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.