Cables in question

Look thru the archives for speaker cable info. You'll see all the debates about which cable is best. The answer to your question is yes, but you didn't mention what cables you are currently using.
But you need to research what cable will be best for ur system.

Do your research, but a great cable is Canare 4S11...neutral sounding, tight bass, wide soundstage all at a low price. It's considered a "budget" cable but performs very well. Also look at Bluejeans Cable...another great performer at a low cost. I think ur Rainmakers deserve a better cable.