Magnepans don't usually crackle, they slap or buzz (loose wire). I did have a tube amp that didn't work with my MMGs. Just on one place on one CD, it just didn't like what was going on. I swapped amps and it went away.
Magnepan MMGs Crackle Sound
I was listening to an album I had never heard before and I noticed a crackling sound coming out of the speakers. I confirmed it wasn't actually part of the recording by listening thru headphones. What I don't understand is I don't hear it on anything else I listen to. Since I'm not the original owner of the speakers, I contacted Magnepan to get the build date, which was June 2008. Seems like they aren't old enough to go bad after 13 years. I've had them for about 2 months. I don't drive them particularly hard. Max volume in my room is around 88 db. Anything over that is too loud for my ears. My question is how can I troubleshoot the issue to confirm they need to be fixed. I don't want to ship to Magnepan unless absolutely necessary. I know it's not a component issue because I hear the same thing in my office system when listening to the offending album.