Hi all, my friends house where we used to practice has been struck by a lightning recently, luckily nobody was there at the time. The windows and doors were blasted out of their frames and plate amplifiers in our powered monitors exploded out of the cabinets, even the xlr cable connecting mixer and plate amps exploded in hundreds of pieces shredding the carpet beneath it as if it were a high speed fuse. My amplifier and guitarists amplifier were not plugged to the mains socket, but that did not save the speakers. Guitar speaker cones were torn off their suspensions, while my eminence kappa 15 lfa did not show any damage, at least at low volumes. At next reharshal i turned the volume up and noticed nasty distortion/farting coming out of my cab. I tried other amp, cables, even disconnected it from the xover and wired it directly with no avail. Still farting badly. I took the speaker out of the cab and inspected it throughly but could not see any damage on cone/suspension/spyder assembly. Could anyone have an idea what could cause the problem? I suspected it could be bent voice coil as it slammed the magnet plate, but quickly discarded that idea as there is no visible cone creasing. Thanks!