Overly sensitive tweeter/midrange


I have Sonus Faber Amati Traditions. They sound great on 85% of music. The other 15%, I swear I hear some type of ugly noise in the transients. Of course, I can't explain it better than that, and my wife can't hear it at all. It sounds like a pop or a click you might expect from a broken driver, but much more subtle. I've tried to determine if it's one speaker or both. I can really only hear it on one speaker, but who knows. Is this something anyone else has dealt with that might remotely know what I'm talking about? I don't think it's just the recordings. 

128x128torke

Yes, I've tried that. I've gone back and forth. But the issue is subtle enough and I can't predict when it will do it. I just want to make sure (a) a tweeter or midrange are not damaged; or (b) the crossover isn't having some problem. I bought the SFs used. They were dealer demos.

If it happens randomly and only in one speakers try flipping all cables from left to right. If the issue moves with the cables to another speaker start eliminating potential culprits one by one by switching back the interconnects first then speaker cables. 
If the problem stays on the same channel after the cable move then it’s either the speaker or some sort of interference. Do you have a router or access point or mesh wifi node in close proximity to your components and cables?