Last year I fried the tweeter section of my 700rb head by foolishly forgetting to use the appropriate speakon when connecting to a strange cab in a rehearsal room. GK specialist said that part was beyond repair but I could just set my 410rbh cab to full range mode and use it that way.
I've been doing this and it's been working quite happily ever since.
Until tonight when it gave a few screechy sounds and then proceeded to emit big flashes of bright yellow light from the left hand slots of the cab whenever I played hard. Freaked me out so used the in house bass amp for the rest of the night.
Any ideas guys? I really hope I haven't ruined the cab.