Very strange post.The C2s are known to be lacking in bass(the weak link in the Confidence lineup) and not a speaker for "rock"to start with."The warm, tubey sound"Are we talking about Dynaudio?,lol.Where does that come from,Ive never heard anyone refer to Dynaudio as that.Silver cable is not recommended with the C lineup either.
Mow for your amp selection with those speakers..JC1s/NEVER,too many problems.Bryston/possibly but then again ,PASS on that one.Know nothing about the third.Man ,this is a strange inital post indeed.
Get a good quality SS high power amp, a sub which you will need..........and start looking for the right speaker cables