I have a suspicion that my new 412's have a problem... Very occasionally and unpredictably I hear a very very subtle transient "crackle" in the upper mid range on one speaker. I can't decide if it's a poor recording (I've noticed it mainly on a few older A to D releases and some very small label releases) but I'm skeptical since it's always the right speaker. It sounds almost like a dirty connector or pot (but isn't). I'm pretty adept technically but I've never dealt with anything like this. Where would you guys start to figure out if there is a problem and narrow down the cause? I'm especially concerned since these are no longer available and the thought of shipping it for repair is pretty horrifying. Thanks in advance...
(You sure you want to keep those dirty old 4343s Steve?)
PaulB