Axiom Home Page Forums General Discussion Home Theater Help choosing an in-wall component rack/shelf.

As with all things electrical, you just have to follow the proper size of wire to handle the power required, but you still have that extra connection at the receptacle. If that outlet is just the tiniest bit loose you now have added resistance in the line and some potential for power loss/heat build up. IMO as long as you have a good connection(the real issue) and proper size cabling, adding an extension cord should not result in any power feed issues, it is no different than adding an extra outlet with 14/2 wiring in the wall.