For those with issues with sound cutting out, I'm now thinking it may be a problem with the cable, and not the drivers itself. Ive owned a pair of UE900 without any issues, but returned them to go with the SE535 ltds. Liked the cables of the UE900 so much that i bought a pair to use with my 535, and for the first time am noticing crackling/sound cutting out from the earpieces if connector is moved. Prior, the 535s never experienced any problems with the stock cable
This is probably the cause of the problem, I wouldn't doubt it. However, this would easily explain the cutting out. However, some people have stated only hearing the crackling at high volumes, not low. I have no clue why (or if it was just a coincidence). Cable can be cleaned pretty quickly.