I'd like to suggest Morrow SP1 speaker cable. I just changed to a 30 foot pair of these for my rear channels and they are wonderful. Huge soundstage, transparent and very dynamic.
best speaker wire for extra long runs
I have a 45 foot disctance between system and speakers. Currently I use whatever the thickest gauge Monster speaker wire is - I forget the specs. Is there an upgrade option that will not break the bank that would be a really significant upgrade from the Monster for such a long distance? The only option I have seen is from Cardas, but I do not have a sense of whether that would provide a significant step up in sound quality from the Monster. Speakers are Sonus Faber Grand Piano.