Tuesday morning the cleaning lady cried fire, one of my surround speakers, a Sonus Faber Signum was smoking a lot from the woofer... The wife ran, umplugged the speaker cables, and the smoke subsided...
The woofer melted and move away from the dust cap, thats where the smoke came from... see picture:
Only cableTV playing at ambient levels through a Krell Showcase processor, speakers small, xover 100hz, then the Powerpac...
What do you think happened ?