It seems that my powered ACI Force subwoofer purchased in 2005 has developed a problem. And the company went out of business in 2009.
The sub was often in standby mode, but we came home yesterday to hear a significant hum, a bad smell, and a rather warm amp. After unplugging it and letting it cool down, I tried running it again briefly with an aud with lots of bass. I ran my fingers under the speaker cone and it felt weird, so here is a picture. Anyone able to diagnose the problem? Amp or cone?
This is what the cone looks like when it is powered down. When powered on, it recesses further in.
I just bought a new carbon road bike frame, so I can't really afford a new sub of this caliber. I'm hoping this is repairable. Thanks.