material Glass loaded paper with weather-resistantimpregnationSurround material Cloth-sealedSuspension SingleXmax 3mm/0.12inGap depth 10mm/0.39inVoice coil winding width 16mm/0.63in