I have 5 kaplan he cables (2 rhodium and 3 copper) and like them. they provide body and presence. Have compared them to audience (regular not e) and vh audio and heard them compared to the kubala fascination in another system. good value and they can be auditioned without risk. the copper and the rhodium terminations are different -- you can email paul kaplan through audio circle and he will give advice about what might work best. good guy .
on power conditioning, i use a balanced power conditioner (BPT) because i found that several of the filtering conditioners sucked some of the life out of they system (particularly my preamp) and that the balanced do not do that. bpt has a trial period -- you can try a stock unit and if you like it you can send back for upgrades. given how much conditioners can affect the sound finding a way to audition them seems a must to me. good luck
on power conditioning, i use a balanced power conditioner (BPT) because i found that several of the filtering conditioners sucked some of the life out of they system (particularly my preamp) and that the balanced do not do that. bpt has a trial period -- you can try a stock unit and if you like it you can send back for upgrades. given how much conditioners can affect the sound finding a way to audition them seems a must to me. good luck