'Jaw-dropping' is asking a lot of any improvement, as others have said. However, I have found that all the cables can tune a system to a really valuable degree. I used some home-made copper cables for a while that were virtually identical to Wireworld Polaris (old polaris). I also had QEC Silver 12 (which is actually copper) that was very, very slightly better than Nordost Purple Flars.. or perhaps a tiny bit better. However I purchased some Analysis Plus Oval 8 and they are wonderful; very easy-sounding and balanced top to bottom. Definitely in your price range used.
What speaker cable made a major difference in the sound quality of your speakers??
I am curious what speaker cables made a big "jaw dropping difference" in the sound quality of your current speakers. What most impressed you about the difference; that is, overall musicality, tighter, deeper bass, midrange clarity and soundstage depth, etc.etc.
Keep the price of the speaker cables chosen or auditioned at between $800- $1000 or from $1000-$1500. Was the cable bought new or used??
Thank you, SJ