Hello
I had something close to that happen in my shop setup. Come to find out at the breaker box I had a bad or burnt, bus bar. The breaker contacts to bus were arcing on ONE rail. The old owner ran an old AC arc welder (70s) out there. burnt the bus. I never noticed until I set up a pretty good system out there. Oh yea, snap, crackle pop for sure. Everything but sounding good. I added voltage maintenance, and cleaners and it worked until one night I opened the panel and SAW the little light show going on with every bass note at about 100 db. LOL Now, hee hee, look out..Crazy stuff for sure...
Regards and good hunting..
I had something close to that happen in my shop setup. Come to find out at the breaker box I had a bad or burnt, bus bar. The breaker contacts to bus were arcing on ONE rail. The old owner ran an old AC arc welder (70s) out there. burnt the bus. I never noticed until I set up a pretty good system out there. Oh yea, snap, crackle pop for sure. Everything but sounding good. I added voltage maintenance, and cleaners and it worked until one night I opened the panel and SAW the little light show going on with every bass note at about 100 db. LOL Now, hee hee, look out..Crazy stuff for sure...
Regards and good hunting..