Are manufacturer AC cables good enough?


I have two PS Audio AC3 and two Pangea AC 14 cables I don't use.  My thinking is that Ayre wouldn't supply cables that are inadequate for their components.  Is that thinking flawed?

db  
dbphd
The tweaky magic stuff allows you to share the experience of visiting your dealer to talk about your hobby.  It makes you happier, so you believe it works. This is a great marketing plan, because every time you visit the store, is a selling opportunity for new equipment.. 
I don’t turn my nose up at a placebo or expectation bias, as long as it improves the sound.