Need cable advice

Ok, I have moved my system and now need longer (10 ft.) speaker cables. I am mainly a 2 channel analog guy.....2 channel rig on one side of cabinet and AVR stuff on the other. Using theater BP on my Cary integrated amp. My equipment is as follows - Cary CAI-1 integrated amp, Rogue Audio Stealth phono section, Esoteric DV-50 cdp, Thorens td-160 / SME3009/S2IMP, JM Lab Electra 926 speakers. I listen to mainly jazz, alternative and classic rock. Have been using $300-$400 cables and have been satisfied with sound but have been out of the audio loop for a long time now so don't know if i'm missing out on anything. Don't mind buying used and don't want to spend more than $500.00. I should'nt have to spend more than this in order to extract quality sound. There's a lot of snake oil out there. Any guidance would be greatly appreciated. Thanks!