i've had really good luck with my analysis + Oval 9 speaker cable, in fact i'm also "doubling" it up because it is reasonably cheap and sounds very nice...
Speaker Cable Jolida302a/Castle Richmond
I recently got a Jolida 302a and Castle Richmond speakers. for the present I have just 'doubled up' some 12ga speaker wire to have maximum conductors between the amp and speakers. It is such a leap from what I was listening to before that I am very pleased however I would assume that some speaker cable upgrade would produce a difference. Any suggestions that won't cost the same as the total of my system? I've thought about Nordost Octava or AudioQuest CV4 or Type 4+. These all seem to be in my reachable price range.