Benefit of shielded ac wire? Any downside?

teo_audio said it all tec like, but that is the just of it. Different combinations of shielding can KILL the dynamics of an amp because of a "power cable". Poorly designed power supply doesn't help either along with a incorrectly shielded power cable and then use an AC filter and maintainer.  Disaster, SQ wise, if your not careful.

Regards

@oldhvymec. Tmi :)

@teo_audio and Miller carbon. I'm speaking of the in wall wiring. Would like to be further informed. I understand? Wire acts as an antenna and thought?  10 gauge shielded wire from the breaker box to the receptacle would be a good idea. Thirsty for knowledge :)

@ mijostyn. Thanks. How/why did you decide on this?

Ptss, a very good timely question as I am building a home and will place 2 dedicated circuit for my system. I am also wondering the benefits of running shielded cables to the outlets from the main breaker box.