shielded vs unshielded pros and cons?

Many years ago, I tried the shielded and unshielded version of otherwise identical Kimber cable between my tonearm and phono stage.  At this very noise sensitive location, noise intruded with the unshielded cable, but the sound was better—more lively and open sounding.  If you can get away with it, unshielded might be better sounding.

Who knows where noise can intrude in a system.  I recently talked with a repair person for a local shop who had to run down RFI problems in a system.  It turns out that the long speaker cables were acting as an antenna and injected noise into the system; who knew that speaker cables would benefit from shielding?