These three cables, what would you choose?

Taralab's rsc prime 500, after break-in,  you will appreciate the choice. 

Once upon a time I was suckered by the dealer into buying Tara Labs. No additional value than a same gauge Monoprice Nimbus bi-wire. My Tara Labs 12awg biwire is sitting in a drawer. I found no difference in quality of audio.

MF V90 DAC is a steal!! Had one with a NAD M55 cd/sacd player and made an improvement

" Once upon a time I was suckered by the dealer into buying Tara Labs. No additional value than a same gauge Monoprice Nimbus bi-wire. My Tara Labs 12awg biwire is sitting in a drawer. I found no difference in quality of audio."

You shouldn't let anyone talk you into anything. That part of it has nothing to do with cables.

Where's your dealer in all this? He should be helping you. Picking through differences in cables is not a beginners task. The sad part is, now you'll suffer for it because you got burned.

If you were my customer and had this problem, I would sit you down in front of a system with your cables and do some comparisons. I would show you what to listen for. Sometimes in audio, you struggle to hear things that other people can. With some listening and guidance, you'll eventually hear the differences. Once that happens, its easy. You just have to hear a change for the first time. After that initial breakthrough, you couldn't not hear the differences in cables if you wanted to. But it does take some practice. 

I would find a different dealer. He should know all this, and at the very least, should have taken the cables back. If you want, post your entire system, along with your room and listening preferences. I should be able to walk you through the process of what to listen for.