The zombie of Roger Russell speaks his tune once more. And McIntosh show demos are done with zip cord off the backs of the amps, right.
You don't need any special speaker wire to suit your very sensitive speakers, but you will find some benefit in using wire made for the purpose, i.e. speakers. Not to say the Wall Mart cord won't work either.
I tried 12-gauge Romex, then a Brit-made QED wire, then moved way up to a whole 300 bucks for two used 8-foot biwire lengths of Ensemble cable. There are a whole lot of very reasonably-priced products you could be trying as you start off. One I use in a second system (and think very good value) is Audioquest Type 4.