Need help buying new speaker cable


My Tara Labs Apollo speaker cable broke at the negative terminal end.  I will need to replace them.  What cables would you recommend?  I would like to know what cables out there would be comparable.  I would like to upgrade but they need to be affordable. A local dealer recommended Audioquest Robin Hood’s but they cost $2,000.  I just can’t spend that much money.  I am looking at Audioquest Rocket 88’s for $1,150.  Any ideas?  I would also like to know what the sound difference be compared to my Appolo’s?  I still have a difficult time you can hear a sound difference between one cable and another.  
128x128larry5729
Show me some engineering data that proves the superiority of cable A over cable B! Otherwise "golden ear" claims are just whistlin' Dixie! Ditto for manufacturer claims! They want your money!
Sure appreciate the help.  I just got off the phone with Tara Labs and they told me it would only cost $60 per end to replace the Y-Shaped speaker wire terminals.  Since I have had difficulty with connectivity issues, I might go this route.  The guy from Tara Labs told me my Apollo's are high quality speaker cable.  I have problems trying to keep their hollow banana plugs from working themselves loose.  I wonder if they could terminate the ends using Sure Grip banana plugs.  Someone told me these are spring loaded and they will fit firmer than the hollow banana plugs I am currently using.  The problem is when I push my cabinet back towards the back wall the left banana plug works itself loose.  Will these Sure Grip banana plugs stay on?
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I am currently using the Tara Labs hollow banana plugs.  The problem is, is when I push my cabinet back towards the back wall, I lose a connection on my left speaker.  I wonder if anyone has experience using Sure Grip banana plugs?  They are made of solid metal and according to a dealer I talked to they are spring loaded.  He said these hold firmer and they would be less likely to work themselves loose.